CN117082294B - Video all-in-one machine switching method and system - Google Patents

Video all-in-one machine switching method and system Download PDF

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Publication number
CN117082294B
CN117082294B CN202311344238.1A CN202311344238A CN117082294B CN 117082294 B CN117082294 B CN 117082294B CN 202311344238 A CN202311344238 A CN 202311344238A CN 117082294 B CN117082294 B CN 117082294B
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displayed
video data
video
array
data source
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CN117082294A (en
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阙才武
黄鹏飞
钟维兴
唐永生
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Guangdong Shiteng Electronic Technology Co ltd
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Guangdong Shiteng Electronic Technology Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

The invention provides a video all-in-one machine switching method and a video all-in-one machine switching system, which belong to the technical field of electric communication, and the method comprises the following steps: s1: determining all video data sources to be displayed based on the display switching instruction, and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed; s2: based on the to-be-displayed picture partition array, performing mutual fusion correction on the original picture display parameters of all video frames of all to-be-displayed video data sources in the same frame number to obtain to-be-fused picture display parameters of each to-be-displayed video data source in each video frame; s3: acquiring switching video of the video all-in-one machine based on the to-be-displayed picture partition array and to-be-fused picture display parameters of all to-be-displayed video data sources in all video frames; the method is used for softly switching the video picture of a certain area in the video all-in-one machine capable of displaying in multiple areas, and the picture splitting degree and the deformation degree of the multi-area display are greatly reduced.

Description

Video all-in-one machine switching method and system
Technical Field
The invention relates to the technical field of telecommunication, in particular to a video all-in-one machine switching method and system.
Background
At present, the video all-in-one machine on the market can be externally connected with various video signal sources such as a computer, an advertising machine, a projector, an electronic whiteboard and a sound box, has the advantages of large-screen display and multi-input, can realize the function of simultaneously displaying video data of a plurality of video signal sources in a plurality of areas, and is highly integrated electronic circuit integrated display equipment.
However, in the existing video switching method of the video all-in-one machine capable of multi-region display, the display video of a certain region of the video all-in-one machine capable of multi-region display is often switched by performing overlay with the existing display screen of the video all-in-one machine after adaptively modifying the display size of the video data of the target video signal source to be switched. The switching method causes that the switched picture has obvious picture splitting feeling with the existing display picture of the video all-in-one machine, and the display size of the video data is simply and adaptively modified, so that the switched picture is deformed to a certain extent, and the display effect of the switched video is poor.
Therefore, the invention provides a video all-in-one machine switching method and a video all-in-one machine switching system.
Disclosure of Invention
The invention provides a method and a system for switching a video all-in-one machine, which are used for carrying out mutual fusion correction on original picture display parameters of all video frames of all video data sources to be displayed, which are contained in a video data source selection instruction, in the same frame number based on a picture partition array to be displayed, and fusing the picture display parameters of all the video data sources to be displayed, which are obtained after the mutual fusion correction, in all the video frames, so that the picture splitting degree and the deformation degree in the generated switching video of the video all-in-one machine are reduced, and soft switching of video pictures of a certain area in the video all-in-one machine capable of being displayed in multiple areas is realized.
The invention provides a video all-in-one machine switching method, which comprises the following steps:
s1: determining all video data sources to be displayed based on the display switching instruction, and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed;
s2: based on the to-be-displayed picture partition array, performing mutual fusion correction on the original picture display parameters of all video frames of all to-be-displayed video data sources in the same frame number to obtain to-be-fused picture display parameters of each to-be-displayed video data source in each video frame;
S3: and obtaining the switching video of the video all-in-one machine based on the to-be-displayed picture partition array and the to-be-fused picture display parameters of all to-be-displayed video data sources in all video frames.
Preferably, S1: based on the display switching instruction, determining all video data sources to be displayed, and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed, including:
s101: determining a plurality of video data sources to be displayed currently to be displayed based on a video data source selection instruction in a display switching instruction input by a user and an original video data source of the video all-in-one machine;
s102: determining a target display area of each video data source to be displayed based on a signal source display area selection instruction in a display switching instruction input by a user;
s103: and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the to-be-displayed video data sources and the corresponding target display areas.
Preferably, S2: based on the to-be-displayed picture partition array, performing mutual fusion correction on the original picture display parameters of all video frames of all to-be-displayed video data sources in the same frame number to obtain to-be-fused picture display parameters of each to-be-displayed video data source in each video frame, including:
Determining a standard pixel array of all video frames of each video data source to be displayed based on the original picture display parameters of all video frames of each video data source to be displayed contained in the video data source selection instruction;
determining a display area part array of each video data source to be displayed in the picture partition array to be displayed;
and based on the display area part array of each video data source to be displayed, performing mutual fusion correction on all standard pixel arrays of video frames of the video data sources to be displayed in the same frame number, and obtaining the display parameters of the frames to be fused of each video data source to be displayed.
Preferably, based on the display area partial array of each video data source to be displayed, performing mutual fusion correction on all standard pixel arrays of video frames of the same frame number of all video data sources to be displayed to obtain to-be-fused picture display parameters of each video data source to be displayed, including:
based on the display area partial arrays of each video data source to be displayed, performing array size adaptation operation on all standard pixel arrays of the video data source to be displayed, and obtaining all first pixel arrays of the video data source to be displayed;
Based on the row capacity and the column capacity of the partial array of the display area of the video data source to be displayed and the row capacity and the column capacity of the first pixel array of the video data source to be displayed in the current video frame, performing pixel size adaptation on the corresponding first pixel array to obtain a second pixel array of the video data source to be displayed in the current video frame;
and performing mutual fusion correction on the second pixel arrays of all video frames of all video data sources to be displayed in the same frame number to obtain the display parameters of the frames to be fused of each video data source to be displayed.
Preferably, based on the display area partial array of each video data source to be displayed, performing an array size adaptation operation on all standard pixel arrays of the video data source to be displayed, to obtain all first pixel arrays of the video data source to be displayed, including:
determining a first size value of each first preset size dimension corresponding to the array shape of the display area part array of each video data source to be displayed and a second size value of each second preset size dimension corresponding to the array shape of all standard pixel arrays of the current video data source to be displayed;
judging whether all first preset size dimensions of the array shape of the current display area part array and all second preset size dimensions of the array shape of the current standard pixel array are equal and similar to each other, if so, determining the ratio between the first size values and the second size values of all the first size values and the second size values of the current display area part array and the current standard pixel array, wherein the ratio belongs to the equal size dimension, and taking the ratio as the equal size dimension ratio;
Otherwise, screening at least one similar dimension group from all first preset dimension dimensions of the array shape of the current display area partial array and all second preset dimension dimensions of the array shape of the current standard pixel array based on the similar dimension list, wherein the similar dimension group comprises a first preset dimension and a second preset dimension;
the ratio between the first size value of the first preset size dimension and the second size value of the second preset size dimension in the adjacent dimension group is taken as the same-level dimension size ratio of the current display area partial array and the current standard pixel array;
and performing array size adaptation operation on all the standard pixel arrays corresponding to the video data source to be displayed based on the current display area partial array and the same-level dimension size ratio of all the standard pixel arrays corresponding to the video data source to be displayed, so as to obtain all the first pixel arrays of the video data source.
Preferably, based on the peer dimension size ratio of the current display area partial array and all standard pixel arrays corresponding to the video data source to be displayed, performing an array size adaptation operation on all standard pixel arrays corresponding to the video data source to be displayed, to obtain all first pixel arrays of the video data source, including:
Screening out a plurality of peer dimension ratios with aggregation degree not smaller than an aggregation degree threshold value from the peer dimension ratios of the current display area partial array and all standard pixel arrays corresponding to the video data source to be displayed, taking the peer dimension ratio as a peer dimension ratio cluster, and taking the average value of all peer dimension ratios in the peer dimension ratio cluster as the target dimension ratio of the current standard pixel array;
taking the ratio of each first size value to the target size ratio as the target size value of a second preset size dimension of the current standard pixel array, wherein the second preset size dimension of the corresponding first size value belongs to the same level dimension;
and filling or deleting pixels of all the standard pixel arrays of the video data source to be displayed based on the target size value of each second preset size dimension of all the standard pixel arrays of the video data source to be displayed, and obtaining all the first pixel arrays of the video data source to be displayed.
Preferably, based on the target size value of each second preset size dimension of all standard pixel arrays of the video data source to be displayed, pixel filling or deleting is performed on all standard pixel arrays of the video data source to be displayed, so as to obtain all first pixel arrays of the video data source to be displayed, including:
Taking the difference value between the target size value of each second preset size dimension of each standard pixel array of the video data source to be displayed and the corresponding second size value as the pixel change quantity of the current standard pixel array in the corresponding second preset size dimension;
based on a preset background recognition model, recognizing a background area of a current standard pixel array, and determining the importance of each single-connected area in the background area;
based on the pixel change quantity of all second preset size dimensions, performing pixel filling or deleting on a single communication area with the minimum importance degree in the current standard pixel array corresponding to the second preset size dimensions to obtain a first pixel array corresponding to the current standard pixel array;
and taking the first pixel arrays corresponding to all the standard pixel arrays of the video data source as all the first pixel arrays of the video data source.
Preferably, based on the row capacity and the column capacity of the display area partial array of the video data source to be displayed and the row capacity and the column capacity of the first pixel array of the video data source to be displayed in the current video frame, performing pixel size adaptation on the corresponding first pixel array to obtain the second pixel array of the video data source to be displayed in the current video frame, including:
When the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly larger than the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, all unit pixels contained in the corresponding first pixel array are segmented to obtain a second pixel array;
when the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly smaller than the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, all unit pixels contained in the corresponding first pixel array are combined adjacently to obtain a second pixel array;
when the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly equal to the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, the first pixel array is regarded as a second pixel array.
Preferably, S3: based on the to-be-displayed picture partition array and to-be-fused picture display parameters of all to-be-displayed video data sources in all video frames, obtaining a switching video of the video all-in-one machine, comprising:
based on the to-be-displayed picture partition array, fusing all to-be-fused picture display parameters of all to-be-displayed video data sources in the same video frame to obtain a switching picture of a corresponding video frame;
And generating switching video of the video all-in-one machine based on the switching pictures of all video frames.
The invention provides a video all-in-one machine switching system, which comprises:
the generating module is used for determining all video data sources to be displayed based on the display switching instruction and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed;
the correction module is used for carrying out mutual fusion correction on the original picture display parameters of all video frames of all video data sources to be displayed in the same frame number based on the picture partition array to be displayed, so as to obtain the picture display parameters to be fused of each video data source to be displayed in each video frame;
and the fusion module is used for obtaining the switching video of the video all-in-one machine based on the to-be-displayed picture partition array and the to-be-fused picture display parameters of all the to-be-displayed video data sources in all the video frames.
The invention has the beneficial effects different from the prior art that: based on the to-be-displayed picture partition array, the mutual fusion correction is carried out on the original picture display parameters of all video frames of all to-be-displayed video data sources contained in the video data source selection instruction in the same frame number, and the to-be-fused picture display parameters of all to-be-displayed video data sources obtained after the mutual fusion correction are fused, so that the picture splitting degree and the deformation degree in the generated switching video of the video all-in-one machine are reduced, and the soft switching of the video picture of a certain area in the video all-in-one machine capable of being displayed in multiple areas is realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a flow chart of a method for switching video all-in-one machine in an embodiment of the invention;
FIG. 2 is a flowchart of a switching method of a video all-in-one machine according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a switching system of a video all-in-one machine according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
the invention provides a video all-in-one machine switching method, which comprises the following steps of:
s1: determining all video data sources to be displayed (namely, all video data sources to be currently displayed in the video all-in-one machine) based on a display switching instruction (namely, an instruction input by a user and used for switching the display shape or/and the display position or/and the display data signal source of a single display area or a plurality of display areas in a multi-area display picture of the video all-in-one machine), and generating a to-be-displayed picture partition array of the video all-in-one machine (the to-be-displayed picture partition array is an array containing the distribution range of light emitting units of different display areas in a display picture of the video all-in-one machine) based on all the to-be-displayed video data sources, wherein the array is formed by the arrangement positions of all the light emitting units (the light emitting units are miniLED light emitting units) of the video all-in-one machine, the array is generally represented by an m×n matrix, wherein m represents the total number of rows of the light emitting units in the to-be-displayed picture partition array, and n represents the total number of columns of the light emitting units in the to-displayed picture partition array of the video all-in-one machine, the display picture area comprises a plurality of display areas of the video all the display areas, and the number of the lines of the display area does not exceed m;
S2: based on the to-be-displayed picture partition array, performing mutual fusion correction (i.e., performing size adaptation on display pictures of all to-be-displayed video data sources and corresponding display areas of a video all-in-one machine, and performing mutual correction on the picture display parameters of all to-be-displayed video data sources in all video frames with the same frame number (i.e., the picture display parameters of the original video data contained in the to-be-displayed video data sources are picture display parameters of the original video data in the to-be-displayed video data sources, such as pixel values, chromaticity values, gray values, brightness values and the like of each pixel point in a picture) of each to-be-displayed video data source (i.e., the picture display parameters of the to-be-displayed video data source, including the pixel values, the brightness values and the like of each pixel point to be displayed in the video all-in-one machine, of the to-be-displayed video data source, and the corresponding display areas of the video all-one machine) of all to-be-displayed video data sources are mutually corrected, so that the picture display parameters presented by the video all to the video data sources are unified, and the boundaries of adjacent display areas are not excessively large, and the boundary of adjacent display areas can be subjected to fuzzy processing or highlighting to explicit users as required, so as to obtain the picture display parameters of the to be-be displayed in each to be displayed in each video frame;
S3: based on the to-be-displayed picture partition array and to-be-fused picture display parameters of all to-be-displayed video data sources in all video frames, a switching video of the video all-in-one machine is obtained (namely, based on the to-be-displayed picture partition array, all to-be-displayed video data sources are pre-displayed in corresponding partial display picture arrays, pre-display results of all to-be-displayed video data sources in the same video frame are combined to obtain a complete pre-display video frame of the video all-in-one machine in the corresponding video frame, and the complete display video frames of all the video all-in-one machine are ordered and summarized, wherein the switching video is the video displayed to a user after the video all-in-one machine executes a display switching instruction, wherein row capacities of different rows of partial display picture arrays can be different, column capacities of different columns can be different, and the corresponding target display areas are round, oval or triangular.
Determining all video data sources to be displayed based on a display switching instruction, generating a to-be-displayed picture partition array based on all the video data sources to be displayed, and performing mutual fusion correction on original picture display parameters of all video frames of all the video data sources to be displayed, which are contained in a video data source selection instruction, in the same frame number based on the to-be-displayed picture partition array, so that the picture splitting degree and the deformation degree in the generated switching video of the video all-in-one machine are reduced, and fusing all the to-be-displayed video data sources obtained after the mutual fusion correction on to obtain the switching video in the to-be-fused picture display parameters of all the video frames, namely soft switching of video pictures of a certain area in the video all-in-one machine capable of multi-area display is realized.
Example 2:
based on example 1, S1: based on the display switching instruction, determining all video data sources to be displayed, and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed, referring to fig. 2, including:
s101: determining a plurality of video data sources to be displayed currently based on a video data source selection instruction (namely an instruction for selecting a video data source to be displayed to the video all-in-one machine after switching) in a display switching instruction input by a user and an original video data source (namely a video data source to be displayed on the video all-in-one machine before switching) of the video all-in-one machine;
s102: determining a target display area of each video data source to be displayed (namely, a display area of the video data source to be displayed in a display picture of the video all-in-one machine) based on a signal source display area selection instruction (namely, an instruction for selecting the display area of the video data source to be displayed in the display picture of the video all-in-one machine) in a display switching instruction input by a user;
s103: and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the to-be-displayed video data sources and the corresponding target display areas.
And determining all video data sources to be displayed and corresponding target display areas thereof to be displayed to the video all-in-one machine after the display switching instruction is executed based on the video data source selection instruction and the signal source display area selection instruction read in the display switching instruction, and utilizing the to-be-displayed picture partition array to represent all the determined video data sources to be displayed and the corresponding target display areas thereof so as to realize array numeralization of the target display areas of all the video data sources to be displayed.
Example 3:
based on example 1, S2: based on the to-be-displayed picture partition array, performing mutual fusion correction on the original picture display parameters of all video frames of all to-be-displayed video data sources in the same frame number to obtain to-be-fused picture display parameters of each to-be-displayed video data source in each video frame, including:
determining a standard pixel array of all video frames of each video data source to be displayed (namely an array of display parameters of all pixel points in a single video frame containing the video data source to be displayed, wherein the display parameters comprise pixel values, brightness values, chromaticity values, gray values and the like of the single pixel points, and the array is represented by a matrix, for example, the value of the ith row and the jth column in the matrix for representing the pixel values in the standard pixel array is the pixel value of the ith row and the jth column of the pixel points in the single video frame);
Determining a display area part array of each video data source to be displayed in the picture partition array to be displayed (namely, a part array corresponding to a target display area of a single video data source to be displayed in the picture partition array to be displayed, wherein the relative size and the position of the target display area in a complete display picture of the video all-in-one machine are the same as those of the corresponding display area part array in the picture partition array to be displayed);
and based on the display area part array of each video data source to be displayed, performing mutual fusion correction on all standard pixel arrays of video frames of the video data sources to be displayed in the same frame number, and obtaining the display parameters of the frames to be fused of each video data source to be displayed.
According to the process, the original picture display parameters of the video data source to be displayed are subjected to array numerical expression, the standard pixel array is generated, the display area part array of the video data source to be displayed in the picture partition array to be displayed is taken as a reference, the standard display arrays of all video frames of all the video data sources to be displayed in the same frame number are subjected to mutual fusion correction, the numerical correction of the picture correction process is realized, the size and the position of the display areas of different video data sources to be displayed are considered, and the generated display effect of the display parameters of the different video data sources to be fused in the video all-in-one machine is reduced in the splitting sense and the deformation degree.
Example 4:
based on embodiment 3, based on the display area partial array of each video data source to be displayed, performing mutual fusion correction on all standard pixel arrays of video frames of the video data sources to be displayed in the same frame number to obtain display parameters of frames to be fused of each video data source to be displayed, including:
based on the display area partial arrays of each video data source to be displayed, performing array size adaptation operation on all standard pixel arrays of the video data source to be displayed (namely, performing operation on the standard pixel arrays so that the size of a display picture corresponding to the standard pixel arrays can be adapted to a target display area corresponding to the display area partial arrays), and obtaining all first pixel arrays of the video data source to be displayed (namely, obtaining pixel arrays after the standard pixel arrays are subjected to array size adaptation operation);
performing pixel size adaptation (pixel size adaptation is an operation of making the row capacity of the first pixel array the same as the row capacity of the corresponding display area part array and making the column capacity of the first pixel array the same as the column capacity of the corresponding display area part array) on the basis of the row capacity (the row capacity of the first pixel array is the total number of pixel points included in each column of the first pixel array) and the column capacity (the column capacity of the first pixel array is the total number of pixel points included in each row of the first pixel array) of the display area part array of the video data source to be displayed, and obtaining a second pixel array (i.e., the pixel size adaptation is performed on the first pixel array after the new pixel array is performed) of the video data source to be displayed;
And performing mutual fusion correction on the second pixel arrays of all video frames of all video data sources to be displayed in the same frame number to obtain the display parameters of the frames to be fused of each video data source to be displayed.
Based on the display area partial array, the standard pixel array of the video data source to be displayed sequentially performs array size adaptation operation and pixel size adaptation operation, and then performs mutual fusion correction on the second pixel array obtained after the pixel size adaptation operation, so that the display parameters of the picture to be fused are obtained, and the cracking sense and the deformation degree of the display effect of the finally obtained display parameters of the picture to be fused in the video all-in-one machine are reduced.
Example 5:
based on embodiment 4, an array size adaptation operation is performed on all standard pixel arrays of the video data source to be displayed based on the display area partial array of each video data source to be displayed, to obtain all first pixel arrays of the video data source to be displayed, including:
determining a first dimension value (for example, a length or a width (corresponding to a row capacity and a column capacity of the display area part array) of each first preset dimension (for example, a rectangle, a positive direction, a circle, an ellipse, a triangle, etc.) corresponding to an array shape of each display area part array of the video data source to be displayed, and a second dimension value (for example, an array shape of all standard pixel arrays of the video data source to be displayed generally only has a rectangle and a positive direction; a second preset dimension is a dimension measuring a dimension of an array shape of different standard pixel arrays, for example, a length or a width (corresponding to a row capacity and a column capacity of the standard pixel array)) of each second preset dimension (for example, a length or a width (corresponding to a row capacity and a column capacity of the standard pixel array) of a rectangle corresponding to a first preset dimension of the rectangle;
Judging whether all first preset size dimensions of the array shape of the current display area partial array and all second preset size dimensions of the array shape of the current standard pixel array are equal to each other (judging by searching a preset peer list, for example, the array shape of the current display area partial array can be rectangular, the corresponding first preset size dimensions are long or wide, the array shape of the current standard pixel array is rectangular, the corresponding second preset size dimensions are long or wide, the first preset size dimensions of the two are equal to each other) and are similar (the similar meaning is that the difference value of the size values corresponding to the two is within a preset threshold value), if so, determining all first size values and second size values of the current display area partial array and the current standard pixel array belong to the peer dimensions (the peer dimensions are the first preset size dimension and the second preset size dimension which are judged to be equal to each other), and taking the peer dimension as the peer dimension ratio;
otherwise, based on the similar dimension list (i.e., a list including preset similar dimension groups, for example, the length or width of a rectangle and the side length of a square can be set as similar dimension groups, and angles and measurement standards of two dimension measurement corresponding to two dimension measurement corresponding shape dimensions are relatively similar), at least one similar dimension group is screened out from all first preset dimension dimensions of the array shape of the current display area part array and all second preset dimension dimensions of the array shape of the current standard pixel array, wherein the similar dimension group includes a first preset dimension and a second preset dimension;
The ratio between the first size value of the first preset size dimension and the second size value of the second preset size dimension in the adjacent dimension group is taken as the same-level dimension size ratio of the current display area partial array and the current standard pixel array;
and performing array size adaptation operation on all the standard pixel arrays corresponding to the video data source to be displayed based on the current display area partial array and the same-level dimension size ratio of all the standard pixel arrays corresponding to the video data source to be displayed, so as to obtain all the first pixel arrays of the video data source.
In this embodiment, the dimension ratio of the same level is a ratio of a dimension value of a first preset dimension and a dimension value of a second preset dimension, which are the same level of each other, representing the array shape of the display area partial array and the array shape of the current standard pixel array.
The above discussion calculates the peer dimension ratio of the current display area partial array and the current standard pixel array by judging whether the array shape of the current display area partial array and the array shape of the current standard pixel array are the same or not, so that when the original display picture shape of the data source to be displayed and the shape of the target display area in the video all-in-one machine are the same or different, the ratio of the first dimension value of the first preset dimension and the second dimension value of the second preset dimension which are respectively the same as the peer dimension ratio is regarded as the peer dimension ratio, so that the subsequent dimension adaptation operation based on the peer dimension ratio can furthest reserve the original video data of the video data source to be displayed, and the picture deformation degree caused by the dimension adaptation process is reduced.
Example 6:
based on embodiment 5, performing an array size adaptation operation on all standard pixel arrays corresponding to video data sources to be displayed based on the current display area partial array and the peer dimension size ratio of all standard pixel arrays corresponding to video data sources to be displayed, to obtain all first pixel arrays of the video data sources, including:
screening out a plurality of peer dimension ratios with aggregation degree not smaller than an aggregation degree threshold (namely a preset screening threshold for screening aggregation degree according to the aggregation degree of the peer dimension ratio clusters) from the peer dimension ratio of the current display area part array and all standard pixel arrays corresponding to the video data source to be displayed, taking the peer dimension ratio as a peer dimension ratio cluster (namely a cluster containing all peer dimension ratios with aggregation degree not smaller than the aggregation degree threshold), taking the average value of all peer dimension ratios in the peer dimension ratio cluster as the target dimension ratio of the current standard pixel array (namely the ratio of a target dimension value after array dimension adaptation is carried out on the standard pixel array to the dimension value of the corresponding display area part array);
taking the ratio of each first size value to the target size ratio as a target size value of a second preset size dimension of the current standard pixel array, which belongs to the same level dimension as the corresponding first size value (namely, the size value after array size adaptation is carried out on the standard pixel array);
And filling or deleting pixels of all the standard pixel arrays of the video data source to be displayed based on the target size value of each second preset size dimension of all the standard pixel arrays of the video data source to be displayed, and obtaining all the first pixel arrays of the video data source to be displayed.
In this embodiment, the aggregation degree of the plurality of peer dimension sizes is calculated as follows:
taking the difference value and the average value ratio of each peer dimension ratio calculated at present and the average value of a plurality of peer dimension ratios calculated at present as the deviation degree of the peer dimension ratio, and taking the average value of the deviation degree of a plurality of peer dimension ratios calculated at present as the whole deviation degree;
the difference between 1 and the overall degree of deviation is taken as the degree of aggregation for a plurality of co-dimensional sizes.
The above process uses the average value of a plurality of same dimension ratios with higher aggregation degree in all the same-level dimension ratios as a target dimension, so that the total number of pixel points for filling or deleting executed in the last step is controlled to be as small as possible, and the deformation of the original display picture of the video data source to be displayed is reduced.
Example 7:
based on embodiment 6, based on the target size value of each second preset size dimension of all standard pixel arrays of the video data source to be displayed, pixel filling or deleting is performed on all standard pixel arrays of the video data source to be displayed, so as to obtain all first pixel arrays of the video data source to be displayed, including:
Taking the difference value between the target size value of each second preset size dimension of each standard pixel array of the video data source to be displayed and the corresponding second size value as the pixel change quantity of the current standard pixel array in the corresponding second preset size dimension (namely, the quantity of pixel points needing to be filled or deleted, when the target size value is larger than the second size value, the filling is needed, and when the target size value is smaller than the second size value, the deletion is needed);
based on a preset background recognition model, recognizing a background area of a current standard pixel array, and determining the importance of each single-connected area in the background area;
based on the pixel change quantity of all second preset size dimensions, performing pixel filling or deleting on a single communication area with the minimum importance degree in the current standard pixel array corresponding to the second preset size dimensions to obtain a first pixel array corresponding to the current standard pixel array;
and taking the first pixel arrays corresponding to all the standard pixel arrays of the video data source as all the first pixel arrays of the video data source.
In this embodiment, the preset background recognition model is obtained by training samples of a plurality of pixel arrays marked with a partial array of the background area in advance, and the preset background recognition model can recognize the partial pixel array corresponding to the background area in the pixel arrays.
In this embodiment, the importance of the single connected region may also be determined by the physical category of the single connected region, and the physical category of the single connected region is first identified based on a preset identification model, for example, a face image, a body part, a wall background, a sky background, etc., and then the importance corresponding to different physical lists in the importance list is searched, so as to determine the importance of the current single connected region.
And filling or deleting pixels in the single communication region with the minimum importance degree according to the determined importance degree of all the single communication regions in the background region in the standard pixel array, so that when filling or deleting pixels in all the standard pixel arrays of the video data source to be displayed, the regions which do not influence the visual effect and the video content are changed, and the deformation degree caused in the size adaptation process is further controlled.
Example 8:
based on embodiment 7, based on the row capacity and the column capacity of the display area partial array of the video data source to be displayed and the row capacity and the column capacity of the first pixel array of the video data source to be displayed in the current video frame, performing pixel size adaptation on the corresponding first pixel array to obtain the second pixel array of the video data source to be displayed in the current video frame, including:
When the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly larger than the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, all unit pixels contained in the corresponding first pixel array are segmented to obtain a second pixel array;
when the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly smaller than the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, all unit pixels contained in the corresponding first pixel array are combined adjacently to obtain a second pixel array;
when the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly equal to the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, the first pixel array is regarded as a second pixel array.
In this embodiment, all the unit pixels included in the corresponding first pixel array are segmented or combined adjacently, and the background area of the first pixel array is determined based on a preset background recognition model, then the importance of the single-connected area in the background area is determined, and the pixels in the single-connected area with the minimum importance are segmented or combined adjacently, so that the row capacity and the column capacity of the segmented or combined second pixel array are corresponding to the row capacity or the column capacity of the display area partial array of the video data source to be displayed.
The number of the pixel points of the first pixel array is adjusted in the process, so that the pixel points are adapted to the row capacity and the column capacity of the display area partial array of the video data source to be displayed, and the final step of size adaptation of the original picture of the video data source to be displayed and the target display area is realized.
Example 9:
based on example 1, S3: based on the to-be-displayed picture partition array and to-be-fused picture display parameters of all to-be-displayed video data sources in all video frames, obtaining a switching video of the video all-in-one machine, comprising:
based on the to-be-displayed picture partition array, fusing all to-be-fused picture display parameters of all to-be-displayed video data sources in the same video frame to obtain a switching picture of a corresponding video frame;
and generating switching video of the video all-in-one machine based on the switching pictures of all video frames.
The above steps realize the fusion generation of the switching pictures, and generate the switching video to be displayed after the video all-in-one machine executes the display switching instruction.
Example 10:
the invention provides a video all-in-one machine switching system, referring to FIG. 3, comprising:
the generating module is used for determining all video data sources to be displayed based on the display switching instruction and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed;
The correction module is used for carrying out mutual fusion correction on the original picture display parameters of all video frames of all video data sources to be displayed in the same frame number based on the picture partition array to be displayed, so as to obtain the picture display parameters to be fused of each video data source to be displayed in each video frame;
and the fusion module is used for obtaining the switching video of the video all-in-one machine based on the to-be-displayed picture partition array and the to-be-fused picture display parameters of all the to-be-displayed video data sources in all the video frames.
Determining all video data sources to be displayed based on a display switching instruction, generating a to-be-displayed picture partition array based on all the video data sources to be displayed, and performing mutual fusion correction on original picture display parameters of all video frames of all the video data sources to be displayed, which are contained in a video data source selection instruction, in the same frame number based on the to-be-displayed picture partition array, so that the picture splitting degree and the deformation degree in the generated switching video of the video all-in-one machine are reduced, and fusing all the to-be-displayed video data sources obtained after the mutual fusion correction on to obtain the switching video in the to-be-fused picture display parameters of all the video frames, namely soft switching of video pictures of a certain area in the video all-in-one machine capable of multi-area display is realized.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (6)

1. The switching method of the video all-in-one machine is characterized by comprising the following steps of:
s1: determining all video data sources to be displayed based on the display switching instruction, and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed;
s2: based on the to-be-displayed picture partition array, performing mutual fusion correction on the original picture display parameters of all video frames of all to-be-displayed video data sources in the same frame number to obtain to-be-fused picture display parameters of each to-be-displayed video data source in each video frame;
s3: acquiring switching video of the video all-in-one machine based on the to-be-displayed picture partition array and to-be-fused picture display parameters of all to-be-displayed video data sources in all video frames;
wherein, step S2: based on the to-be-displayed picture partition array, performing mutual fusion correction on the original picture display parameters of all video frames of all to-be-displayed video data sources in the same frame number to obtain to-be-fused picture display parameters of each to-be-displayed video data source in each video frame, including:
Determining a standard pixel array of all video frames of each video data source to be displayed based on original picture display parameters of all video frames of each video data source to be displayed contained in a video data source selection instruction input by a user;
determining a display area part array of each video data source to be displayed in the picture partition array to be displayed;
based on the display area part array of each video data source to be displayed, performing mutual fusion correction on all standard pixel arrays of video frames of the video data sources to be displayed in the same frame number to obtain the display parameters of the frames to be fused of each video data source to be displayed;
based on the display area partial array of each video data source to be displayed, performing mutual fusion correction on all standard pixel arrays of video frames of the video data sources to be displayed in the same frame number to obtain to-be-fused picture display parameters of each video data source to be displayed, including:
based on the display area partial arrays of each video data source to be displayed, performing array size adaptation operation on all standard pixel arrays of the video data source to be displayed, and obtaining all first pixel arrays of the video data source to be displayed;
Based on the row capacity and the column capacity of the partial array of the display area of the video data source to be displayed and the row capacity and the column capacity of the first pixel array of the video data source to be displayed in the current video frame, performing pixel size adaptation on the corresponding first pixel array to obtain a second pixel array of the video data source to be displayed in the current video frame;
performing mutual fusion correction on the second pixel arrays of all video frames of all video data sources to be displayed in the same frame number to obtain the display parameters of the frames to be fused of each video data source to be displayed;
based on the display area partial array of each video data source to be displayed, performing an array size adaptation operation on all standard pixel arrays of the video data source to be displayed to obtain all first pixel arrays of the video data source to be displayed, including:
determining a first size value of each first preset size dimension corresponding to the array shape of the display area part array of each video data source to be displayed and a second size value of each second preset size dimension corresponding to the array shape of all standard pixel arrays of the current video data source to be displayed;
judging whether all first preset size dimensions of the array shape of the current display area part array and all second preset size dimensions of the array shape of the current standard pixel array are the same and whether differences of the first size values and the second size values corresponding to the same size dimensions are within a preset threshold value or not, if yes, determining the ratio between the first size values and the second size values of all the same-level dimensions of the current display area part array and the current standard pixel array, and taking the ratio as the same-level dimension size ratio;
Otherwise, screening at least one similar dimension group from all first preset dimension dimensions of the array shape of the current display area partial array and all second preset dimension dimensions of the array shape of the current standard pixel array based on the similar dimension list, wherein the similar dimension group comprises a first preset dimension and a second preset dimension;
the ratio between the first size value of the first preset size dimension and the second size value of the second preset size dimension in the adjacent dimension group is taken as the same-level dimension size ratio of the current display area partial array and the current standard pixel array;
based on the current display area partial array and the same-level dimension size ratio of all standard pixel arrays corresponding to the video data source to be displayed, performing array size adaptation operation on all standard pixel arrays corresponding to the video data source to be displayed, and obtaining all first pixel arrays of the video data source;
based on the same-level dimension ratio of the current display area partial array and all standard pixel arrays corresponding to the video data source to be displayed, performing array dimension adaptation operation on all standard pixel arrays corresponding to the video data source to be displayed to obtain all first pixel arrays of the video data source, including:
Screening out a plurality of peer dimension ratios with aggregation degree not smaller than an aggregation degree threshold value from the peer dimension ratios of the current display area partial array and all standard pixel arrays corresponding to the video data source to be displayed, taking the peer dimension ratio as a peer dimension ratio cluster, and taking the average value of all peer dimension ratios in the peer dimension ratio cluster as the target dimension ratio of the current standard pixel array;
taking the ratio of each first size value to the target size ratio as the target size value of a second preset size dimension of the current standard pixel array, wherein the second preset size dimension of the corresponding first size value belongs to the same level dimension;
based on the target size value of each second preset size dimension of all standard pixel arrays of the video data source to be displayed, performing pixel filling or deleting on all standard pixel arrays of the video data source to be displayed to obtain all first pixel arrays of the video data source to be displayed;
the process of calculating the aggregation degree of the plurality of dimension sizes in the same level is as follows:
taking the difference value and the average value ratio of each peer dimension ratio calculated at present and the average value of a plurality of peer dimension ratios calculated at present as the deviation degree of the peer dimension ratio, and taking the average value of the deviation degree of a plurality of peer dimension ratios calculated at present as the whole deviation degree;
The difference between 1 and the overall degree of deviation is taken as the degree of aggregation for a plurality of co-dimensional sizes.
2. The video all-in-one switching method according to claim 1, wherein S1: based on the display switching instruction, determining all video data sources to be displayed, and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed, including:
s101: determining a plurality of video data sources to be displayed currently to be displayed based on a video data source selection instruction in a display switching instruction input by a user and an original video data source of the video all-in-one machine;
s102: determining a target display area of each video data source to be displayed based on a signal source display area selection instruction in a display switching instruction input by a user;
s103: and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the to-be-displayed video data sources and the corresponding target display areas.
3. The method for switching a video all-in-one machine according to claim 1, wherein, based on the target size value of each second preset size dimension of all standard pixel arrays of the video data source to be displayed, performing pixel filling or deleting on all standard pixel arrays of the video data source to be displayed to obtain all first pixel arrays of the video data source to be displayed, comprising:
Taking the difference value between the target size value of each second preset size dimension of each standard pixel array of the video data source to be displayed and the corresponding second size value as the pixel change quantity of the current standard pixel array in the corresponding second preset size dimension;
based on a preset background recognition model, recognizing a background area of a current standard pixel array, and determining the importance of each single-connected area in the background area;
based on the pixel change quantity of all second preset size dimensions, performing pixel filling or deleting on a single communication area with the minimum importance degree in the current standard pixel array corresponding to the second preset size dimensions to obtain a first pixel array corresponding to the current standard pixel array;
and taking the first pixel arrays corresponding to all the standard pixel arrays of the video data source as all the first pixel arrays of the video data source.
4. The method for switching a video all-in-one machine according to claim 3, wherein the step of performing pixel size adaptation on the corresponding first pixel array based on the row capacity and the column capacity of the display area partial array of the video data source to be displayed and the row capacity and the column capacity of the first pixel array of the video data source to be displayed in the current video frame to obtain the second pixel array of the video data source to be displayed in the current video frame includes:
When the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly larger than the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, all unit pixels contained in the corresponding first pixel array are segmented to obtain a second pixel array;
when the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly smaller than the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, all unit pixels contained in the corresponding first pixel array are combined adjacently to obtain a second pixel array;
when the row capacity or the column capacity of the display area partial array of the video data source to be displayed is correspondingly equal to the row capacity or the column capacity of the first pixel array of the video data source to be displayed in the current video frame, the first pixel array is regarded as a second pixel array.
5. The video all-in-one switching method according to claim 1, wherein S3: based on the to-be-displayed picture partition array and to-be-fused picture display parameters of all to-be-displayed video data sources in all video frames, obtaining a switching video of the video all-in-one machine, comprising:
Based on the to-be-displayed picture partition array, fusing all to-be-fused picture display parameters of all to-be-displayed video data sources in the same video frame to obtain a switching picture of a corresponding video frame;
and generating switching video of the video all-in-one machine based on the switching pictures of all video frames.
6. A video all-in-one machine switching system for performing the video all-in-one machine switching method of any one of claims 1 to 5, comprising:
the generating module is used for determining all video data sources to be displayed based on the display switching instruction and generating a to-be-displayed picture partition array of the video all-in-one machine based on all the video data sources to be displayed;
the correction module is used for carrying out mutual fusion correction on the original picture display parameters of all video frames of all video data sources to be displayed in the same frame number based on the picture partition array to be displayed, so as to obtain the picture display parameters to be fused of each video data source to be displayed in each video frame;
and the fusion module is used for obtaining the switching video of the video all-in-one machine based on the to-be-displayed picture partition array and the to-be-fused picture display parameters of all the to-be-displayed video data sources in all the video frames.
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