JP2020031720A - Foot dimension measurement program, foot dimension measurement method and foot dimension measurement device - Google Patents

Abstract

To provide a foot dimension measurement program, a foot dimension measurement method, and a foot dimension measurement device capable of measuring dimensions of a foot correctly and easily by using a general purpose information terminal even in a state in which the foot is not at rest.SOLUTION: A foot dimension measurement program is configured to: generate rest image data on the basis of a foot which is a measurement object in an AR space and temporarily record the data as a foot F; arrange a first measurement marker 23 at a position of a tip part F1 of a finger that protrudes for a largest distance out of the toes of the foot F on a display 2 of an information terminal 1; arrange a second measurement marker 24 at a position of a part F2 of a heel that protrudes for a largest distance; arrange a third measurement marker 25 on a line which connects the position of the tip part of the finger that protrudes for the largest distance out of the toes of the foot F and the position of the part of the heel of the foot that protrudes for the largest distance F; and in this state, automatically calculate a distance between the first measurement marker 23 and the second measurement marker 24 (the distance between F1 and F2), namely the dimensions of the foot F.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a foot size measurement program, a foot size measurement method, and a foot size measurement device, and in particular, a foot size measurement program, a foot size measurement method, and a foot size measurement device for measuring a foot size using a portable information terminal. About.

2. Description of the Related Art Conventionally, with the development of information terminals and network communication, product sales sites that allow purchase of footwear such as shoes on the Internet have been widely used.
For the user, there is an advantage that the desired footwear can be easily purchased from the home or the like via the Internet without going directly to the actual store, and as a result of the evaluation of its ease and convenience, the user has And the market size is becoming very large.

By the way, when purchasing footwear on the Internet, it is not possible to actually try on the footwear. Therefore, in order to purchase footwear suitable for one's own foot, accurate information on the dimensions of one's foot is required.
For this reason, various techniques have been developed for selecting and purchasing footwear suitable for the size of one's foot without any inconvenience without actually trying on.

For example, Patent Literature 1 discloses a shoe virtual fitting system that allows a user to purchase a ready-made shoe that fits his or her feet.
Specifically, when the user selects a shoe, based on the size of the outer size data of the user's foot measured by the measuring device and the inner size data of the selected shoe, the foot when the shoe is virtually worn is set. The hit strength is determined, and the hit strength is presented to the user.

Patent Literature 2 discloses a technique for measuring the size of a foot using a portable information device such as a smartphone or a tablet terminal.
Specifically, a foot position guide image indicating a foot placement area where a foot is placed is superimposed on a camera image which is an image captured by the camera, and a tilt sensor is used to tilt the camera with respect to a predetermined plane. When the tilt of the camera is equal to or less than a predetermined tilt threshold, a still image including a foot placed on the foot placement area on the plane and a reference object representing a predetermined shape and size and placed on the plane is displayed. Image data is generated by photographing with a camera, and the size of the foot is calculated based on the reference object and the foot area in the image data.

JP-A-2017-097563 Japanese Patent No. 60262599

However, in Patent Literature 1, since the measuring device has a large-scale configuration, it can be installed in a public place such as a convenience store, a supermarket, a department store, or a station, but it is difficult for an individual to own the measuring device, There is a problem that it is inconvenient and inconvenient because it cannot be used casually at any time.
Further, in Patent Document 2, although the dimensions of the feet can be easily measured with a portable information device owned by an individual, in order to measure the dimensions of the feet, a card having a predetermined shape and size and placed on a flat surface is used. There is a problem that the reference material is required separately, which is troublesome. In particular, in Patent Literature 2, it is necessary to photograph a foot so that the foot and the reference object are simultaneously accommodated in one frame by aligning the foot with the reference object. However, it is difficult for a child to stand still for a while with his / her foot next to the reference object, and there is a problem that accurate foot dimensions cannot be measured.

  Therefore, the present invention has been made in view of the above-mentioned problem, and an object of the present invention is to easily and accurately measure a foot size using a general-purpose information terminal even when the foot is not stationary. It is an object of the present invention to provide a foot size measuring program, a foot size measuring method, and a foot size measuring device capable of performing the following.

  According to a foot size measurement program of the present invention, the object is to provide an information terminal including an imaging unit, a plane recognition unit that recognizes a plane existing in a space projected by the imaging unit, and an arbitrary surface on the plane. Real distance obtaining means for obtaining an actual distance between two coordinates, and still image generating means for generating a still image data by photographing a still image including a foot arranged in a predetermined area on the plane by the imaging unit. A position of a first measurement marker which is a movable mark on the still image data generated by the still image generating means and specifies the position of the tip of the most prominent finger of the toes Measuring marker adjusting means for adjusting the position of the second measuring marker for specifying the position of the most protruding part of the heel of the foot, and adjusting the position by the measuring marker adjusting means. The distance between the first measurement marker and the second measurement marker is measured by applying the actual distance acquired by the actual distance acquisition means to function as dimension calculation means for calculating the dimensions of the foot. That is solved by.

  According to the foot size measuring method of the present invention, the information terminal including the imaging unit recognizes a plane present in the space projected by the imaging unit, and a two-dimensional coordinate on the plane. An actual distance obtaining step of obtaining an actual distance between the still image generating step of generating a still image data by capturing a still image including a foot arranged in a predetermined area on the plane by the imaging unit; A position of a first measurement marker that is a movable mark on the still image data generated by the still image generation step, and that specifies the position of the tip of the most prominent finger of the toes; A measurement marker adjustment step capable of adjusting a position of a second measurement marker for specifying the position of the most protruding part of the heel of the foot, and a measurement marker adjustment step. The distance between the first measurement marker and the second measurement marker whose position has been adjusted is measured by applying the actual distance acquired in the actual distance acquisition step to measure the dimensions of the foot. And the steps are performed.

  Further, according to the foot size measuring device of the present invention, a plane recognition means for recognizing a plane existing in the space projected by the imaging unit, and an actual distance for obtaining an actual distance between any two coordinates on the plane Acquisition means, still image generation means for photographing a still image including a foot arranged in a predetermined area on the plane by the imaging unit to generate still image data, and the still image generated by the still image generation means A movable mark on the data, the position of a first measurement marker for specifying the position of the tip of the most prominent finger of the toe, and the most protruding part of the heel of the foot Measurement marker adjusting means for respectively adjusting the position of the second measurement marker for specifying the position of the first measurement marker, the first measurement marker and the second measurement marker whose positions have been adjusted by the measurement marker adjustment means. The distance between the car, to have a dimension calculation means for calculating the dimensions of the foot by measuring by applying the actual distance obtained by the actual distance obtaining means, is solved by.

The foot size measurement program, foot size measurement method, and foot size measurement device of the present invention configured as described above measure the actual distance of a real object by recognizing a real space and acquiring a real plane. Applying the measurement technology in augmented reality (AR), a general-purpose information terminal having a camera function shoots a foot as a measurement object, generates still image data, temporarily stores the image, and temporarily stores the image. On the image data, the position of the first measurement marker for specifying the position of the tip of the most prominent finger of the toes and the second position for specifying the position of the most protruding portion of the heel of the toe The size of the foot (foot length) is calculated by adjusting the positions of the measurement markers and applying the actual distance obtained by the AR measurement technique to the distance between the measurement markers to measure the distance.
As described above, since the size of the foot can be easily measured using the general-purpose information terminal owned by the individual, a dedicated measuring device having a large-scale configuration is not required.
In addition, when measuring the size of the foot, a reference object serving as a measure of the length is not required, so that it is not necessary to separately prepare a reference object. In particular, since it is not necessary to photograph the foot as the measurement target in accordance with the reference object, the foot as the measurement target is once recorded as still image data, and the measurement marker can be adjusted on the still image data. For example, even when measuring the size of a child's foot which is difficult to stay still for a long time, the size of the foot can be easily and accurately measured. Furthermore, once the still image data is generated, even if the foot, which is the object to be measured, moves thereafter, the size of the foot can be measured without any problem.

  In particular, describing a preferred configuration of the foot size measurement program, the measurement marker adjustment unit is a straight line that is movable on the still image data generated by the still image generation unit, The position of the third measurement marker that connects the position of the tip of the most protruding finger and the position of the most protruding part of the heel of the foot is adjustable, and the size calculation unit is configured by the measurement marker adjustment unit. The distance between the intersection of the third measurement marker with the first measurement marker and the intersection of the second measurement marker on the adjusted position is measured by applying the actual distance acquired by the actual distance acquisition means. Then, the size of the foot may be calculated.

  In this way, the inclination of the information terminal is determined by using the third measurement marker that is a straight line connecting the position of the tip of the most prominent finger of the toe and the position of the most protruding part of the heel of the toe. Thus, even when the information terminal is inclined and is different from the actual distance in the AR space, it is possible to accurately measure the size of the foot. The third measurement marker is used as an auxiliary line by measuring the distance between the intersection of the first measurement marker and the intersection of the second measurement marker on the third measurement marker and calculating the size of the foot. And more accurate foot dimensions can be measured.

  According to a preferred configuration of the foot size measurement program, the measurement marker adjustment means is a mark movable on the still image data generated by the still image generation means, and includes a foot width of the foot. The position of the fourth measurement marker for specifying the position of the portion most protruding inward in the direction, and the position of the fifth measurement marker for specifying the position of the portion protruding most outward in the foot width direction of the foot And the position can be adjusted, and the dimension calculation unit acquires the distance between the fourth measurement marker and the fifth measurement marker whose position has been adjusted by the measurement marker adjustment unit, by the actual distance acquisition unit. It is good to measure by applying the actual distance.

  Thus, the position of the fourth measurement marker for specifying the position of the portion most protruding inward in the foot width direction and the position of the portion protruding most outward in the foot width direction of the foot are specified. By measuring the distance to the position of the fifth measurement marker, the foot width of the foot to be measured can also be calculated, and more accurate foot dimensions can be measured.

  According to the foot size measurement program, the foot size measurement method, and the foot size measurement device of the present invention, even when the foot is not stationary, the size of the foot can be easily and accurately measured using a general-purpose information terminal. It becomes possible.

It is an image figure showing an outline of a foot size measurement processing using a foot size measuring device. It is the figure which showed the structure of the foot size measuring device from a functional aspect. It is a flowchart which shows the flow of a foot size measurement process. It is a figure showing an example of a screen displayed on a foot size measuring device. It is a figure showing an example of a screen displayed on a foot size measuring device. It is a figure showing an example of a screen displayed on a foot size measuring device. It is a flowchart which shows the flow of an inter-coordinate distance acquisition process. It is an image figure showing the outline of distance acquisition processing between coordinates. It is a figure explaining a state before and after adjustment of a measurement marker. It is a figure showing an example of a screen displayed on a foot size measuring device. It is a figure showing an example of a screen displayed on a foot size measuring device. It is a figure showing an example of a screen displayed on a foot size measuring device. It is a figure showing an example of a screen displayed on a foot size measuring device. It is the schematic of the goods information provision system containing a foot size measuring device. It is the figure which showed the structure of the goods information provision server from a functional aspect. It is a figure which shows the flow of a series of operation | movement in a goods information provision system. It is a figure showing an example of a screen displayed on a foot size measuring device.

Hereinafter, an embodiment of the present invention (hereinafter, referred to as “the present embodiment”) will be described.
However, the embodiments described below are merely examples for facilitating the understanding of the present invention, and do not limit the present invention. That is, the present invention can be changed and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof.

<Outline of foot size measurement processing using the foot size measurement program according to the present embodiment>
First, an outline of a foot size measurement program, a foot size measurement method, and a foot size measurement process using the foot size measurement device according to the present embodiment will be described with reference to FIG.
FIG. 1 is an image diagram showing an outline of a foot size measurement process using an information terminal (foot size measurement device) in which a foot size measurement program according to the present invention is installed.
In the present embodiment, a measurement technique in augmented reality (AR) that can measure a real distance of a real object by recognizing a real space and acquiring a real plane is applied.
Specifically, the general-purpose information terminal 1 having a camera function is caused to function as a foot size measuring device, and still image data is generated from the foot F ′, which is a measurement object in the AR space, and temporarily recorded as the foot F. F1 ′, F2 on world coordinates corresponding to two points, the tip F1 of the most protruding finger of the finger of the foot F represented on the screen coordinates and the most protruding part F2 of the heel of the foot F. By measuring the distance of ', the size of the foot F' is measured in the AR space. At this time, the positions of F1 and F2 are specified by adjusting the positions of measurement markers described later.
Note that the measurement technology in the AR is a conventionally known technology, and thus a detailed description thereof will be omitted.

<Detailed configuration of foot size measurement device>
Next, a detailed configuration of the information terminal 1 which is a foot size measuring device will be described.
The information terminal 1 is a general-purpose information terminal (computer) having portability, a CPU that performs data processing, a ROM and a RAM that can store various programs and data, a communication interface that performs data communication, and an input device. A touch panel type display screen having the function of an output device, a camera, and the like are included as constituent elements.
The information terminal 1 is pre-installed with a program for exhibiting a foot size measurement function (hereinafter, a foot size measurement program). By reading and executing the foot size measurement program by the CPU, the information terminal 1 executes a foot size measurement process as a foot size measurement device.
The information terminal 1 is not particularly limited as long as the information terminal 1 is possessed and operable by a user, has portability, and has at least a camera function and a communication function. Tablet terminals, notebook computers, mobile phones, game machines, and the like can be used.

Although the hardware configuration of the information terminal 1 is as described above, the configuration of the information terminal 1 will be described again from a functional aspect with reference to FIG.
FIG. 2 is a diagram showing a configuration of the information terminal 1 functioning as a foot size measuring device from a functional aspect.
The configuration of the information terminal 1 will be described again from a functional aspect. As shown in FIG. 2, the information terminal 1 includes a storage unit 11, an imaging unit 12, a display unit 13, a communication unit 14, a plane recognition unit 15, an actual distance acquisition unit. 16, a still image generation unit 17, a measurement marker adjustment unit 18, and a dimension calculation unit 19.
These functional units are responsible for various processes executed by the information terminal 1, and are configured by cooperation of the above-described hardware components that configure the information terminal 1 and the above-described foot size measurement program. . Hereinafter, each of the functional units of the information terminal 1 will be described.

(Storage unit)
The storage unit 11 is configured by a ROM and a RAM, and stores the above-described foot size measurement program stored in advance, other programs for controlling various functions of the information terminal 1, and other various data. ing.
In addition, the storage unit 11 temporarily stores still image data generated by the still image generation unit 17 by capturing an image using the imaging unit 12 described below. In the present embodiment, the still image data is deleted after the dimensions are calculated by the dimension calculation unit 19 described later. The measurement record is often stored outside the information terminal 1 such as a cloud server (not shown), but may be stored in the storage unit 11.

(Imaging unit)
The imaging unit 12 is configured by a camera, and records a still image including the foot F captured by the imaging device as digital data in the storage unit 11. Note that the imaging unit 12 may have a function of capturing not only a still image but also a moving image and storing it as digital data.

(Display)
The display unit 13 is configured by a display screen of a touch panel type, and displays a moving image projected by the imaging unit 12 and displays recorded still image data. Further, a measurement marker, which will be described later, and a foot size as a measurement result are displayed.

(Communication department)
The communication unit 14 is configured by a communication interface, and mainly exchanges data with the outside of the information terminal 1, that is, the server 3 and other information terminals, which will be described later, by wireless communication. Note that the data here includes still image data and data related to foot dimensions as measurement results.

(Plane recognition unit)
The plane recognition unit 15 is one of the functions for realizing the measurement technology in the AR, and performs a process of recognizing a real space projected by the imaging unit 12 and recognizing a plane existing in the real space. It is.

(Actual distance acquisition unit)
The actual distance acquisition unit 16 is one of the functions for realizing the measurement technology in the AR, and performs a process of measuring and acquiring the actual distance between any two coordinates on the plane recognized by the plane recognition unit 15. Things.

(Still image generation unit)
The still image generation unit 17 generates still image data from a still image including the foot F captured by the imaging unit 12 and temporarily stores the data in the storage unit 11. In addition, the still image data includes information of the measurement marker displayed to be superimposed on the still image of the foot F.

(Measurement marker adjustment unit)
The measurement marker adjustment unit 18 performs a process of adjusting the position of a movable measurement marker on the still image data generated by the still image generation unit 17.
The measurement marker is displayed on the screen 2 together with the photographed still image of the foot F, and is a mark for specifying a predetermined portion of the foot F. In the present embodiment, a first measurement marker for specifying the position of the tip portion F1 of the most protruding finger of the toes, and a second measurement marker for specifying the position of the most protruding portion F2 of the heel of the foot. Three measurement markers are used as measurement markers, a third measurement marker connecting the position of the tip F1 of the most prominent finger of the toes and the position of the most protruding portion F2 of the heel of the foot. In addition, a fourth measurement marker for specifying the position of the part most protruding inward in the foot width direction of the foot, and a fourth measurement marker for specifying the position of the part protruding most outward in the foot width direction of the foot. Five measurement markers may be used.

(Dimension calculation unit)
The size calculation unit 19 performs a process of calculating the size of the foot F.
Specifically, by applying the measurement technology in the AR, by applying the actual distance acquired by the actual distance acquisition unit 16 to the distance between the measurement markers whose positions have been adjusted by the measurement marker adjustment unit 18 and measuring, The size (foot length) of the foot F is calculated. In the present embodiment, the length of the foot is calculated as the size of the foot. However, the present invention is not limited to this.

<Foot size measurement processing>
Next, a foot size measuring method according to the present embodiment will be described.
The foot size measurement method according to the present embodiment is performed using the information terminal 1 which is a computer on which a foot size measurement program runs. In other words, the foot size measuring method according to the present embodiment is applied to the foot size measuring process performed by the information terminal 1.
Hereinafter, as a description of the foot size measuring method according to the present embodiment, a flow of a foot size measuring process by the information terminal 1 which is a foot size measuring device and each step in the process will be described.

  FIG. 3 is a flowchart showing a flow of a foot size measurement process by the information terminal 1 which is a foot size measurement device. 4 to 6 and 10 to 13 are diagrams showing examples of display screens on the screen 2 of the information terminal 1 which is a foot size measuring device. FIG. 7 is a flowchart showing a flow of the coordinate distance acquisition processing by the information terminal 1 which is a foot size measuring device. FIG. 8 is an image diagram showing an outline of the coordinate distance acquisition processing. FIG. 9 is a diagram illustrating a state before and after adjustment of the measurement marker.

As shown in FIG. 3, in the foot size measurement process, first, the plane recognition unit 15 recognizes a plane in the AR space (S101), and determines whether the inclination of the information terminal 1 is within a predetermined range (S102). ).
Specifically, as shown in FIG. 4, when the plane is recognized and the inclination of the information terminal 1 is determined to be within a predetermined range (S102: Yes), the image pickup unit is displayed on the screen 2 of the information terminal 1. The area 21 is displayed so as to be superimposed on the AR space shown by 12. The area 21 serves as a frame indicating a range for accommodating the foot F which is a measurement target when photographing. A message is also displayed.

Next, when the user taps the shooting button 22 displayed on the screen 2 of the information terminal 1, the information terminal 1 performs a shooting process according to the instruction (S103).
Specifically, as shown in FIG. 5, the user superimposes the foot F, which is the measurement target, in the area 21 displayed on the screen 2 of the information terminal 1, and taps the shooting button 22 at an arbitrary timing. By doing so, a photographing process is executed.

After the photographing processing, still image data including the foot F which is the photographed measurement object is generated, and the generated still image data is temporarily stored (S104).
The stored still image data is displayed on the screen 2 of the information terminal 1. Specifically, as shown in FIG. 6, a foot F which is a measurement target is displayed so as to overlap the area 21. ing. In addition, together with the foot F, the first measurement marker 23 for specifying the position of the tip F1 of the most prominent finger of the toes, and the first measurement marker 23 for specifying the position of the most protruding portion F2 of the heel of the foot The second measurement marker 24 is an auxiliary line connecting the position of the tip F1 of the most prominent finger of the toes and the position of the most protruding portion F2 of the heel of the toe, and indicates the inclination of the information terminal 1. Three measurement markers of a third measurement marker 25 to be considered are displayed at the initial positions, respectively. Note that, in the present embodiment, the first measurement marker 23 and the second measurement marker 24 are composed of a straight line in the left-right direction and a tag indicating the position of the straight line, and are movable in the up-down direction. The third measurement marker 25 includes a vertical line and a tag indicating the position of the line, and can be moved in the left-right direction. The third measurement marker may be configured to change its angle.

Subsequently, the coordinates of the AR space are acquired in a mesh shape using the measurement technology in the AR, and are mapped on the screen coordinates displayed on the screen 2 (S105). Thereby, the actual distance between the coordinates in the real space is acquired, and is used as a reference when measuring the size of the foot F, which is the measurement target, on the still image data displayed on the screen 2 of the information terminal 1.
Here, the process of acquiring the actual distance between the coordinates will be specifically described with reference to FIGS.

As shown in FIG. 7, in the inter-coordinate distance acquisition processing, first, a variable i is initialized to 1 (S201), and a variable j is initialized to 1 (S202), and the following processing is executed.
Acquires the position of the _{Y j} points in _{X i} line on the screen coordinates (S203), the _{Y j} points earned on the screen coordinates to acquire the position of the _{Y j} 'on the world coordinate in the AR space (S204). Then, the distance between the coordinates of the Y _j point and the Y _j-1 point in the AR space is stored (S205).
Next, it is determined whether or not the variable j has reached M (S206). If the variable j has not reached M (S206: No), 1 is added to the variable j (S207) and S203. And the processing is continued. On the other hand, if the variable j has reached M (S206: Yes), it is determined whether or not the variable i has reached N (S208). If the variable i has not reached N (S208: No), 1 is added to the variable i (S209), the process returns to S202, and the process is continued. The above processing is continued, and when the variable i finally reaches N (S208: Yes), the processing ends.

Specifically, as shown in FIG. 8, grid-like points are set on the area of F on the screen coordinates, and X ₁ , X _{2. 1} line, pulling the _{X 2-wire} · · · _{X N-rays,} placed each point _{X 1} line of _Y 1, the _{X 1} line _Y 2 · · · _{Y M} and the dot in the Y axis direction. Then, for example, the distance between the coordinates of _{Y 0} and _{Y 1} of _{X 1} line, the coordinates of the _{Y 0} and _{Y 1} a distance · · · _{X 2} line between coordinates of _{Y 1} and _{Y 2} of _{X 1} line the distance between, acquires the distance between the X ₂ line of Y ₁ and the distance between the coordinate and Y ₂ ··· X _N line of Y _M-1 and Y _M and each so that the distance between the coordinates of And memorize.

After the above, the distance between the coordinates in the AR space, that is, the actual distance is acquired, and subsequently, the measurement marker is adjusted according to the operation of the user on the screen 2 of the information terminal 1 (S106).
For example, as shown in FIG. 9A, the first measurement marker 23 can be moved up and down from an initial position displayed after the generation of the still image data. As shown in FIG. The position of the first measurement marker 23 is moved to match the position of the tip F1 of the most prominent finger of the toes F. Here, the user drags the first measurement marker 23 to move it downward in order to match the position of the tip F1 of the thumb that projects most. In the present embodiment, the thumb protrudes most, but depending on the foot to be measured, the thumb may be the index finger or the middle finger. Similarly, the positions of the second measurement marker 24 and the third measurement marker 25 are also adjusted according to the operation of the user.

  Then, the adjustment of all the measurement markers is completed, that is, the first measurement marker 23 is aligned with the position of the tip F1 of the most prominent finger of the foot F, and the second measurement marker 24 is adjusted to the position of the foot F. In accordance with the position of the most protruding part F2 of the heel, the third measurement marker 25 is set to the position of the tip of the most protruding finger of the toe F and the position of the most protruding part of the heel of the foot F. The size between F1 and F2, that is, the size of the foot F is calculated in accordance with the line to be connected (S107), and the process ends.

  Specifically, as shown in FIG. 10, the first measurement marker 23 is aligned with the position of the tip F1 of the most prominent finger of the foot F, and the second measurement marker 24 is positioned at the heel of the foot F. In accordance with the position of the protruding portion F2, the third measurement marker 25 is placed on a line connecting the position of the tip of the most protruding finger of the toe F and the position of the most protruding portion of the heel of the foot F. In the combined state, the distance between the first measurement marker 23 and the second measurement marker 24 (the distance between F1 and F2), that is, the dimension of the foot F is automatically calculated. In the present embodiment, the size of the foot F means the length of the foot, the size of the foot F is displayed as 15.4 cm, and the size of footwear that fits the foot F is displayed as 15.5 cm.

Note that the measurement marker is a fourth measurement for specifying the position of the most protruding portion inside the foot width direction in addition to the first measurement marker 23, the second measurement marker 24, and the third measurement marker 25 described above. The marker 26 and the fifth measurement marker 27 for specifying the position of the portion most protruding outward in the foot width direction may be used.
In the application example shown in FIG. 11, the fourth measurement marker 26 and the fifth measurement marker 27 are each composed of a vertical straight line and a tag indicating the position of the straight line, and are respectively moved in the horizontal direction according to the user's instruction. Can be moved. As described above, if the fourth measurement marker 26 and the fifth measurement marker 27 are used in addition to the first measurement marker 23, the second measurement marker 24, and the third measurement marker 25, only the length of the foot F is obtained. Instead, even the width of the foot can be calculated, so that the size of the foot F can be measured more accurately.

When the dimensions of the foot F are measured, as shown in FIG. 12, the measurement result and the size of the footwear that is adapted according to the measurement result are displayed. For example, in the present embodiment assuming the case of measuring the size of the child's foot F, the measurement result is displayed as “measurement result 15.4 cm”, and “15.5 cm shoes are recommended for the child's foot” is recommended. The size of the footwear to be displayed is displayed. In addition, even if the size of the foot F is the same, the size of the footwear that conforms to the size may differ depending on the maker, the genre, and the like.
At the bottom of the screen 2, for example, "Recommended size measurement is recommended around November 2018" is displayed, for example, indicating the timing of re-measurement three months later, and notifying that the time is approaching. . For a growing child, whose size of the foot F is likely to change, the encouragement of regular measurement of the size of the foot F in this way may result in the wrong selection of footwear that does not fit. Disappears.

  In addition, the measurement results can be stored, and the stored measurement results can be displayed as a graph, as shown in FIG. In the present embodiment, for example, a change in foot dimensions measured and stored every three months is displayed in a line graph. For a child in a growing process in which the size of the foot is liable to change, such recording and display in an easy-to-view manner makes it easier and more convenient to use.

As described above, in the present embodiment, the size of the foot F can be easily measured using the general-purpose information terminal 1 owned by the individual, so that a dedicated measuring device having a large-scale configuration is not required.
Further, when measuring the size of the foot F, a reference object serving as a measure of the length is not required, so that it is not necessary to separately prepare a reference object. In particular, it is not necessary to photograph the foot F, which is the measurement object, in accordance with the reference object. In addition, the foot F, which is the measurement object, is temporarily recorded as still image data, and the first measurement marker 23, Since the second measurement marker 24 and the third measurement marker 25 can be adjusted, the size of the foot can be easily and accurately measured even when, for example, measuring the size of a child's foot which is difficult to stand still for a long time. Can be measured. Furthermore, once the still image data has been generated, the size of the foot F can be measured without any problem even if the foot F, which is the object to be measured, moves thereafter.

<Overview of product information providing system including foot size measurement device>
The information terminal 1, which is the foot size measuring device described above, plays a part in the product information providing system S by being connected to the server 3 that manages product information of footwear such as shoes via the communication line N. Become.
Here, an overview of a product information providing system including the foot size measuring device according to the present embodiment will be described with reference to FIG.
FIG. 14 is a schematic diagram of a product information providing system S including a foot size measuring device.

  As shown in FIG. 14, the product information providing system S of the present embodiment includes an information terminal 1 functioning as a foot size measuring device, a server 3 for managing product information of footwear such as shoes, an affiliated sales site 4 and an online sales site. It is mainly composed of various services and databases outside the mall 5 and the like, and these are connected to each other via a communication line N which is a communication network.

  The server 3 includes a server computer owned by an administrator or the like who manufactures and sells footwear such as shoes. Then, the user can enjoy the functions and services provided by the server 3 via the communication line N. That is, the user operates each information terminal 1 to communicate with the server 3 and use the function of the server 3. Further, the server 3 is not limited to one constructed by one server device, but may be constructed by using a plurality of server devices.

The communication line N is, for example, a mobile network such as the Internet, 3G, 4G, or LTE, and connects the information terminal 1, the server 3, and other external services and external databases so that they can communicate with each other.
In the drawing, the information terminals 1 and the like are connected one by one, but in reality, it is assumed that a plurality of the information terminals 1 are connected. Further, a configuration may be employed in which other servers and information terminals are connected.

<Detailed configuration of product information providing server>
Next, the configuration of the server 3 will be described.
The server 3 includes at least a CPU as an arithmetic unit that performs control and calculation / processing of data, a ROM as a read-only storage device, a RAM as a main memory (main storage device), and an external device that can communicate through the communication line N. It has a communication interface for transmitting and receiving data to and from devices and the like, and a hard disk drive or the like as an auxiliary storage device as constituent elements.

In addition, a program for exhibiting the function (hereinafter, a product information providing program) is installed in the server 3 in advance. When the product information providing program is read and executed by the CPU, a function as a product information providing device is exhibited.
Here, the function of the server 3 is enjoyed by a user such as a user or an administrator. As a method of providing the function to the user, for example, a method such as a cloud service or an ASP service can be used. It is. Further, the database server may be configured separately. Further, it is preferable to perform a system backup and a database backup.

Although the hardware configuration of the server 3 is as described above, the configuration of the server 3 will be described again from a functional aspect with reference to FIG.
FIG. 15 is a diagram showing the configuration of the server 3 from a functional aspect.

The configuration of the server 3 will be described again from a functional aspect. As shown in FIG. 15, the server 3 includes a user information database 31, a product information database 32, a user management unit 33, a product management unit 34, a product selection unit 35, and a product display. And a sales processing unit 37 as main components.
These functional units are responsible for various processes executed by the server 3, and are configured by cooperation of the above-described hardware components that configure the server 3 and the above-described product information providing program. Hereinafter, each of the functional units of the server 3 will be described.

(User information database)
The user information database 31 is configured by a hard disk drive, and has attributes such as a user's name, gender, date of birth, age, and hobby, as well as a profile image and profile introduction, a user password, and stored selected information (stored). History), information browsing history, merchandise purchase history, and other necessary information about the user are stored in association with each user.
Note that the user information database 31 may be provided in an external database server (not shown) separately from the server 3.

(Product information database)
The product information database 32 is configured by a hard disk drive, and stores information on footwear such as shoes, and related information such as advertisements and coupons related thereto. The information on footwear includes a product number, a size, a price, a product description, a product image, and the like.
The product information database 32 may be provided in an external database server (not shown) separately from the server 3.

(User Management Department)
The user management unit 33 mainly controls and manages the user information database 31. In addition, the user information database 31 acquires attributes and product purchase histories of each user from various services and various databases such as SNS and external media communicably connected to the server 3 via the communication line N. It is also possible to perform a process of storing in association with each user.

(Product Management Department)
The product management unit 34 mainly controls and manages the product information database 32. For example, it manages registration and correction of master data of product information.

(Product selection section)
The product selection unit 35 performs a process of selecting footwear (product) of a suitable size based on the information on the user's foot size received from the information terminal 1. In selecting a product, footwear of an optimal genre or category is selected as a recommended product based on user attributes such as age and gender.

(Product display section)
The product display unit 36 performs a process of transmitting information regarding the footwear (product) selected by the product selection unit 35 to the information terminal 1 of the user and displaying the information.

(Sales Processing Department)
The sales processing unit 37 performs a process of selling footwear (goods) based on the order information received from the information terminal 1 of the user. For example, inventory confirmation processing, ordering processing, accounting processing, shipping processing, and the like are performed on ordered products.

<Product Information Providing Method in Product Information Providing System>
Hereinafter, as a description of the product information providing method according to the present embodiment, a flow of a series of operations in the product information providing system S having the above configuration will be described.
FIG. 16 is a diagram showing a flow of a series of operations in the product information providing system S. FIG. 17 is a diagram showing an example of a display screen on the screen 2 of the information terminal 1 which is a foot size measuring device.

  First, the user operates the information terminal 1 functioning as a foot size measuring device to measure the size of the foot F as described above. Then, information on the measurement result of the foot size is transmitted from the information terminal 1 to the server 3. When the server 3 receives the information about the user's foot dimensions from the information terminal 1, the product selection unit 35 selects footwear (products) of a suitable size based on the information about the user's foot dimensions and the attributes of the user, The product display unit 36 transmits the product information to the information terminal 1 with the selected footwear as a recommended product. The information terminal 1 receives the product information and displays it on the screen 2.

  Specifically, as shown in FIG. 17, on the screen 2 of the information terminal 1, information on footwear having a size (15.5 cm) that is compatible with foot dimensions (for example, 15.4 cm) is recommended as product information. Displayed as a product. The product information displayed here includes a product image, model number, size, price, and the like.

<Others>
Although the configuration example of the foot size measurement program, the foot size measurement method, and the foot size measurement device of the present invention has been described above, the above embodiment is merely one of the specific configurations of the present invention, Configuration examples and application examples are also conceivable.

For example, in the present embodiment, the measurement marker is a straight line, but the present invention is not limited to this as long as it can identify a predetermined location of the measurement target as a mark.
Further, in the present embodiment, the measurement target is photographed by one camera, but the accuracy can be improved by photographing by a plurality of cameras.
Further, in the present embodiment, the size of the foot is measured on one still image, but the foot circumference may be measured by further photographing from another direction such as the front of the foot.
Further, when the measured numerical value exceeds a predetermined allowable range, the user may be notified by detecting the value and displaying an error. At the time of error detection, it is determined whether or not the measured numerical value exceeds a predetermined allowable range by comparing a target object of a predetermined size such as a coin and the acquired actual distance in the AR space. It may be.

DESCRIPTION OF SYMBOLS 1 Information terminal 2 Screen 3 Server 4 Affiliated sales site 5 Online mall 11 Storage unit 12 Imaging unit 13 Display unit 14 Communication unit 15 Planar recognition unit 16 Actual distance acquisition unit 17 Still image generation unit 18 Measurement marker adjustment unit 19 Dimension calculation unit 21 Area 22 shooting button 23 first measurement marker 24 second measurement marker 25 third measurement marker 26 fourth measurement marker 27 fifth measurement marker 31 user information database 32 product information database 33 user management unit 34 product management unit 35 product selection unit 36 Product display section 37 Sales processing section F Foot S Product information providing system N Communication line

Claims (5)

An information terminal equipped with an imaging unit,
Plane recognition means for recognizing a plane existing in the space projected by the imaging unit,
Actual distance acquisition means for acquiring an actual distance between any two coordinates on the plane;
Still image generation means for generating still image data by capturing a still image including a foot arranged in a predetermined area on the plane by the imaging unit,
A position of a first measurement marker which is a movable mark on the still image data generated by the still image generating means, and which specifies a position of a tip portion of a most protruding finger of the toes. Measurement marker adjusting means capable of adjusting the position of the second measurement marker for specifying the position of the most protruding part of the heel of the foot,
The distance between the first measurement marker and the second measurement marker whose position has been adjusted by the measurement marker adjustment means is applied to the actual distance acquired by the actual distance acquisition means to measure the size of the foot. A foot size measurement program characterized by functioning as a size calculation means for calculating a foot size. The measurement marker adjustment unit is a movable straight line on the still image data generated by the still image generation unit, and the position of the tip of the most prominent finger of the toes and the heel of the foot The position of the third measurement marker connecting the position of the most protruding part of the
The dimension calculating means includes a distance between an intersection of the third measurement marker with the first measurement marker and an intersection of the second measurement marker, the position of which is adjusted by the measurement marker adjusting means, and The foot size measurement program according to claim 1, wherein the foot size is calculated by applying the actual distance acquired by the acquisition unit and measuring the actual distance. The measurement marker adjustment unit is a movable mark on the still image data generated by the still image generation unit, and specifies a position of a part that protrudes most inward in the width direction of the foot. The position of the fourth measurement marker and the position of the fifth measurement marker for specifying the position of the portion most protruding outward in the foot width direction of the foot are each adjustable,
The dimension calculation unit applies the actual distance acquired by the actual distance acquisition unit to the distance between the fourth measurement marker and the fifth measurement marker whose position has been adjusted by the measurement marker adjustment unit, and measures the distance. The foot size measuring program according to claim 1 or 2, wherein: An information terminal equipped with an imaging unit,
A plane recognition step of recognizing a plane existing in the space projected by the imaging unit,
An actual distance obtaining step of obtaining an actual distance between any two coordinates on the plane;
A still image generation step of generating a still image data by capturing a still image including a foot arranged in a predetermined area on the plane by the imaging unit;
A position of a first measurement marker that is a movable mark on the still image data generated in the still image generation step and that specifies the position of the tip of the most prominent finger of the toes. A measurement marker adjusting step capable of adjusting a position of a second measurement marker for specifying the position of the most protruding part of the heel of the foot,
The distance between the first measurement marker and the second measurement marker whose position has been adjusted in the measurement marker adjustment step is applied to the actual distance acquired in the actual distance acquisition step to measure the distance of the foot. And a size calculating step of calculating a size of the foot. Plane recognition means for recognizing a plane existing in the space projected by the imaging unit,
Actual distance acquisition means for acquiring an actual distance between any two coordinates on the plane;
Still image generation means for generating still image data by capturing a still image including a foot arranged in a predetermined area on the plane by the imaging unit,
A position of a first measurement marker which is a movable mark on the still image data generated by the still image generating means, and which specifies a position of a tip portion of a most protruding finger of the toes. Measurement marker adjusting means capable of adjusting the position of the second measurement marker for specifying the position of the most protruding part of the heel of the foot,
The distance between the first measurement marker and the second measurement marker whose position has been adjusted by the measurement marker adjustment means is applied to the actual distance acquired by the actual distance acquisition means to measure the size of the foot. And a dimension calculating means for calculating the foot size.

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