JP2018189369A - Three-dimensional measurement apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional measurement apparatus which can be configured to be suitable for measuring the three-dimensional shape of a customer's hand at a shop front or within a store.SOLUTION: A base portion 14 having a reference surface 14a and a head portion 16 facing the reference surface 14a across a space 13 provided are connected via a connection portion 15. Inside the head portion 16, a light emitting unit 26 for irradiating sheet-shaped irradiation light 27 onto the reference surface 14a and a camera unit 24 for imaging the reference surface 14a so as to include a bright line 27a by the irradiation light 27 are fixed to a moving block 22. While the moving block 22 is moving in a first direction Y parallel to the reference surface 14a, first imaging data obtained by imaging the reference surface 14a on which a hand 90 is placed are sequentially acquired from a camera unit 24; three-dimensional shape data of the hand 90 are generated based on the sequentially acquired first imaging data; and the feature amount of the hand 90 is calculated based on the generated three-dimensional shape data.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a three-dimensional measurement apparatus, and more particularly to a three-dimensional measurement apparatus that measures a three-dimensional shape of a hand.

  Conventionally, a three-dimensional measuring apparatus for measuring a three-dimensional shape of a hand has been proposed. For example, the three-dimensional measuring apparatus shown in the schematic diagram of FIG. 15 inserts a hand into the insertion hole 81 formed in the housing 80, and the palm touches the transparent plate 82 disposed inside the housing 80. Put your hands to do. In this state, the back side and the palm side of the hand are imaged using the two CCD cameras 1 and 2 arranged above and below the transparent plate 82. The upper CCD camera 1 captures a three-dimensional image of the back side of the hand irradiated with slit light 6 at a predetermined interval. The lower CCD camera 2 captures a two-dimensional image including the palm-side palm (for example, see Patent Document 1).

JP 2004-3086 A

  The size of a ready-made glove is generally a dimension that goes around the hand circumference (hand circumference) shown in FIG. 14, that is, the start point of the life line and the position of 1/3 from the wrist side of the line connecting the base of the little finger and the wrist. Based on the above, each manufacturer has decided independently. When making pattern or full order gloves, it is necessary to measure the hands in detail. Since measurement is performed by a person using a measure, measurement errors are likely to occur. If there are many measuring items, it takes time to measure.

  Therefore, it is conceivable to measure the three-dimensional shape of the hand using a three-dimensional measuring device. When measuring the customer's hand at the store or in the store, the 3D measuring device looks good, is easy to carry, is easy to clean and maintain, and has a small psychological burden on the customer. It is desired that measurement results can be obtained in a short time and that the cost is low.

  However, the three-dimensional measuring apparatus in FIG. 15 rotates the mirror 7 with a complicated optical system including the cylindrical lens 4, the convex lens 5, and the mirror 7 in order to irradiate the slit light 6 with a predetermined interval using the light source 3. And a motor 8. This three-dimensional measuring apparatus needs to be carried carefully so as not to cause a positional shift of the optical system, and maintenance is troublesome. Further, in order to clean the transparent plate 82 with which the palm contacts, it is necessary to access the transparent plate 82 from the insertion hole 81 or to remove the cover of the housing 80 and access the transparent plate 82, so that the cleaning work is troublesome. is there. When measuring the three-dimensional shape of the hand, it is necessary to insert the hand into the housing 80 from the insertion hole 81, the hand cannot be seen during the measurement, and the progress of the measurement is not known. Therefore, the psychological burden on the person being measured is large. Depending on the position of the slit light 6, the angle at which the slit light 6 is irradiated and the angle at which the reflected light of the slit light 6 is incident on the CCD camera 1 are different. To get it, you need an expensive and high-performance computer. Due to the complexity of the configuration, it is difficult to reduce the price of the three-dimensional measuring device.

  In view of such circumstances, the present invention intends to provide a three-dimensional measuring device that can be configured to be suitable for measuring a three-dimensional shape of a customer's hand in a store or in a store.

  In order to solve the above problems, the present invention provides a three-dimensional measuring apparatus configured as follows.

  The three-dimensional measuring apparatus includes: (a) a base portion having a reference surface; a head portion disposed with a space between the base portion and facing the reference surface; and the base portion and the head portion coupled to each other. A housing including a connecting portion, i) a moving block disposed inside the head portion, i) moving in a first direction parallel to the reference plane, and ii) fixed to the moving block, A light emitting unit that irradiates a sheet of irradiation light so that a bright line that reflects brightly and extends in a second direction orthogonal to the first direction is formed on a reference surface; and iii) is fixed to the moving block; A moving body including a camera unit that images the reference plane so that the bright line is included, and (c) the moving block moves in the first direction, and the light emitting unit emits the irradiation light. And the camera unit is A first control unit that controls to image the reference plane; and (d) a measurement target is placed while the moving block is moving in the first direction under the control of the first control unit. The first imaging data obtained by the camera unit capturing the reference plane is sequentially acquired, and the three-dimensional shape data of the measurement target is generated based on the sequentially acquired first imaging data. A three-dimensional measurement unit that calculates a feature quantity of the shape of the measurement target based on the three-dimensional shape data.

  In the above configuration, when the moving block moves in the first direction, the light emitting unit and the camera unit move in the first direction while maintaining the mutual positional relationship. Bright lines are formed by irradiation light on the reference surface and the measurement target placed on the reference plane, and these bright lines move according to the position of the moving block, so that 3D shape data can be generated. it can.

  According to the above configuration, the housing can be designed with good appearance. Since the light emitting unit and the camera unit are fixed to the moving block, it can be easily carried. Since there is no need to surround the reference surface on which the hand is placed, the reference surface can be easily cleaned. The person to be measured can easily place his / her hand on the reference plane, can see the hand even during the measurement, and can know the progress of the measurement by the bright line, so the psychological burden on the person to be measured can be reduced. The angle at which the irradiated light is irradiated and the angle at which the reflected light is incident on the camera unit are always constant, and the position of the bright line is determined according to the position of the moving block. It is simple and the measurement can be completed in a short time. Since the configuration is simple, the price of the three-dimensional measuring device can be reduced.

  Therefore, the three-dimensional measuring apparatus having the above-described configuration is suitable for measuring the three-dimensional shape of the customer's hand in the store or in the store.

  Preferably, the reference plane is rectangular. The connecting portion is disposed along one side of the reference surface. Between the base part and the head part, an opening communicating with the space between the base part and the head part is formed along the other three sides of the reference surface.

  In this case, since the openings are formed along the three sides of the reference surface, it is easy to put in and out the hand and clean the reference surface. In addition, ambient light reaches the reference plane well.

  Preferably, (e) a second control in which the moving block moves in the first direction, the light emitting unit stops the irradiation of the irradiation light, and the camera unit images the reference plane. And (f) the camera unit moves the reference plane on which the measurement object is placed while the moving block is moving in the first direction under the control of the second control unit. Second imaging data is acquired a plurality of times, and the second imaging data acquired a plurality of times is combined to generate two-dimensional composite image data for displaying the two-dimensional composite image to be measured. And a dimensionally synthesized image data generation unit.

  In this case, even if there is unevenness in the state of illuminating the reference surface, it is possible to obtain a two-dimensional composite image with uniform brightness and color.

  More preferably, the first control unit performs control so that the moving block moves toward one side in the first direction. The second control unit controls the moving block to move toward the other side in the first direction.

  In this case, while the moving block moves to one side in the first direction, the first imaging for obtaining the three-dimensional shape data is performed, and while the moving block moves to the other side in the first direction, The second imaging for obtaining the two-dimensional image data is performed to generate the two-dimensional composite image data, and the feature amount is calculated based on the three-dimensional shape data obtained from the first imaging, or the measurement result image data Can be synthesized. Therefore, a measurement result can be obtained immediately after the first and second imaging are completed. Further, since the moving block returns to the initial position after the first and second imaging, the next measurement can be performed immediately.

  Preferably, (g) measurement for displaying a measurement result image in which a symbol indicating the feature amount is displayed in a position corresponding to the feature amount on the measurement target image based on the three-dimensional shape data. A measurement result image data synthesis unit for synthesizing the result image data is further provided.

  In this case, it is possible to easily confirm whether or not the feature amount is correctly calculated according to the definition by checking the degree of overlap between the hand image and the feature amount symbol.

  Preferably, (h) a paper pattern data generation unit that generates paper pattern data for producing a glove paper pattern based on the feature amount is further provided.

  In this case, it is easy to determine the dimensions of the pattern used for manufacturing pattern-order or full-order gloves by using the feature values extracted from the three-dimensional shape data obtained by measuring the three-dimensional shape of the hand. Can be designed.

  In addition, the present invention provides a computer, the first control unit, the three-dimensional measurement unit, the second control unit, the two-dimensional composite image data generation unit, and the measurement result of the three-dimensional measurement apparatus having the above-described configurations. A program for functioning as at least one of the image data synthesis units is provided.

  The three-dimensional measuring apparatus of the present invention can be configured to be suitable for measuring the three-dimensional shape of a customer's hand in a store or in a store.

FIG. 1 is a schematic diagram of a three-dimensional measuring apparatus. (Example 1) FIG. 2 is a perspective view of the three-dimensional measuring apparatus. (Example 1) FIG. 3 is an explanatory diagram of the basic principle of three-dimensional measurement. (Example 1) FIG. 4 is an explanatory diagram of the basic principle of three-dimensional measurement. (Example 1) FIG. 5 is a functional block diagram of the three-dimensional measuring apparatus. FIG. 6 is a flowchart of the operation. (Example 1) FIG. 7 is an image diagram of screen display. (Example 1) FIG. 8 is an image diagram of screen display. (Example 1) FIG. 9 is an image diagram of screen display. (Example 1) FIG. 10 is an image diagram of screen display. (Example 1) FIG. 11 is an image diagram of screen display. (Example 1) FIG. 12 is an image diagram of screen display. (Example 1) FIG. 13 is an image diagram of measurement results. (Example 1) FIG. 14 is an explanatory diagram of measuring. (Conventional example 2) FIG. 15 is a schematic diagram of a three-dimensional measuring apparatus. (Conventional example 1)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram conceptually showing a schematic configuration of the three-dimensional measuring apparatus 10. As shown in FIG. 1, the three-dimensional measuring apparatus 10 is connected to an apparatus body 11 and a computer 40.

  The apparatus main body 11 includes a housing 12 in which a base portion 14 and a head portion 16 that are opposed to each other with a space 13 are coupled to each other in a U-shaped cross section via a connecting portion 15. An upper surface 14 a of the base portion 14 facing the head portion 16 is a reference surface 14 a on which the hand 90 is placed. The reference surface 14a has a rectangular shape, and the connecting portion 15 is disposed along one side 14s among the four sides 14p to 14s of the reference surface 14a. Openings 13a, 13b, and 13c communicating with the space 13 between the base portion 14 and the head portion 16 are formed along the other three sides 14p to 14r.

  Since the openings 13a, 13b, and 13c are formed on three sides of the reference surface 14a, it is easy to put in and out the hand 90 and to clean the reference surface 14a. In addition, ambient light often reaches the reference surface 14a.

  FIG. 2A is a perspective view of the apparatus main body 11 as viewed from above. FIG. 2B is a perspective view of the apparatus main body 11 viewed from the side. In FIG. 2A and FIG. 2B, only the main part is shown. As shown in FIGS. 1, 2 (a) and 2 (b), a pair of slider rods 30 and a camera unit 24 and a light emitting unit 26 are fixed to the moving block 22 inside the head portion 16. A moving body 20, a timing belt 34 (not shown in FIG. 1) for moving the moving block 22, limit switches 32 and 33 (not shown in FIG. 1) for detecting the position of the moving block 22, and the like are arranged. ing.

  The pair of slider rods 30 are arranged in parallel with a first direction (Y direction, front-rear direction of the apparatus main body 11) parallel to the reference surface 14a of the base portion 14, and guide the moving block 22 to be movable. The moving block 22 is connected to the timing belt 34. When the timing belt 34 rotates, the moving block 22 is guided by the slider rod 30 in the first direction between the position indicated by the solid line and the position indicated by the chain line 21 in FIG. Moving.

  As shown in FIG. 1, the light emitting unit 26 is configured such that a bright line 27 a extending in a second direction (X direction, left-right direction of the apparatus main body) orthogonal to the first direction is formed on the reference surface 14 a. The irradiation light 27 is irradiated. The bright line 27a is a portion that is brightly reflected by the irradiation light 27 and is indicated by a thick line. For example, the light emitting unit 26 irradiates LED slit light. Alternatively, a laser beam moving at a high speed in a line shape is irradiated.

  The camera unit 24 images the reference plane 14a so that the bright line 27a is included. As illustrated in FIG. 2B, the direction 24 x captured by the camera unit 24 is inclined with respect to the irradiation light 27.

  3 and 4 are explanatory diagrams of the basic principle of three-dimensional measurement. FIG. 3 is an explanatory diagram of an image captured by the camera unit 24. A thick line indicates a portion where the bright line 27a is imaged. FIG. 4 is an explanatory diagram of a plane perpendicular to the irradiation light 27.

As shown in FIG. 4, the angle formed by the direction 24x captured by the camera unit 24 and the irradiation light 27 is θ. When the irradiation light 27 is applied to the point Q on the reference plane 14a shown in FIG. 4, in the captured image shown in FIG. 3, the images corresponding to the point Q are two points (x ₀ , 0), (x ₂ , 0) is a point (x ₁ , 0) on the reference line 18 passing through. When the irradiation light 27 is irradiated from the reference plane 14a shown in FIG. 4 to the point P having the height z, the image corresponding to the point P in the captured image shown in FIG. ₁ , δ).

Between δ, z and θ,
δ = z sinθ (1)
Because there is a relationship
z = δ / sinθ (2)
It becomes. When Expression (2) is used, the height z of the point P can be obtained from the coordinates (x ₁ , δ) in the captured image obtained by capturing the point P.

  The coordinate value x in the second direction (X direction) of the points P and Q can be obtained from the coordinate value in the direction of the reference line 18 in the captured image.

  Since the position of the bright line 27a in the first direction (Y direction) corresponds to the position of the moving block 22, from the position of the moving block 22 in the first direction (Y direction) when the points P and Q are imaged, The coordinate value y of the points P and Q in the first direction (Y direction) can be obtained.

  Since the moving block 22 to which the camera unit 24 and the light emitting unit 26 are fixed moves in parallel with the first direction (Y direction), the position of the reference line 18 does not change in the image captured by the camera unit 24. For example, if the imaging data is acquired from the camera unit 24 at a constant period while the moving block 22 moves at a constant speed in the first direction (Y direction), the difference between the coordinate values y in the first direction (Y direction). Can be made constant. Therefore, the calculation of the three-dimensional measurement is simple, and the measurement can be completed in a short time.

  As shown in FIG. 1, the computer 40 is connected to the apparatus main body 11. The computer 40 is, for example, a notebook personal computer, a desktop personal computer, a tablet PC, a server, or the like. The computer 40 may be connected to the apparatus main body 11 via a communication network such as the Internet. The function of the computer 40 may be distributed to terminals and servers connected via a communication network such as the Internet, and the apparatus main body 11 may be directly connected to the terminals. All or part of the functions of the computer 40 may be incorporated in the apparatus main body 11. Below, an example in case the computer 40 is the notebook personal computer 40 is demonstrated.

  The notebook personal computer 40 is connected to the apparatus main body 11 in a wired or wireless manner, controls the operation of the apparatus main body 11, performs a predetermined calculation based on image data obtained by imaging with the camera unit 24, and displays a measurement result and the like. To display.

  FIG. 5 is a functional block diagram of the three-dimensional measuring apparatus 10. As shown in FIG. 5, the control unit 50 and the data processing unit 60, the display unit 70, the input unit 72, the output unit 74, the communication unit 76, and the storage unit 78 connected to the control unit 50 are a notebook personal computer. 40. The display unit 70 is a display that displays images and characters. The input unit 72 is a keyboard, a touch panel, or the like. The output unit 74 outputs data to an external device such as a printer. The communication unit 76 is connected to a communication network such as the Internet and communicates with other computers and servers. The storage unit 78 is a memory such as a ROM or a RAM that stores data. A program for causing the notebook computer 40 to function as the control unit 50 and the data processing unit 60 is installed in the notebook computer 40.

  Further, the motor 36 of the apparatus main body 11, limit switches 32 and 32, the light emitting unit 26, and the camera unit 24 are connected to the control unit 50. The camera unit 24 is also connected to the data processing unit 60.

  The control unit 50 controls ON / OFF and forward / reverse rotation of the motor 36 based on detection signals from the limit switches 32, 32, and controls reciprocation of the moving block 22. The control unit 50 includes a first control unit 52, a second control unit 54, and an information management unit 56.

  The first control unit 52 sends a control signal for operating the motor 36, the light emitting unit 26, and the camera unit 24, the moving block 22 moves in the first direction, and the light emitting unit 26 emits the irradiation light 27. Irradiation is performed, and control is performed so that the camera unit 24 images the reference surface 14a.

  The second control unit 54 sends a control signal for operating the motor 36 and the camera unit 24 and a control signal for stopping the operation of the light emitting unit 26, the moving block 22 moves in the first direction, and emits light. Control is performed so that the unit 26 stops the irradiation of the irradiation light 27 and the camera unit 24 images the reference surface 14a. Note that the second control unit 54 may not be included.

  The information management unit 56 manages information on the result of three-dimensional measurement and the person to be measured.

  The camera unit 24 sends imaging data obtained by imaging the reference plane 14 a to the data processing unit 60.

  The data processing unit 60 includes a three-dimensional measurement unit 62, a measurement result image data synthesis unit 64, and a two-dimensional synthesis image data generation unit 66.

  The three-dimensional measuring unit 62 is configured such that the camera unit 24 images the reference plane 14 a on which the hand 90 is placed while the moving block 22 is moving in the first direction under the control of the first control unit 52. 1 is sequentially acquired, three-dimensional shape data of the hand is generated based on the sequentially acquired first imaging data, and a feature amount of the shape of the hand (for example, the hand shape based on the generated three-dimensional shape data) The enclosure length, the length of each finger, the length of each finger around the finger, the maximum length from the wrist to the fingertip, the thickness of the palm, etc.) are calculated, and the three-dimensional shape data and feature quantities are sent to the control unit 50. .

  The measurement result image data synthesis unit 64 displays a measurement result image in which a symbol indicating a feature amount is displayed on a hand image based on the three-dimensional shape data so as to overlap the position corresponding to the feature amount. The data is synthesized and the measurement result image data is sent to the control unit 50.

  In the two-dimensional composite image data generation unit 66, the camera unit 24 moves the reference plane 14a on which the hand 90 is placed while the moving block 22 is moving in the first direction under the control of the second control unit 54. The acquired second imaging data is acquired a plurality of times, and the second imaging data acquired a plurality of times is synthesized to generate two-dimensional synthesized image data for displaying a two-dimensional synthesized image of the hand 90. The dimension composite image data is sent to the control unit 50.

  The control unit 50 sends the measurement result image data to the display unit 70 to display the measurement result image or cause the printer to print the measurement result image via the output unit 74. Further, the three-dimensional shape data, the feature amount, the measurement result image data, and the two-dimensional composite image data are transmitted to the storage unit 78 and stored in the storage unit 78, or from the communication unit 76 via a communication network such as the Internet. Providing gloves to a server of a website that manages sales or a server of a website that manages the manufacture of gloves.

  Next, an example of the operation of the three-dimensional measurement apparatus 10 will be described with reference to FIGS. FIG. 6 is a flowchart of the operation of the three-dimensional measurement apparatus 10. 7 to 14 are image diagrams of display on the notebook computer 40.

  First, as advance preparations, the operator operates the notebook computer 40 to register information such as the name of the measurement subject while viewing the screen display shown in FIG. 7, or information on the measurement subject already registered. Or the person to be measured is specified. Next, when the operator confirms that the measurement target hand (for example, the left hand) is placed in a predetermined state (for example, a state where the fingers are slightly opened) at a predetermined position on the reference surface 14a. Then, select (click or tap) the “Measure” button displayed on the screen. As a result, the screen display is switched, and a “left-hand start” button and a “right-hand start” button are displayed. When the “left-hand start” button or the “right-hand start” button is selected, the three-dimensional measuring apparatus 10 has a three-dimensional shape. Start measurement.

  That is, as shown in FIG. 6, in the three-dimensional measuring apparatus 10, the light emitting unit 26 starts irradiation of the irradiation light 27 (S2), the camera unit 24 starts imaging (S4), and the motor 36 is in the forward direction. Rotating, the moving block 22 moves to one side in the first direction (for example, from the front to the back of the apparatus main body 11) (S6), and three-dimensional measurement is performed while the moving block 22 is moving (S8). ).

  During the three-dimensional measurement, the three-dimensional measurement unit 62 of the notebook computer 40 sequentially acquires the first image data captured by the camera unit 24, and the three-dimensional shape data of the hand based on the sequentially acquired first image data. Is generated. As shown in FIG. 8, the notebook personal computer 40 sequentially updates an image captured by the camera unit 24, that is, an image based on the first captured data acquired from the camera unit 24, together with precautions during imaging. indicate.

  When an area including the bright line 27a formed by the irradiation light 27 is displayed on the display, an image including the bright line 27a is displayed. Therefore, since the difference in brightness is large, the finger is displayed dark as it is, and the finger image is difficult to understand. In addition, some people may feel anxious because their fingers are cut by the bright line 27a. Therefore, as shown in FIG. 8, it is preferable to display an area that does not include the bright line 27a in the image captured by the camera unit 24 because the finger image is easy to understand and does not cause anxiety at the bright line 27a.

  When the limit switch 33 on the back side of the apparatus main body 11 is turned on (ON in S10), the motor 36 is stopped (S12), and the light emitting unit 26 stops the irradiation of the irradiation light 27 (S14).

  Next, the motor 36 rotates in the reverse direction, and the moving block 22 moves in the reverse direction (for example, from the back of the apparatus main body 11 to the front) (S16).

  While the moving block 22 is moving, the image taken by the camera unit 24, that is, the second image being sent from the camera unit 24 is displayed on the display of the notebook computer 40 together with the precautions during imaging, as in FIG. The images based on the imaging data are displayed while being sequentially updated. Further, the two-dimensional composite image data generation unit 66 of the notebook personal computer 40 acquires the second imaging data captured by the camera unit 24 a plurality of times, that is, the second imaging data sequentially transmitted from the camera unit 24. The second imaging data is acquired a plurality of times from the inside, and the second imaging data acquired a plurality of times is synthesized to generate two-dimensional synthesized image data for displaying a two-dimensional synthesized image of the hand (S18). In parallel with this, the three-dimensional measurement unit 62 of the notebook computer 40 calculates the feature amount based on the three-dimensional measurement data, and then the measurement result image data synthesis unit 64 of the notebook computer 40 performs the three-dimensional shape data. The measurement result image data for displaying the measurement result image in which the symbol indicating the feature amount is superimposed on the position corresponding to the feature amount is combined with the hand image based on (S20).

  When the limit switch 32 on the near side of the apparatus main body 11 is turned on (ON in S22), the motor 36 stops (S24), and the camera unit 24 stops imaging (S26). Then, the notebook computer 40 displays the measurement result on the display (S28).

  FIG. 9 is an example of a screen display of measurement results when both hands are measured.

  As shown in FIG. 9, the left-hand two-dimensional composite image and the three-dimensional image are displayed on the left side of the screen, and the right-hand two-dimensional composite image and the three-dimensional image are displayed on the right side of the screen.

  The two-dimensional synthesized image is a two-dimensional synthesized image obtained by synthesizing a plurality of images on the fingertip side and the wrist side obtained from the second imaging data, and is displayed based on the two-dimensional synthesized image data. The state of the hand, particularly the state of the fingertip, can be recorded by the two-dimensional composite image. Accordingly, it is possible to consider artificial nails when using the three-dimensional shape data of the hand. For example, the feature amount can be corrected according to the presence or absence of an artificial nail.

  When the reflectance and color of the reference surface 14a are made uniform and the second imaging data acquired a plurality of times is adjusted so that the reference surface 14a looks substantially the same, and then the two-dimensional composite image data is combined, the reference surface 14a Even if the illumination state is uneven, it is possible to obtain a two-dimensional composite image with uniform brightness and color.

  Since the surrounding light reaches the reference surface 14a through the large openings 13a, 13b, and 13c provided on the three sides of the housing 12, a two-dimensional composite image in which the hand can be seen normally is obtained without providing special illumination. be able to.

  When the “left hand start” button or the “right hand start” button displayed on the lower side of the screen is selected, the three-dimensional measuring apparatus 10 starts measuring a three-dimensional shape. The analysis screen displayed on the display can be switched by selecting the “to analysis screen” button displayed at the bottom of the screen and selecting a menu (not shown) of analysis items.

  10 and 11 are examples of the analysis screen. As shown in FIG. 10, a two-dimensional composite image and a three-dimensional image of the left hand are displayed. By selecting the “right hand” button or the “left hand” button, the screen display can be switched to the right hand or the left hand. By selecting the “OFF” button for the edge display and switching it to “ON”, it is possible to add a display of a contour line that emphasizes the contour of the hand to the three-dimensional image as shown in FIG.

  FIG. 12 shows another example of the analysis screen. As shown in FIG. 12, a three-dimensional image of the left hand, a two-dimensional composite image, and a numerical value of the feature amount are displayed.

  In the three-dimensional image, a symbol (arrow) indicating the position of the feature value is displayed so as to overlap the position corresponding to the feature value. That is, the symbols (arrows) connect feature points for measuring the feature values. By looking at the degree of overlap between the three-dimensional image and the feature amount symbol (arrow), it is possible to easily confirm whether or not the feature amount is correctly calculated according to the definition.

  The item of the feature amount includes, for example, the hand length, the first finger length, the second finger length, the third finger length, the fourth finger length, the fifth finger length, the first finger height, the second finger height, and the third finger. The height, the fourth finger height, the fifth finger height, the instep circumference, and the instep height. Items can be increased or decreased. In addition, although there may be an item for which a numerical value is not displayed, it is preferable to display the item and the numerical value for a feature amount for which a symbol (arrow) is displayed in the three-dimensional image.

  When the “print” button is selected, the measurement result is printed from the printer connected to the output unit 74.

  FIG. 13 is another example of the screen display. As shown in FIG. 13, a three-dimensional image of the hand viewed from above is shown in the upper left of the screen. In the upper right of the screen, a 3D image of the hand viewed from an oblique direction is displayed. In the lower left of the screen, the contour shape when the wrist side is viewed from the fingertip is shown. In the lower right of the screen, the contour shape when the hand is viewed from the side is shown.

  As described above, in the first step, while the moving block 22 moves to one side in the first direction (S6 to S10), the first imaging for obtaining the three-dimensional shape data is performed, and the three-dimensional shape is obtained. Shape data is generated (S8). After the first step, in the second step, while the moving block 22 moves to the other side in the first direction (S16 to S22), the second imaging for obtaining the two-dimensional image data is performed, Two-dimensional composite image data is generated (S18). In parallel with this, in the second step, the feature amount is calculated based on the three-dimensional shape data obtained from the first imaging, or the measurement result image data is synthesized.

  By such an order of steps, it is possible to shorten the time until a measurement result (feature shape feature value) is obtained. Further, since the moving block 22 returns to the initial position when the second step is completed, the next measurement can be performed immediately.

  The three-dimensional measuring apparatus 10 can design the housing 12 with a good appearance. Since the light emitting unit 26 and the camera unit 24 are fixed to the moving block 22, carrying can be facilitated. Since there is no need to surround the reference surface 14a on which the hand 90 is placed, the reference surface 14a can be easily cleaned. The person to be measured can easily place the hand 90 on the reference surface 14a, and the hand 90 can be seen during the measurement, and the progress of the measurement can be understood by the movement of the bright line 27a, so the psychological burden on the person to be measured is reduced. can do. The angle at which the irradiation light 27 is irradiated and the angle at which the reflected light is incident on the camera unit 24 are always constant, and the position of the bright line 27a is determined in accordance with the position of the moving block 22. The calculation of measurement is simple and the measurement can be completed in a short time. Since the configuration is simple, the price of the three-dimensional measuring apparatus 10 can be reduced.

  The distance L between the base portion 14 and the head portion 16 shown in FIG. 2B is preferably 50 mm or more, and more preferably 100 mm or more. When the distance L is 50 mm or more, putting in and out of the hand and cleaning of the reference surface 14a are facilitated. When the distance L is 100 mm or more, the surrounding light reaches the reference surface 14a well, and the hand placed on the reference surface 14a is easy to see. On the other hand, in order to reduce the size of the apparatus main body 11, the distance L is preferably 300 mm or less, and more preferably 200 mm or less. For example, when the distance L is about 150 to 200 mm, the height H of the apparatus main body 11 can be 600 mm or less.

  The feature amount of the hand obtained by measuring with the three-dimensional measuring apparatus 10 can be used for selection of off-the-shelf gloves, and for manufacturing pattern orders and full-order gloves.

  <Modification 1> A pattern data generation unit that generates pattern data for producing a pattern for a glove based on the feature amount may be added to the configuration of the first embodiment. The pattern data generation unit is configured to be included in the control unit 50 (see FIG. 5). The pattern data is stored in the storage unit 78 or provided to an external server or the like via the communication unit 76.

  By adding a pattern data generation unit, the feature size extracted from the 3D shape data obtained by measuring the 3D shape of the hand is used for the dimensions of the pattern used to manufacture pattern-order and full-order gloves. Therefore, it is possible to design easily.

  <Summary> The three-dimensional measuring apparatus described above can be configured to be suitable for measuring the three-dimensional shape of a customer's hand in a store or in a store.

  The present invention is not limited to the above embodiment, and can be implemented with various modifications.

  For example, instead of measuring one hand at a time, both hands may be measured together. The head unit 16 may be configured to move relative to the base unit 14 so as to be retracted from a position facing the reference surface 14a.

  Further, the measurement target is not limited to the hand, and can be used for, for example, three-dimensional measurement of the foot. By measuring the three-dimensional shape of the finger side, particularly the fingers and nails, from the ankle, it is possible to use the three-dimensional shape data and feature quantities in the beauty field and the medical field.

DESCRIPTION OF SYMBOLS 10 3D measuring apparatus 11 Apparatus main body 12 Housing 13 Space 13a, 13b, 13c Opening 14 Base part 14a Reference surface 15 Connection part 16 Head part 20 Moving body 22 Moving block 24 Camera unit 26 Light emitting unit 27 Irradiation light 27a Bright line 40 Computer ( laptop)
DESCRIPTION OF SYMBOLS 50 Control part 52 1st control part 54 2nd control part 60 Data processing part 62 Three-dimensional measurement part 64 Measurement result image data synthetic | combination part 66 Two-dimensional synthetic | combination image data generation part 90 hand

Claims (7)

A housing including a base portion having a reference surface, a head portion disposed with a space between the base portion and facing the reference surface, and a connecting portion coupling the base portion and the head portion.
A moving block that is disposed inside the head portion and moves in a first direction parallel to the reference plane, and a fixed block that is fixed to the moving block, reflects brightly on the reference plane, and is orthogonal to the first direction. A light emitting unit that emits sheet-shaped irradiation light so that a bright line extending in the direction of 2 is formed, and a camera unit that is fixed to the moving block and images the reference plane so that the bright line is included. A moving object,
A first control unit that controls the moving block to move in the first direction, the light emitting unit to emit the irradiation light, and the camera unit to image the reference plane;
While the moving block is moving in the first direction under the control of the first control unit, first imaging data obtained by the camera unit imaging the reference plane on which the measurement target is placed is sequentially applied. A tertiary that obtains and generates the three-dimensional shape data of the measurement target based on the first imaging data acquired sequentially, and calculates the feature quantity of the shape of the measurement target based on the generated three-dimensional shape data Former measuring unit,
A three-dimensional measuring device comprising: The reference plane is rectangular;
The connecting portion is disposed along one side of the reference plane,
An opening communicating with the space between the base portion and the head portion is formed between the base portion and the head portion along the other three sides of the reference surface. The three-dimensional measuring apparatus according to claim 1. A second controller that controls the moving block to move in the first direction, the light emitting unit to stop irradiating the irradiation light, and the camera unit to image the reference plane;
While the moving block is moving in the first direction under the control of the second control unit, second imaging data obtained by the camera unit imaging the reference plane on which the measurement target is placed is obtained. A two-dimensional composite image data generation unit configured to generate the two-dimensional composite image data for displaying the two-dimensional composite image acquired by combining the second imaging data acquired a plurality of times and the plurality of times;
The three-dimensional measuring apparatus according to claim 1, further comprising: The first control unit controls the moving block to move toward one side of the first direction;
The three-dimensional measurement apparatus according to claim 3, wherein the second control unit controls the moving block to move toward the other side in the first direction.   Measurement result image data for displaying a measurement result image in which a symbol indicating the feature amount is displayed superimposed on a position corresponding to the feature amount is combined with the measurement target image based on the three-dimensional shape data. The three-dimensional measurement apparatus according to claim 1, further comprising a measurement result image data synthesis unit.   The three-dimensional measurement according to any one of claims 1 to 5, further comprising a pattern data generation unit that generates pattern data for producing a pattern for a glove based on the feature amount. apparatus.   The computer according to any one of claims 1 to 6, the first control unit, the three-dimensional measurement unit, the second control unit, the two-dimensional composite image data generation unit, and measurement result image data A program for functioning as at least one of the combining units.