CN112689085A - Method, device and system for identifying PPT screen projection area and electronic equipment - Google Patents
Method, device and system for identifying PPT screen projection area and electronic equipment Download PDFInfo
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- CN112689085A CN112689085A CN202011448951.7A CN202011448951A CN112689085A CN 112689085 A CN112689085 A CN 112689085A CN 202011448951 A CN202011448951 A CN 202011448951A CN 112689085 A CN112689085 A CN 112689085A
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Abstract
In the method, the device, the system and the electronic equipment for identifying the PPT screen projection region provided by the embodiment of the invention, the preview image information is acquired through the camera preview interface, the characteristic value is extracted from the preview image information, the current scene is identified according to the characteristic value, if the current scene comprises the PPT scene is identified, the PPT screen projection region corresponding to the PPT scene is calculated according to the characteristic value, the PPT screen projection region is displayed, and the PPT screen projection region is identified by identifying the PPT screen projection region, so that a user can display and identify the PPT screen projection region only by aiming at the PPT direction of a conference, thereby saving the complicated operation of the user and improving the user experience.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of region identification, in particular to a method, a device and a system for identifying a PPT screen projection region and electronic equipment.
[ background of the invention ]
At present, in various conferences of different sizes, when participants are interested in PPT content, the participants draw out a mobile phone to take a picture, usually slide with both hands to perform zooming-in and zooming-out operations so as to align the PPT content, and the operation process usually needs to be adjusted for many times, which is troublesome and inconvenient.
[ summary of the invention ]
In view of this, the invention provides a method, a device, a system and an electronic device for identifying a PPT screen projection region, so that a user can display and identify the PPT screen projection region only by aiming at a meeting PPT direction through identifying the PPT screen projection region, thereby saving the complicated operation of the user and improving the user experience.
In one aspect, an embodiment of the present invention provides a method for identifying a PPT screen projection area, including:
acquiring preview image information through a camera preview interface;
extracting a characteristic value from the preview image information, and identifying a current scene according to the characteristic value;
if the current scene is identified to comprise the PPT scene, calculating a PPT screen projection region corresponding to the PPT scene according to the characteristic value;
displaying the PPT screen projection area.
Optionally, before the displaying the PPT projection screen area, further comprising:
determining boundary information of the PPT screen projection area from the preview image information;
and adjusting the preview image information based on the adjustment parameters corresponding to the boundary information, so that the acquired preview image does not include other regions except the PPT screen projection region.
Optionally, the extracting feature values from the preview image information includes:
and processing the preview image information based on a neural network algorithm to obtain a characteristic value, wherein the characteristic value comprises PPT scene similarity.
Optionally, determining boundary information of the PPT screen projection region from the preview image information includes:
and determining boundary information of the PPT screen projection area from the preview image information based on the characteristic value, wherein the characteristic value comprises the outline shape and the screen projection area coordinate information.
Optionally, after the current scene is identified to include the PPT scene, the method further includes:
displaying confirmation information to prompt a user to determine whether the current scene includes a PPT scene;
and if the determined information of the user is received, continuing to execute the step of calculating the PPT screen projection region corresponding to the PPT scene according to the characteristic value.
In another aspect, an embodiment of the present invention provides a system for identifying a PPT screen projection area, where the system includes: an NPU processor and a camera unit;
the camera shooting unit acquires preview image information through a camera preview interface;
the NPU processor extracts a characteristic value from the preview image information and identifies a current scene according to the characteristic value; if the current scene is identified to comprise the PPT scene, calculating a screen projection region of a PPT projection region corresponding to the PPT scene according to the characteristic value;
the camera unit displays the PPT screen projection area.
Optionally, the NPU processor determines boundary information of the screen projection region of the PPT projection region from the preview image information; and adjusting the preview image information based on the adjustment parameters corresponding to the boundary information, so that the acquired preview image does not include other regions except the screen projection region of the PPT projection region.
In another aspect, an embodiment of the present invention provides a device for identifying a PPT screen projection area, where the device includes:
the acquisition module is used for acquiring preview image information through a camera preview interface;
the extraction module is used for extracting a characteristic value from the preview image information;
the identification module is used for identifying the current scene according to the characteristic value;
the characteristic value calculation module is used for calculating a screen projection region of a PPT projection region corresponding to the PPT scene according to the characteristic value if the current scene is identified to comprise the PPT scene;
and the display module is used for displaying the PPT screen projection area.
In another aspect, an embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, where when the program runs, a device in which the storage medium is located is controlled to execute the above method for identifying a PPT screen projection area.
In another aspect, an embodiment of the present invention provides an electronic device, which includes a memory and a processor, where the memory is configured to store information including program instructions, and the processor is configured to control execution of the program instructions, where the program instructions are loaded by the processor and execute the steps of the method for identifying a PPT screen projection area.
According to the technical scheme provided by the embodiment of the invention, the preview image information is acquired through the camera preview interface, the characteristic value is extracted from the preview image information, the current scene is identified according to the characteristic value, if the current scene comprises the PPT scene, the PPT screen projection region corresponding to the PPT scene is calculated according to the characteristic value, the PPT screen projection region is displayed, and the PPT screen projection region is identified, so that the PPT screen projection region can be displayed and identified only by aligning the PPT direction of the conference, therefore, the complicated operation of the user is saved, and the user experience is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is an architecture diagram of a system for identifying a PPT projection screen area according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for identifying a PPT screen projection area according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for identifying a PPT screen projection area according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Fig. 1 is an architecture diagram of a system for identifying a PPT projection screen area according to an embodiment of the present invention, as shown in fig. 1, the system 10 includes an NPU processor 11 and a camera unit 12.
The camera unit 11 is configured to obtain preview image information through a camera preview interface;
the NPU processor 12 is configured to extract a feature value from the preview image information, and identify a current scene according to the feature value; if the current scene is identified to comprise the PPT scene, calculating a PPT screen projection region corresponding to the PPT scene according to the characteristic value;
the camera unit 11 is used for displaying the PPT screen projection area.
Further, the NPU processor is also used for determining boundary information of the PPT screen projection area from the preview image information; and adjusting the preview image information based on the adjustment parameters corresponding to the boundary information, so that the acquired preview image does not include other regions except the PPT screen projection region.
Based on the PPT screen projection area identification system provided by the embodiment of the invention, the PPT screen projection area can be identified, so that a user can display and identify the PPT screen projection area only by aligning the PPT direction of the conference, thereby saving the complex operation of the user and improving the user experience. The method for identifying the PPT screen projection area provided by the embodiment of the invention is introduced as follows:
fig. 2 is a flowchart of a method for identifying a PPT screen projection area according to an embodiment of the present invention, as shown in fig. 2, the method includes:
In the embodiment of the invention, the camera in the camera unit can be aligned to the object to be shot so as to obtain the preview interface of the camera, and the image information previewed in the preview interface of the camera is used as the preview image information.
And 102, extracting a characteristic value from the preview image information, and identifying the current scene according to the characteristic value.
In this step, AI image processing may be performed on the preview image information to extract feature values, where the feature values include, but are not limited to, an outer frame shape, a format, a layout, text information, picture information, and PPT scene similarity. In addition, the feature value may further include other information, which is not limited in the embodiment of the present invention.
In the embodiment of the present invention, specifically, in the process of extracting the feature value from the preview image information, the preview image information may be processed based on a neural network algorithm to obtain the feature value, where the feature value includes a PPT scene similarity. For example, taking the feature value including the PPT scene similarity as an example, if the preview image information is processed based on a neural network algorithm and through a plurality of pre-trained scene models (including PPT scene models), and it is determined that the preview image information includes the PPT scene corresponding to the PPT scene model, the obtained PPT scene similarity is 90%, where the manner of determining the PPT scene similarity may be through determining the display content of the scene, and when the frame shape, for example, includes a rectangle, and the display content includes text information or picture information and the layout conforms to the PPT scene, it may be determined that the scene is the PPT scene, and the PPT scene similarity of the scene is calculated according to the specific gravity of each piece of information (display content, frame shape).
And 103, if the current scene is identified to comprise the PPT scene, calculating a PPT screen projection region corresponding to the PPT scene according to the characteristic value.
In this step, the feature value includes the outline shape and the screen projection area coordinate information.
In the embodiment of the invention, by taking the characteristic values including the shape of the outer frame and the coordinate information of the screen projecting area as an example, the position and the size of the PPT screen projecting area can be determined from the preview image through the characteristic values, so that the PPT screen projecting area corresponding to the PPT scene is calculated. Specifically, the obtained shape of the outer frame is the size of the PPT screen projection area, and the obtained coordinate information of the screen projection area is the position of the PPT screen projection area.
Further, after the step 103 identifies that the current scene includes the PPT scene, the method further includes: displaying confirmation information to prompt a user to determine whether the current scene includes a PPT scene; and if the determined information of the user is received, continuing to execute the step of calculating the PPT screen projection region corresponding to the PPT scene according to the characteristic value.
In the step, the confirmation information is sent to the user, so that the user can further judge the scene identified by the current system, and the problem that the user experience is poor due to the fact that the user defaults to adopt a mode of displaying a PPT screen projection region when PPT scene shooting is not needed is solved.
And step 104, displaying the PPT screen projection area.
In the embodiment of the invention, the PPT screen projection area is identified in the steps, so that a user can display the PPT screen projection area only by aligning the PPT direction of the conference, thereby saving the complex operation of the user and improving the user experience.
In an embodiment of the present invention, before displaying the PPT screen projection region in step 104, the method further includes:
and 104a, determining boundary information of the PPT screen projection area from the preview image information.
In this step, based on the position and size of the PPT projection screen region, the boundary information of the PPT projection screen region is determined from the preview image information, which is obtainable in step 103.
And step 104b, adjusting the preview image information based on the adjustment parameters corresponding to the boundary information, so that the acquired preview image does not include other areas except the PPT screen projection area.
In the embodiment of the present invention, in step 104b, the electronic device adjusts (zooms in and zooms out) its own camera, so that the boundary of the preview image information is the same as the boundary of the PPT projection region, that is, the preview image can only include the PPT projection region, thereby facilitating the shooting by the user.
It should be noted that the boundary of the preview image information may be adjusted to substantially coincide with the boundary of the PPT projection area, i.e., the boundary may have a difference of a predetermined range.
In the embodiment of the present invention, specifically, after the preview image information is adjusted based on the adjustment parameter corresponding to the boundary information, the NPU processor may determine a difference parameter (adjustment parameter corresponding to the boundary information) between a boundary of the preview image information and a boundary of the PPT projection area, and return the difference parameter to the shooting unit, so that the shooting unit may adjust the preview image information based on the difference parameter, and the obtained preview image may not include other areas except for the PPT projection area.
In an embodiment of the present invention, further, determining boundary information of the PPT screen projection area from the preview image information includes: and determining boundary information of the PPT screen projection area from the preview image information based on the characteristic value, wherein the characteristic value comprises the outline shape and the screen projection area coordinate information.
According to the technical scheme provided by the embodiment of the invention, the preview image information is acquired through the camera preview interface, the characteristic value is extracted from the preview image information, the current scene is identified according to the characteristic value, if the current scene comprises the PPT scene, the PPT screen projection region corresponding to the PPT scene is calculated according to the characteristic value, the PPT screen projection region is displayed, and the PPT screen projection region is identified, so that the PPT screen projection region can be displayed and identified only by aligning the PPT direction of the conference, therefore, the complicated operation of the user is saved, and the user experience is improved.
Fig. 3 is a schematic structural diagram of a device for identifying a PPT screen projection area according to an embodiment of the present invention, as shown in fig. 3, the device includes:
the acquisition module 11 is configured to acquire preview image information through a camera preview interface;
an extraction module 12, configured to extract a feature value from the preview image information;
the identification module 13 is configured to identify a current scene according to the feature value;
the calculating module 14 is configured to calculate, if it is identified that the current scene includes a PPT scene, a PPT screen projection region corresponding to the PPT scene according to the feature value;
and the display module 15 is used for displaying the PPT screen projection area.
In the embodiment of the present invention, the apparatus further includes: a determination module 16 and an adjustment module 17.
The determining module 16 is configured to determine boundary information of the PPT screen projection region from the preview image information;
the adjusting module 17 is configured to adjust the preview image information based on an adjusting parameter corresponding to the boundary information, so that the obtained preview image does not include other regions except the PPT screen projection region.
In the embodiment of the present invention, the extraction module 12 of the apparatus is specifically configured to process the preview image information based on a neural network algorithm to obtain a feature value, where the feature value includes a PPT scene similarity.
In this embodiment of the present invention, the determining module 16 of the apparatus is configured to determine boundary information of the PPT screen projection area from the preview image information based on the feature value, where the feature value includes an outer frame shape and screen projection area coordinate information.
In the embodiment of the present invention, the apparatus further includes:
the display module 15 is further configured to display a confirmation message to prompt the user to determine whether the current scene includes a PPT scene; and if the determined information of the user is received, continuing to execute the step of calculating the PPT screen projection region corresponding to the PPT scene according to the characteristic value.
According to the technical scheme provided by the embodiment of the invention, the preview image information is acquired through the camera preview interface, the characteristic value is extracted from the preview image information, the current scene is identified according to the characteristic value, if the current scene comprises the PPT scene, the PPT screen projection region corresponding to the PPT scene is calculated according to the characteristic value, the PPT screen projection region is displayed, and the PPT screen projection region is identified, so that the PPT screen projection region can be displayed and identified only by aligning the PPT direction of the conference, therefore, the complicated operation of the user is saved, and the user experience is improved.
The embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, where, when the program runs, a device where the storage medium is located is controlled to execute each step of the above embodiment of the method for identifying a PPT screen projection area, and for specific description, reference may be made to the above embodiment of the method for identifying a PPT screen projection area.
The embodiment of the invention provides electronic equipment which comprises a memory and a processor, wherein the memory is used for storing information comprising program instructions, the processor is used for controlling the execution of the program instructions, and the program instructions are loaded by the processor and executed to realize the steps of the method for identifying the PPT screen projection area. For a detailed description, reference may be made to the above-mentioned embodiments of the method for identifying PPT screen projection regions.
Fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 4, the electronic apparatus 4 of this embodiment includes: the processor 41, the memory 42, and the computer program 43 stored in the memory 42 and capable of running on the processor 41, where the computer program 43 is executed by the processor 41 to implement the method for identifying the PPT screen projection area in the embodiment, and in order to avoid repetition, details are not repeated herein. Alternatively, the computer program is executed by the processor 41 to implement the function applied to identify each model/unit in the PPT screen projection area device in the embodiment, which is not described herein again to avoid repetition.
The electronic device 4 includes, but is not limited to, a processor 41, a memory 42. Those skilled in the art will appreciate that fig. 4 is merely an example of the electronic device 4 and does not constitute a limitation of the electronic device 4 and may include more or fewer components than shown, or combine certain components, or different components, e.g., the electronic device 4 may also include input-output devices, network access devices, buses, etc.
The Processor 41 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 42 may be an internal storage unit of the electronic device 4, such as a hard disk or a memory of the electronic device 4. The memory 42 may also be an external storage device of the electronic device 4, such as a plug-in hard disk provided on the electronic device 4, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 42 may also include both internal storage units of the electronic device 4 and external storage devices. The memory 42 is used for storing computer programs and other programs and data required by the electronic device 4. The memory 42 may also be used to temporarily store data that has been output or is to be output.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for identifying a PPT screen projection area comprises the following steps:
acquiring preview image information through a camera preview interface;
extracting a characteristic value from the preview image information, and identifying a current scene according to the characteristic value;
if the current scene is identified to comprise the PPT scene, calculating a PPT screen projection region corresponding to the PPT scene according to the characteristic value;
displaying the PPT screen projection area.
2. The method as recited in claim 1, further comprising, prior to the displaying the PPT screen projection area:
determining boundary information of the PPT screen projection area from the preview image information;
and adjusting the preview image information based on the adjustment parameters corresponding to the boundary information, so that the acquired preview image does not include other regions except the PPT screen projection region.
3. The method of claim 1, wherein the extracting feature values from the preview image information comprises:
and processing the preview image information based on a neural network algorithm to obtain a characteristic value, wherein the characteristic value comprises PPT scene similarity.
4. The method as claimed in claim 2, wherein determining boundary information of the PPT screen projection region from the preview image information comprises:
and determining boundary information of the PPT screen projection area from the preview image information based on the characteristic value, wherein the characteristic value comprises the outline shape and the screen projection area coordinate information.
5. The method as claimed in claim 1, further comprising, after said identifying that the current scene includes a PPT scene:
displaying confirmation information to prompt a user to determine whether the current scene includes a PPT scene;
and if the determined information of the user is received, continuing to execute the step of calculating the PPT screen projection region corresponding to the PPT scene according to the characteristic value.
6. A system for identifying a PPT screen projection area, comprising: an NPU processor and a camera unit;
the camera shooting unit acquires preview image information through a camera preview interface;
the NPU processor extracts a characteristic value from the preview image information and identifies a current scene according to the characteristic value; if the current scene is identified to comprise the PPT scene, calculating a PPT screen projection region corresponding to the PPT scene according to the characteristic value;
the camera unit displays the PPT screen projection area.
7. The system as claimed in claim 6, wherein the NPU processor determines boundary information of the PPT screen projection region from the preview image information; and adjusting the preview image information based on the adjustment parameters corresponding to the boundary information, so that the acquired preview image does not include other regions except the PPT screen projection region.
8. An apparatus for identifying a PPT screen projection area, comprising:
the acquisition module is used for acquiring preview image information through a camera preview interface;
the extraction module is used for extracting a characteristic value from the preview image information;
the identification module is used for identifying the current scene according to the characteristic value;
the calculation module is used for calculating a PPT screen projection region corresponding to the PPT scene according to the characteristic value if the current scene is identified to comprise the PPT scene;
and the display module is used for displaying the PPT screen projection area.
9. A storage medium, comprising a stored program, wherein when the program runs, a device on which the storage medium is located is controlled to execute any one of the methods for identifying a PPT screen projection area from 1 to 7.
10. An electronic device comprising a memory for storing information including program instructions and a processor for controlling execution of the program instructions, characterized in that: the program instructions are loaded and executed by a processor to implement the method for identifying PPT screen projection areas as claimed in any one of claims 1 to 7.
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Application publication date: 20210420 |