WO2022094739A1

WO2022094739A1 - Projection system, method, and apparatus, and computer device

Info

Publication number: WO2022094739A1
Application number: PCT/CN2020/126043
Authority: WO
Inventors: 谢建军
Original assignee: 谢建军
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2022-05-12

Abstract

A projection system, method, and apparatus, and a computer device, relating to the technical field of projection devices. The projection system comprises: a projection module (110) configured to perform projection to form a projection region at a designated position; an identification module (120) configured to identify a scaling region selection event performed by a user in the projection region; and a processing module (130) configured to determine, according to the scaling region selection event, a target region to be displayed in scaled fashion, and to control the projection module (110) to output target projection information of the target region after the target region is scaled. The projection system enables a user to remotely operate projection scaling, eliminates tedious scaling operations of conventional projection modes, and greatly improves the efficiency of projection display.

Description

A projection system, method, apparatus and computer equipment

technical field

The present invention belongs to the technical field of projection equipment, and in particular relates to a projection system, method, device and computer equipment.

Background technique

In the pursuit of high efficiency and fast-paced modern office, as a new type of office equipment users can see projectors everywhere. The projector can not only be used in temporary meetings, technical lectures, network centers, command and monitoring centers, but also can be connected to computers, workstations, etc., or to VCRs, TVs, DVD players, and physical booths. Widely used large-screen imaging equipment.

The prior art projection equipment mainly irradiates light onto the image display element to generate an image, and then projects through a lens. When displaying, usually simply project the pre-edited image, or simply mark the projected content, such as scribing, circling, etc., but more other operations usually need to be controlled in conjunction with computer equipment And it needs to be edited or operated through computer equipment, such as zooming in and out of the projected image.

It can be seen that when the projection device in the prior art performs a scaling operation on a projected image, it needs to be operated by a computer device, and the operation is complicated and affects the display effect and efficiency.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a projection system, which aims to solve the problem that the prior art projection device needs to operate through a computer device when scaling the projected image, and the operation is complicated and affects the display effect and efficiency.

The embodiments of the present invention are implemented in this way, a projection system includes:

Projection module, used for projection, forming a projection area at a specified position;

an identification module, configured to identify a zoom area selection event implemented by the user in the projection area;

The processing module is configured to determine the target area to be zoomed and displayed according to the zoom area selection event, and control the projection module to output the zoomed target projection information of the target area.

Preferably, the manner in which the recognition module recognizes the zoom region selection event includes at least one or a combination of image recognition or induction recognition, wherein;

When the method for identifying the zoom region selection event by the identification module is image identification, the identification module is specifically used for:

Acquire an image of the user's selection operation in the projection area according to a user request, and identify the zoom area selection event according to the selection operation image;

When the identification module identifies the zoom area selection event by induction identification, the projection system further includes:

and a sensing module, which is arranged in the projection area and is used for sensing the zoom area selection event.

Preferably, the processing module determining the target area to be zoomed and displayed according to the zoom area selection event specifically includes:

extracting the selection feature of the zoom region selection event, the selection feature at least includes one or a combination of user selection marker points, selection marker lines and selection marker graphics;

The target area is generated and determined according to the selection feature.

Preferably, when the selection feature is a selection marker point, the processing module calculates, generates and determines the target area according to the selection feature, which specifically includes:

Calculate the area figure border formed by the point at the preset distance relative to the selection mark point by the selection marker point, and use the projection area within the area graph frame area as the target area; and/or

The preset point of the preset area graphic frame is coincident with the selection mark point, and the projection area within the frame range is used as the target area.

Preferably, when the selection feature is a selection marker line, the processing module calculating the projection area according to the selection feature specifically includes:

Taking an area within a preset distance relative to the preset direction of the selection marker line as the target area; and/or

The preset edge of the preset area graphic frame and the selection mark edge are overlapped, and the preset points of the overlapped edges are overlapped, and the projection area within the frame range is used as the target area.

Preferably, when the selection feature is a selection marker graphic, the processing module calculating the projection area according to the selection feature specifically includes:

Modifying the selection mark graphics, so that the selection mark graphics form regular or smooth feature graphics;

According to a preset rule, the area graph frame is calculated according to the feature graph, and the projection area within the range of the area graph frame is used as the target area. The preset rule at least includes taking the circumcircle or inscribed circle of the area graph frame, taking The two points with the farthest distance included in the frame of the regional graphics are one or a combination of several circles.

Preferably, the projection module includes at least one projection lens, and the projection module projects the target projection information at least by performing overlay projection of the target projection information in the current projection area or projecting the target projection information in the current projection area. Reproject independently of the projected subregion of the current projected region.

Another object of the embodiments of the present invention is to provide a projection method, comprising the following steps:

Identify the user's zoom area selection event in the projected area;

The target area to be zoomed and displayed is determined according to the zoom area selection event, and the projection module is controlled to output the zoomed target projection information of the target area.

Another object of the embodiments of the present invention is to provide a projection device, including:

an event identification unit, used to identify the user selecting an event in the zoom area of the projection area;

The projection information processing unit is configured to determine the target area to be zoomed and displayed according to the zoom area selection event, and control the projection module to output the zoomed target projection information of the target area.

Another object of the embodiments of the present invention is to provide a computer device, including a memory and a processor, where a computer program is stored in the memory, and when the computer program is executed by the processor, the processor causes the processor to execute the The steps of the projection method.

A projection system provided by an embodiment of the present invention judges and determines the operation that the user wants to perform by identifying the zoom area selection event in the projection area of the projection module, so as to determine the target area that the user wants to perform zoom display, and then processes The module controls the projection module to perform zoom projection of the target area, so that the user can operate the projection zoom remotely, get rid of the tedious operation and zoom of the traditional projection method, and greatly improve the efficiency of the projection display.

Description of drawings

1 is a structural block diagram of a projection system provided by an embodiment of the present invention;

2 is a flowchart of a projection method provided by an embodiment of the present invention;

3 is a structural block diagram of a projection apparatus provided by an embodiment of the present invention;

FIG. 4 is a block diagram of an internal structure of a computer device provided by an embodiment of the present invention.

Detailed ways

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

It will be understood that the terms "first", "second" and the like used in this application may be used herein to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish a first element from another element. For example, a first xx script could be referred to as a second xx script, and similarly, a second xx script could be referred to as a first xx script, without departing from the scope of this application.

Example 1

As shown in FIG. 1, it is a structural block diagram of a projection system provided in an embodiment of the present invention. The embodiment of the present invention is implemented in this way, a projection system, and the system includes:

The projection module 110 is used for projection to form a projection area at a specified position;

an identification module 120, configured to identify a zoom area selection event performed by the user in the projection area;

The processing module 130 is configured to determine the target area to be zoomed and displayed according to the zoom area selection event, and control the projection module 110 to output the zoomed target projection information of the target area.

Among them, the projection principle of the projection module 110 is mainly to generate an image by first irradiating the light on the image display element, and then project through the lens. And the reflective type that uses reflected light to generate images, no matter which type, the light of the projection lamp is divided into red, green and blue, and then images of various colors are generated, because the component itself can only display monochrome, Therefore, it is necessary to use 3 components to generate 3-color components, and then combine the 3-color images into one image through a prism, and finally project it onto the screen through a lens. It is mainly explained that the projection principle of the projection module 110 in the embodiment of the present invention can adopt the existing technology or be improved on the basis of the existing technology, mainly to enable it to be controlled by the processing module 130 to zoom the displayed target area. It is sufficient to perform scaling. The specific composition, shape and structure of the projection module 110 can be realized by those skilled in the art according to the above description and by making necessary improvements.

Among them, the designated position can be understood as a projection screen or a simple projection surface set when there is no dedicated projection screen, such as a wall or a board surface, etc.; the projection area mainly refers to the area covered by the image formed by the projection module 110 during projection, No further description is given here.

The zoom area selection event mainly refers to an operation performed when the user needs to zoom the projected content or projected area, such as an operation gesture, a description of a laser pointer, etc., which can be implemented by those skilled in the art according to the above description.

The processing module 130 mainly refers to a processing unit, such as a computer device that depends on a computer host, and will not be further described here.

Specifically, in this embodiment of the present invention, the manner in which the identification module 120 identifies the zoom region selection event includes at least one or a combination of image identification or induction identification, wherein;

When the method for identifying the zoom region selection event by the identifying module 120 is image identification, the identifying module 120 is specifically used for:

When the identification module 120 identifies the zoom area selection event by induction identification, the projection system further includes:

The sensing module 140, the sensing module 140 is arranged in the projection area, and is used for sensing the zoom area selection event.

Among them, the image recognition mainly detects whether a zoom area selection event occurs in the projection area by taking an image of the projection area. The image recognition and the specific hardware of the recognition module 120 are not further described here, and those skilled in the art can understand that Yes, the selection operation image is recorded and detected in real time to ensure quick response. It is mainly set for various selection operations formed in the projection area such as gestures or laser pointers.

Among them, the sensing recognition is mainly by sensing the operation of the user. In a preferred embodiment, the sensing module 140 can directly set the projection screen, and then project the projection area on the projection screen. The projection screen is a touch screen, then the touch screen can be directly used. The user's selection operation can be identified by the sensed operation of the user, which will not be further described here.

In this embodiment of the present invention, the processing module 130 determines, according to the zoom region selection event, that the target region to be zoomed and displayed specifically includes:

The target area is generated and determined according to the selection feature.

Among them, the selection feature mainly refers to the reference information that the user focuses on when forming the zoom area selection event. In the embodiment of the present invention, it is preferably set to include three types of selection mark points, selection mark lines, and selection mark graphics. Those skilled in the art can also choose other simple deformations. Specifically, selecting a marked point mainly means that the user directly marks a point in the projection area. The marking method is as described above, and will not be further described here. Similarly, selecting a marking line means that the user marks a point in the projection area. For a line, selecting a marked graphic means that the user marks a graphic in the projection area; the shapes of points, lines and graphics are not described further here, and those skilled in the art can make simple designs according to actual needs.

In this embodiment of the present invention, when the selection feature is a selection marker point, the processing module 130 calculates, generates and determines the target area according to the selection feature, specifically including:

Calculate the area graphic frame formed by the points at the preset distance relative to the selection mark point, and use the projection area within the range of the area graphic frame as the target area; specifically, for example, point a point in the projection area , and connecting the points at the specified distance from the point will form a specific graph, that is, the target area. The most common graph is a circle, and other shapes can also be set according to actual needs; and/or

The preset point of the preset area graphic frame is coincident with the selection mark point, and the projection area within the frame range is used as the target area; specifically, various graphics, such as circles, squares, etc. are preset, and then these A point of the graphic is used as a preset point. When the user marks a point in the projection area, the preset graphic is placed at the marked point, and the specified point on the graphic coincides with the marked point, then the graphic box The area belongs to the target area.

The above only describes two cases in which a marker point is selected as an example as a preferred embodiment, and other cases can also be simply modified and designed according to the above description, and will not be further described here.

In the embodiment of the present invention, when the selection feature is the selection mark line, the processing module 130 calculates the projection area according to the selection feature specifically includes:

The area within the preset distance relative to the preset direction of the selection marker line is used as the target area. Similarly, for the method of selecting marker lines, you can refer to the previous method of selecting marker points, but just replace the points with lines. , the method of selecting the marking line can select a long area; and/or

The preset edge of the preset area graphic frame is overlapped with the selection mark edge, and the preset points of the two overlapping edges are overlapped, and the projected area within the frame range is used as the target area. Similarly, refer to the previous Select the form of the marker point. In addition, the preset edge of the preset area graphic frame mainly refers to one side of the graphic, such as a square, then the position can be fixed by overlapping its side with the selected marker edge, and then combined with the coincidence of the preset points. , the target area can be determined.

In this embodiment of the present invention, when the selection feature is a selection mark graphic, the processing module 130 calculates the projection area according to the selection feature specifically includes:

In addition to the above description, the specific positioning method of the selection marker graphic can also be adjusted with reference to the method of selecting marker points and selecting marker lines, which will not be further described here.

Among them, modifying the selection mark graphic mainly refers to regularizing the selection mark graphic, such as converting it into a relatively rounded circle, square, triangle, etc., because the user may not be able to round the graphic when performing the operation, so After the correction, it is easy to be beautiful and easy to view, but it is not a necessary step, it is just a preference.

In this embodiment of the present invention, the projection module 110 includes at least one projection lens, and the projection module 110 projects the target projection information in a manner that at least includes overlaying the target projection information in the current projection area or projecting the target projection information. The target projection information is re-projected in a projection sub-region independent of the current projection region.

Wherein, the method of covering and projecting the target projection information in the current projection area only needs to enlarge and project the target projection information, and only one projection lens is needed; Re-projection of sub-regions requires independent projection, so two projection lenses are required, and more forms can be designed according to actual needs, which will not be further described here.

A projection system provided by an embodiment of the present invention judges and determines the operation that the user wants to perform by identifying the zoom area selection event in the projection area of the projection module 110, so as to determine the target area that the user wants to perform zoom display, and then The processing module 130 controls the projection module 110 to perform zoom projection of the target area, so that the user can remotely operate the projection zoom, get rid of the cumbersome operation and zoom operation of the traditional projection method, and greatly improve the efficiency of the projection display.

Example 2

As shown in Figure 2, in one embodiment, a projection method is proposed, which mainly includes the following steps:

Step S210, recognizing that the user selects an event in the zoom area of the projection area;

Step S220: Determine the target area to be zoomed and displayed according to the zoom area selection event, and control the projection module to output the zoomed target projection information of the target area.

Wherein, the implementation of step S210 may refer to the work flow and function description of the identification module 120 in the foregoing embodiments, and the implementation of step S220 may refer to the work flow and function description of the processing module 130 in the foregoing embodiments; those skilled in the art can understand Yes, the steps and processes that can be executed by the identification module 120 and the processing module 130 in the foregoing embodiments may all be included in the projection method in this embodiment, and will not be described further herein.

In a projection method provided by an embodiment of the present invention, an operation that the user wants to perform is determined and determined by identifying a zoom area selection event of the user in the projection area, so as to determine the target area that the user wants to perform zoom display, and then by performing the target The zoom projection of the area allows the user to operate the projection zoom remotely, which gets rid of the tedious operation and zoom of the traditional projection method, and greatly improves the efficiency of the projection display.

Example 3

As shown in FIG. 3, in one embodiment, a projection device is proposed, which mainly includes:

an event identification unit 310, configured to identify a user selection event in the zoom area of the projection area;

The projection information processing unit 320 is configured to determine the target area to be zoomed and displayed according to the zoom area selection event, and control the projection module to output the zoomed target projection information of the target area.

The implementation of the event identification unit 310 may refer to the workflow and function description of the identification module 120 in the preceding embodiment, and the implementation of the projection information processing unit 320 may refer to the workflow and function description of the processing module 130 in the preceding embodiment; Those skilled in the art can understand that the steps and processes that can be performed by the identification module 120 and the processing module 130 in the foregoing embodiments may be included in the event identification unit 310 and the projection information processing unit in this embodiment for processing. Further repetition of the description.

A projection device provided by an embodiment of the present invention judges and determines the operation that the user wants to perform by identifying the zoom area selection event of the user in the projection area, thereby determining the target area that the user wants to perform zoom display, and then by performing the target The zoom projection of the area allows the user to operate the projection zoom remotely, which gets rid of the tedious operation and zoom of the traditional projection method, and greatly improves the efficiency of the projection display.

Example 4

Another object of an embodiment of the present invention is to provide a computer device, including a memory and a processor, where a computer program is stored in the memory, and when the computer program is executed by the processor, the following steps are implemented:

Identify the user's zoom area selection event in the projected area;

Figure 4 shows an internal structure diagram of a computer device in one embodiment. As shown in FIG. 4 , the computer equipment includes a processor, a memory, a network interface, an input device, and a display screen connected through a system bus. Wherein, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and also stores a computer program, which, when executed by the processor, enables the processor to implement the projection method. A computer program may also be stored in the internal memory, and when the computer program is executed by the processor, the processor may execute the projection method. The display screen of the computer equipment may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment may be a touch layer covered on the display screen, or a button, a trackball or a touchpad set on the shell of the computer equipment, or It can be an external keyboard, trackpad or mouse, etc.

Those skilled in the art can understand that the structure shown in FIG. 4 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

It should be understood that although the steps in the flowcharts of the embodiments of the present invention are sequentially displayed in accordance with the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and these steps may be performed in other orders. Moreover, at least a part of the steps in each embodiment may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed and completed at the same time, but may be executed at different times. The order of execution is also not necessarily sequential, but may be performed alternately or alternately with other steps or sub-steps of other steps or at least a portion of a phase.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium , when the program is executed, it may include the flow of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other medium used in the various embodiments provided in this application may include non-volatile and/or volatile memory. Nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Road (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A projection system, characterized in that the system comprises:

Projection module, used for projection, forming a projection area at a specified position;

an identification module, configured to identify a zoom area selection event implemented by the user in the projection area;

The processing module is configured to determine the target area to be zoomed and displayed according to the zoom area selection event, and control the projection module to output the zoomed target projection information of the target area.
The projection system according to claim 1, characterized in that, the manner in which the identification module identifies the zoom region selection event comprises at least one or a combination of image identification or induction identification, wherein;

When the method for identifying the zoom region selection event by the identification module is image identification, the identification module is specifically used for:

Acquire an image of the user's selection operation in the projection area according to a user request, and identify the zoom area selection event according to the selection operation image;

When the identification module identifies the zoom area selection event by induction identification, the projection system further includes:

and a sensing module, which is arranged in the projection area and is used for sensing the zoom area selection event.
The projection system according to claim 1, wherein the processing module determining the target area to be zoomed and displayed according to the zoom area selection event specifically includes:

extracting the selection feature of the zoom region selection event, the selection feature at least includes one or a combination of user selection marker points, selection marker lines and selection marker graphics;

The target area is generated and determined according to the selection feature.
The projection system according to claim 3, wherein when the selection feature is a selection marker point, the processing module calculates, generates and determines the target area according to the selection feature, specifically comprising:

Calculate the area graphic frame formed by the points at a preset distance relative to the selection mark point, and use the projected area within the range of the area graphic frame as the target area; and/or

The preset point of the preset area graphic frame is coincident with the selection mark point, and the projection area within the frame range is used as the target area.
The projection system according to claim 3, wherein when the selection feature is a selection marker line, the processing module calculating the projection area according to the selection feature specifically includes:

Taking an area within a preset distance relative to the preset direction of the selection marker line as the target area; and/or

The preset edge of the preset area graphic frame and the selection mark edge are overlapped, and the preset points of the overlapped edges are overlapped, and the projection area within the frame range is used as the target area.
The projection system according to claim 3, wherein when the selection feature is a selection mark graphic, the processing module calculating the projection area according to the selection feature specifically includes:

Modifying the selection mark graphics, so that the selection mark graphics form regular or smooth feature graphics;

According to a preset rule, the area graph frame is calculated according to the feature graph, and the projection area within the range of the area graph frame is used as the target area. The preset rule at least includes taking the circumcircle or inscribed circle of the area graph frame, taking The two points with the farthest distance included in the frame of the regional graphics are one or a combination of several circles.
The projection system according to claim 1, wherein the projection module comprises at least one projection lens, and a manner of projecting the target projection information by the projection module at least comprises the step of projecting the target projection information in a current projection area Perform overlay projection or reproject the target projection information in a projection sub-area independent of the current projection area.
A projection method, comprising the following steps:

Identify the user's zoom area selection event in the projected area;

The target area to be zoomed and displayed is determined according to the zoom area selection event, and the projection module is controlled to output the zoomed target projection information of the target area.
A projection device, comprising:

an event identification unit, used to identify the user selecting an event in the zoom area of the projection area;

The projection information processing unit is configured to determine the target area to be zoomed and displayed according to the zoom area selection event, and control the projection module to output the zoomed target projection information of the target area.
A computer device, characterized by comprising a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the projection method described in claim 8 A step of.