WO2016165379A1 - Projection method, device, apparatus and computer storage medium - Google Patents

Abstract

Provided are a projection method, device, apparatus and computer storage medium. The method comprises: acquiring an image of a projection interface, and extracting position information of the image of the projection interface; and performing a matching process between the acquired image of the projection interface and a sample image of a preset standard projection interface, and if the matching is successful, then performing projection in accordance with the position information according to the position information of the image of the projection interface.

Description

Projection method, device, device and computer storage medium Technical field

The invention relates to the field of intelligent projection, in particular to a projection projection method, device, device and computer storage medium.

Background technique

In the prior art, projection devices have become an indispensable tool and facility. However, when using the projection device, the user often encounters a phenomenon that the projection surface is not flat, the projection surface is broken, or an obstacle between the projection surface and the projection device causes the projection image to be unclear, the image is split, and the like, and the user needs to manually move the projection device. Position to find a suitable projection surface to ensure the integrity and clarity of the projected image.

Summary of the invention

Embodiments of the present invention provide a projection method, apparatus, device, and computer storage medium, which mainly solve the problem that a user needs to manually move a position of a projection device to find a suitable projection surface to ensure the clarity of the projected image.

To solve the above technical problem, the technical solution of the embodiment of the present invention is implemented as follows:

Embodiments of the present invention provide a projection method, including:

Collecting a projection interface picture, and extracting location information of the projection interface picture;

Matching the captured image of the projection interface with a preset standard projection interface sample;

After the matching is successful, according to the position information of the projection interface picture, the position information is used for projection.

The embodiment of the invention further provides a device for projecting, comprising: a sampling module and a processing module And control module;

The sampling module is configured to collect a picture of the projection interface, and extract location information of the picture of the projection interface;

The processing module is configured to pre-store a standard projection interface swatch, and perform matching processing on the projection interface image collected by the sampling module and the pre-stored standard interface swatch;

The control module is configured to perform projection according to the location information according to the collected location information of the projection interface picture after the processing module is successfully matched.

An embodiment of the present invention further provides a projection device, including a processor, a camera lens, and a projection lens;

The processor is configured to control the camera lens to collect a projection interface picture, and extract location information of the projection interface picture; perform matching processing on the collected projection interface picture and the pre-stored standard interface sample; The position information controls the projection lens to project.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the projection method according to the embodiment of the invention.

In the embodiment of the present invention, the captured projection interface picture is matched with the preset standard projection interface sample before the projection or the projection, so that the projection device is automatically controlled to determine according to the matching projection interface picture position information. The projection position is a good solution to the problem that when the projection surface is not flat or the projection image is unclear or the image is split, the user needs to manually move the projection device and manually adjust the projection surface to ensure the projection screen. Clear.

DRAWINGS

The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification, which is used together with the embodiments of the present application to explain the technical solutions of the present invention, and does not constitute a Limitations of the technical solutions of the present invention;

1 is a flow chart of a projection method according to an embodiment of the present invention;

2 is a schematic diagram of a projection apparatus according to an embodiment of the present invention;

3 is a schematic diagram of an acquisition module of a projection apparatus according to an embodiment of the present invention;

4 is a schematic diagram of a processing module of a projection apparatus according to an embodiment of the present invention.

detailed description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

Embodiment 1

1 is a flow chart of a projection method according to an embodiment of the present invention. As shown in FIG. 1, the method includes:

S10. Collect a picture of the projection interface, and extract location information of the picture of the projection interface;

S20: Perform matching processing on the collected projection interface image and a preset standard projection interface sample.

S30. After the matching is successful, according to the location information of the projection interface picture, the location information is used for projection.

In this embodiment, the collecting the projection interface picture comprises: collecting the projection interface picture by using the imaging mode.

Specifically, when the projection interface picture is acquired by the imaging method, the imaging area overlaps with the projection area of the projection apparatus.

As an implementation manner, the collecting the projection interface picture comprises: continuously or randomly acquiring the projection interface picture in a predetermined sequence in a predetermined area.

In another embodiment, the capturing the projection interface image comprises: collecting the projection interface image according to a preset angle or a preset time, where the preset angle or the preset time is automatically configured or manually adjusted.

In this embodiment, the location information of the projection interface picture includes: angle information and/or time information collected by the projection interface picture.

In this embodiment, the matching processing of the collected projection interface picture with a preset standard projection interface sample includes:

After collecting at least one projection interface picture, matching the collected at least one projection interface picture with a preset standard projection interface sample.

In this embodiment, the matching processing of the collected projection interface picture and the pre-stored standard projection interface sample includes:

Comparing the projection interface picture with the pre-stored standard interface sample;

Extracting a matching degree between the projection interface picture and the pre-stored standard interface sample piece;

Determining whether the matching degree is greater than or equal to a preset matching degree threshold;

When the matching degree is greater than or equal to the preset matching degree threshold, it is determined that the matching is successful.

In another implementation manner, the method further includes: when determining that the matching degree is less than the preset matching degree threshold, sending a prompting instruction.

For the detailed description, the projection apparatus described in the embodiment of the present invention selects a projection apparatus with a maximum rotation angle of the imaging lens of 30 degrees, and the imaging lens and the projection lens have the same resolution and pixels, and can be simultaneously linked with the same angle to Make sure the camera area and projection area are completely overlapping. Based on this, a projection method includes:

S10: Collecting a picture of the projection interface, and extracting location information of the image of the projection interface, the specific steps are:

As an embodiment, when detecting that the user turns on the projection device, in the region where the maximum rotation angle of the imaging lens is 30 degrees, the imaging lens automatically triggers to capture the projection interface image at a speed of 1 degree/s, that is, the projection image in the projection interface. picture of. In the horizontal 30 degree acquisition area, the camera lens first moves from the middle position to the left to the maximum rotation boundary line, and collects 30 pictures of the projection interface from left to right at a speed of 1 degree/s, and finally returns to the middle position; 30 degree acquisition area Inside, the camera lens first moves up from the middle position to the maximum rotation boundary line, and collects 30 pictures of the projection interface from top to bottom at a speed of 1 degree/s, and finally returns to the middle position.

A total of 60 images of the projection interface are collected as above, and the position information of the projection interface image is extracted. Of course, in the embodiment of the present invention, the number of collected images of the projection interface is not limited, and the number of collected images of the projection interface is at least one.

In another embodiment, the imaging lens performs the acquisition of the projection interface image by performing one acquisition by one rotation, or the acquisition of the projection interface image by one acquisition in one second.

S20: Perform matching processing on the collected projection interface image and the preset standard projection interface sample, specifically including:

As an implementation manner, preset a matching threshold of the projection interface picture and the pre-stored standard interface sample, for example, preset to 80%;

Through a small script of python, the collected 60 projection interface images and the pre-stored standard interface samples are sequentially matched and processed; the standard interface sample is also called an ideal interface image, for example, a projection in an ideal projection. Image image on the interface;

Determining whether the matching degree is greater than or equal to the matching degree threshold;

When the judgment result is that the matching degree is greater than or equal to the matching degree threshold, the matching is successful.

As another implementation manner, the collected projection interface picture may be acquired in a single time, that is, a projection interface picture is acquired, and the collected one projection interface picture is matched with a preset standard projection interface sample, and matched. For the process, reference may be made to the matching process of the previous embodiment, and details are not described herein again.

S30. After the matching is successful, according to the location information of the projection interface picture, the projection device is controlled to move to the determined position, and the specific steps are:

As an implementation manner, when the matching is successful, that is, when the matching degree is greater than or equal to the preset matching degree threshold, the projection device is controlled according to the position information of the projection interface picture, that is, the angle and/or time information during the acquisition. Projection at a determined position (angle and/or time).

In another embodiment, if the matching degree is less than a preset matching threshold, for example, less than a preset matching threshold of 80%, the method further includes:

S40: Send a prompt instruction, the prompting instruction is used to prompt the user to move the projection device to a suitable position. For example, the prompting instruction is: placing the projection device in a proper position to re-adjust the projection area.

The projection method of the embodiment of the present invention can be implemented by the user to automatically or manually trigger the flow shown in FIG.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the projection method according to the embodiment of the invention.

Embodiment 2

The embodiment of the present invention further provides a projection method. The embodiment of the present invention specifically introduces a projection method, and selects a projection device having an imaging function. The imaging function of the projection device can be realized by an imaging lens; The projection areas overlap. The projection method of this embodiment includes:

The camera lens collects a picture of the projection interface, such as a picture of the projected wall surface; and extracts position information of the picture of the projection interface;

Matching the captured image of the projection interface with a preset standard projection interface sample; the standard projection interface sample is, for example, a picture of an ideal projection wall;

After the matching is successful, the projection lens is controlled to be projected at a determined position according to the position information of the projection interface picture, that is, the angle and/or time information at the time of acquisition.

In another embodiment, the projection device has an imaging function, and the imaging function of the projection device can be realized by an imaging lens; the resolution and the pixel of the imaging lens and the projection lens are consistent, and can be simultaneously linked with the same angle;

Wherein, the camera lens and the projection lens can be realized by a non-mechanical method such as program control. The overlap of the imaging area and the projection area.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the projection method according to the embodiment of the invention.

Embodiment 3

2 is a schematic diagram of an apparatus for projecting according to an embodiment of the present invention, as shown in FIG. 2, including: a sampling module 1, a processing module 2, and a control module 3;

The sampling module 1 is configured to collect a picture of the projection interface, and extract location information of the picture of the projection interface;

The processing module 2 is configured to pre-store a standard projection interface swatch, and perform matching processing on the projection interface image collected by the sampling module 1 and the pre-stored standard interface swatch;

The control module 3 is configured to perform the projection according to the location information of the collected projection interface picture after the processing module 2 is successfully matched.

As an embodiment, the sampling module 1 is configured to acquire a projection interface picture by means of imaging; wherein the imaging area overlaps with the projection area of the projection apparatus.

As an embodiment, the sampling module 1 is further configured to continuously or single-collect the interface samples in a predetermined sequence in a predetermined area.

In another embodiment, the sampling module 1 is further configured to collect interface samples according to a preset angle or a preset time, and the preset angle or preset time is automatically configured or manually adjusted.

The preset angle is 1 degree, and the preset time is 1 second; the sampling module completes the acquisition by 1 degree/1 time or 1 second/1 time; or completes the acquisition by 1 degree/1s.

In this embodiment, the processing module is further configured to:

Preset match threshold;

Comparing the projection interface picture with the pre-stored standard interface sample; extracting a matching degree between the projection interface picture and the pre-stored standard interface sample;

Determining whether the matching degree is greater than or equal to a preset matching degree threshold;

When the matching degree is greater than or equal to the preset matching degree threshold, it is determined that the matching is successful.

In this embodiment, the projection interface picture information collected by the sampling module includes: angle information and/or time information collected by the projection interface picture at a time.

Further, FIG. 3 is a schematic diagram of an acquisition module of a projection apparatus according to an embodiment of the present invention; as shown in FIG. 3, the acquisition module 1 includes an acquisition unit 11 and an extraction unit 12;

The collecting unit 11 is configured to collect a picture of the projection interface;

The extracting unit 12 is configured to extract an angle or time information of the image of the projection interface by the collecting unit 11 each time;

Specifically, when detecting that the user turns on the projection device, the collecting unit (for example, the camera lens) automatically moves from the middle position to the left to the boundary of the imaging area, and then collects the projection interface image from left to right at a speed of 1 degree/s. 30 sheets, and finally return to the middle position; then move up from the middle position to the boundary line of the imaging area, and then collect 30 pictures of the projection interface from top to bottom at a speed of 1 degree/s, and finally return to the middle position, the projection interface The picture acquisition is completed, and a total of 60 pictures of the projection interface are collected. Of course, in the embodiment of the present invention, the number of collected images of the projection interface is not limited, and the number of collected images of the projection interface is at least one.

As another embodiment, the projection device may manually trigger a function of adjusting a projection area by a user.

As another implementation manner, the acquisition module 1 further includes an adjustment unit 13;

The adjusting unit 13 is configured to adjust a speed at which the collecting unit 11 collects a picture of the projection interface.

Specifically, the user may select a default acquisition speed of 1 degree/s to collect the projection interface picture; or manually adjust the collection speed by the adjustment unit 13.

4 is a schematic diagram of a processing module of a projection apparatus according to an embodiment of the present invention; as shown in FIG. 4, in the embodiment, the processing module 2 includes a receiving unit 21, a matching unit 22, and a conversion unit. 23 and sending unit 24;

The receiving unit 21 is configured to receive a picture of a projection interface collected by the sampling module 1;

The matching unit 22 is configured to preset a matching threshold, compare the projected interface picture with the pre-stored standard interface sample, and extract a matching degree between the projected interface picture and the pre-stored standard interface sample; determine whether the matching degree is greater than or Equivalent to a preset matching degree threshold; when the matching degree is greater than or equal to the preset matching degree threshold, determining that the matching is successful;

The converting unit 23 is configured to convert position information of the matching projection interface picture that the matching unit 22 matches successfully into an operation instruction;

The sending unit 24 is configured to send the operation instruction to the control module 3.

Specifically, the preset matching degree threshold is preset to 80%, for example, the matching unit 22 performs matching processing on the projection interface picture and the pre-stored standard interface sample sequentially through a small script of python; The standard interface sample is also called an ideal interface picture, for example, an image picture projected on an ideal projection interface.

Further, the control module 3 is configured to receive an operation instruction transmitted by the processing module 2 (specifically, the sending unit 24), and execute the operation instruction to control the acquiring unit 11 to move to a matching matching image position information of the projection interface. Determined location.

As another embodiment, the projection device may further include a display module 4;

When the matching unit 22 determines that the matching degree is less than the preset matching degree threshold, for example, less than the preset matching degree threshold of 80%, generating a prompting instruction based on the matching result;

The sending unit 24 is further configured to send the prompting instruction to the display module 4;

The display module 4 is configured to display the prompting instruction, and the prompting instruction is used to prompt the user to move the projection device to a suitable position.

In the embodiment of the present invention, the processing module 2 and the control module 3 in the projection device can be used by a central processing unit (CPU) and a digital signal processor in the projection device. (DSP, Digital Signal Processor) or can be edited The Field-Programmable Gate Array (FPGA) is implemented; the acquisition module 1 in the projection device can be implemented by the imaging lens in practical applications.

Embodiment 4

An embodiment of the present invention further provides a projection device, including a processor, a camera lens, and a projection lens;

The processor is configured to control the camera lens to collect a projection interface picture, and extract location information of the projection interface picture; perform matching processing on the collected projection interface picture and the pre-stored standard interface sample; The position information controls the projection lens to project.

In another embodiment, the resolution and the pixel of the imaging lens and the projection lens are consistent, and can be simultaneously linked with the same angle.

The embodiment of the invention provides a technical solution for solving the problem that the projection image is incomplete and unclear due to uneven projection surface, broken projection surface or obstacle between the projection surface and the projection device during projection. In the projection method in the embodiment of the present invention, in a predetermined area, the projection interface picture is continuously collected in a predetermined order, for example, from left to right or from top to bottom, and matched with the pre-stored standard projection interface image to match After successful, the projection device is controlled to move to the projection area determined by the matching successful projection interface picture position information for projection. This operation can be implemented after the first projection is automatically triggered, or automatically adjusted by the user during use to achieve the automatic adjustment of the projection area.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention is directed to a method, apparatus (system), and computer program in accordance with an embodiment of the present invention The flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

In the embodiment of the present invention, the captured projection interface picture is matched with the preset standard projection interface sample before the projection or the projection, so that the projection device is automatically controlled to determine according to the matching projection interface picture position information. The projection position is a good solution to the problem that when the projection surface is not flat or the projection image is unclear or the image is split, the user needs to manually move the projection device and manually adjust the projection surface to ensure the projection screen. Clear.

Claims (21)

A projection method comprising: Collecting a projection interface picture, and extracting location information of the projection interface picture; Matching the captured image of the projection interface with a preset standard projection interface sample; After the matching is successful, according to the position information of the projection interface picture, the position information is used for projection. The method of claim 1 , wherein the collecting the projection interface picture comprises: collecting the projection interface picture by using an imaging method. The method according to claim 2, wherein when the projection interface picture is acquired by the imaging method, the imaging area overlaps with the projection area of the projection device. The method of claim 1, wherein the collecting the projection interface picture comprises: continuously or randomly acquiring the projection interface picture in a predetermined sequence in a predetermined area. The method of claim 1 wherein said capturing a projection interface picture comprises: The projection interface picture is collected according to a preset angle or a preset time, and the preset angle or preset time is automatically configured or manually adjusted. The method of claim 5 wherein said predetermined angle is 1 degree; The acquisition and projection interface picture is completed by 1 degree/1 time. The method of claim 5 wherein said predetermined time is 1 second; The acquisition of the projection interface picture is completed in 1 second/1 time. The method of claim 1, wherein the matching processing of the captured projection interface picture with the pre-stored standard projection interface swatch comprises: Comparing the projection interface picture with the pre-stored standard interface sample; extracting a matching degree between the projection interface picture and the pre-stored standard interface sample; Determining whether the matching degree is greater than or equal to a preset matching degree threshold; When the matching degree is greater than or equal to the preset matching degree threshold, it is determined that the matching is successful. The method of claim 8, wherein the method further comprises: transmitting a prompting instruction when the matching degree is less than the preset matching degree threshold. The method of claim 1, wherein the matching processing of the captured projection interface picture with a preset standard projection interface swatch comprises: After collecting at least one projection interface picture, matching the collected at least one projection interface picture with a preset standard projection interface sample. The method according to any one of claims 1 to 10, wherein the location information of the projection interface picture comprises: The angle information and/or time information collected by the projection interface picture each time. A projection device comprising: a sampling module, a processing module and a control module; The sampling module is configured to collect a picture of the projection interface, and extract location information of the picture of the projection interface; The processing module is configured to pre-store a standard projection interface swatch, and perform matching processing on the projection interface image collected by the sampling module and the pre-stored standard interface swatch; The control module is configured to perform projection according to the location information according to the collected location information of the projection interface picture after the processing module is successfully matched. The projection apparatus according to claim 12, wherein the sampling module is configured to acquire a projection interface picture by an imaging method; wherein the imaging area overlaps with a projection area of the projection apparatus. The projection apparatus according to claim 12, wherein said sampling module is further configured to continuously or individually acquire the interface swatches in a predetermined order within a predetermined area. The projection device of claim 12, wherein the sampling module is further configured to acquire an interface sample according to a preset angle or a preset time, and the preset angle or preset time is automatically configured or manually adjusted. The projection device according to claim 15, wherein the preset angle is 1 degree, and the preset time is 1 second; The sampling module completes the acquisition by 1 degree/1 time or 1 second/1 time; Or complete 1 acquisition by 1 degree / 1s. The projection apparatus of claim 12, wherein the processing module is further configured to: Preset match threshold; Comparing the projection interface picture with the pre-stored standard interface sample; extracting a matching degree between the projection interface picture and the pre-stored standard interface sample; Determining whether the matching degree is greater than or equal to a preset matching degree threshold; When the matching degree is greater than or equal to the preset matching degree threshold, it is determined that the matching is successful. The projection device of claim 12, further comprising a display module; The display module is configured to display a prompt instruction when the processing module determines that the matching degree is less than the preset matching degree threshold. The projection device according to any one of claims 12 to 18, wherein the projection interface picture information collected by the sampling module comprises: The angle information and/or time information collected by the projection interface picture each time. A projection device comprising a processor, a camera lens and a projection lens; The processor is configured to control the camera lens to collect a projection interface picture, and extract location information of the projection interface picture; perform matching processing on the collected projection interface picture and the pre-stored standard interface sample; The position information controls the projection lens to project. A computer storage medium having stored therein computer executable instructions for performing the projection method of any one of claims 1 to 11.

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