Dividing method, distribution method, medium, server, system

Patent metadata

Field	Value
Publication number	US-2022308821-A1
Application number	US-202017309612-A
Country	US
Kind code	A1
Filing date	May 29, 2020
Priority date	May 29, 2020
Publication date	Sep 29, 2022
Grant date	—

Abstract

A video processing method applied to a splicing screen is provided, including: dividing each frame of an initial video into multiple sub-images; and forming sub-videos using all the sub-images, the initial video and each sub-video including M frames, M being an integer greater than 1, and durations of individual frames of the sub-videos being the same, wherein i-th frames of all sub-videos are spliced into an i-th frame of the initial video, and a relative position of the i-th frame of any sub-video in the i-th frame of the initial video is the same as a relative position of any other frame of the sub-video in a corresponding frame of the initial video, where i is a variable whose value is a natural number from 1 to M.A dividing task distribution method, a computer-readable storage medium, a scheduling server, an execution server and a video processing system are provided.

First claim

1 . A video processing method applied to a splicing screen for display, comprising:
dividing each frame of an initial video into a plurality of sub-images, the initial video comprising M frames, where M is a positive integer greater than 1; and forming a plurality of sub-videos using all of the obtained plurality of sub-images, each sub-video comprising M frames, and durations of individual frames of the plurality of sub-videos being the same as each other, wherein i-th frames of all of the plurality of sub-videos are spliced into an i-th frame of the initial video, and for any one sub-video, a relative position of the i-th frame of the sub-video in the i-th frame of the initial video is the same as a relative position of any other frame of the sub-video in a corresponding frame of the initial video, where i is a variable, a value of which is a natural number from 1 to M.

2 . The video processing method of claim 1 , wherein the step of dividing each frame of an initial video into a plurality of sub-images comprises:
receiving a division request, wherein the division request comprises division information for each frame of the initial video; and dividing each frame of the initial video according to the division request.

3 . The video processing method of claim 2 , wherein the division information comprises a number of the plurality of sub-images into which each frame of the initial video is divided and layout information of the plurality of sub-images into which one frame of the initial video is divided, and the step of dividing each frame of the initial video according to the division request comprises:
determining sizes of the plurality of sub-images according to the division information; and dividing each frame of the initial video according to the sizes of the plurality of sub-images and the layout information of the plurality of sub-images.

4 . The video processing method of claim 3 , wherein the step of dividing each frame of the initial video according to the sizes of the plurality of sub-images and the layout information of the plurality of sub-images comprises:
determining coordinates of a reference point of each sub-image in a corresponding image according to the size of the sub-image and the layout information of the plurality of sub-images; and determining information of pixels belonging to each sub-image according to the coordinates of the reference point of each sub-image in the corresponding image and the size of the sub-image to obtain each sub-image.

5 . The video processing method of claim 4 , wherein each frame of the initial video is a rectangular image, each sub-image is a rectangular image, and the reference point of each sub-image is a vertex at an upper left corner of the sub-image.

6 . The video processing method of claim 5 , wherein the division information comprises information indicating that each frame of the initial video is divided into sub-images in a rows and b columns, where a and b are both positive integers.

7 . The video processing method of claim 1 , further comprising, after forming the plurality of sub-videos using all of the obtained plurality of sub-images, a step of:
assigning an address for each sub-video.

8 . The video processing method of claim 7 , further comprising, after forming the plurality of sub-videos using all of the obtained plurality of sub-images, a step of:
determining mapping relationship between the plurality of sub-videos and display terminals that play the plurality of sub-videos.

9 . The video processing method of further comprising, before the step of dividing each frame of the initial video into a plurality of sub-images, steps of:
obtaining a dividing task address; and acquiring the initial video according to the dividing task address.

10 . The video processing method of claim 9 , wherein the initial video is in a target format, and the step of acquiring the initial video according to the dividing task address comprises:
acquiring a source video at the dividing task address; and performing format conversion on the source video to obtain the initial video in response to the source video in a format inconsistent with the target format.

11 . The video processing method of claim 1 , further comprising, after forming the plurality of sub-videos using all of the obtained plurality of sub-images, steps of:
determining a play task according to each sub-video; generating a task list according to the play task; and delivering the task list to a plurality of display terminals of the splicing screen.

12 . The video processing method of claim 11 , wherein the step of determining a play task according to each sub-video comprises:
determining identification information of a display terminal required by the play task; determining a master device in the play task and a slave device in the play task according to the identification information of the display terminal required by the play task; and generating the play task according to each sub-video, the identification information of the display terminal serving as the master device, and the identification information of the display terminal serving as the slave master.

13 . A dividing task distribution method, comprising:
generating at least one dividing task according to a received source video; and allocating, according to statuses of a plurality of servers, each dividing task to a server that meets a predetermined condition, so that the server that receives the dividing task executes the video processing method of claim 1 .

14 . The dividing task distribution method of claim 13 , wherein the predetermined condition is that:
a number of tasks executed by the server in the plurality of servers does not exceed a predetermined number.

15 . The dividing task distribution method of claim 13 , further comprising, between the step of generating at least one dividing task according to a received source video and the step of allocating, according to statuses of a plurality of servers, each dividing task to a server that meets a predetermined condition, a step of:
sorting N servers in ascending order by the number of tasks executed by each server; and the step of allocating, according to statuses of a plurality of server, each dividing task to a server that meets a predetermined condition comprises: sequentially sending the generated dividing tasks to servers in the top L among the N servers, where a value of L is the same as the number of the generated dividing tasks, and L<N.

16 . The dividing task distribution method of claim 13 , further comprising:
storing mapping relationship between each dividing task and the server executing the dividing task.

17 . A computer-readable storage medium for storing an executable program, wherein when being invoked, the executable program is capable of executing one of:
a video processing method applied to a splicing screen for display; and the dividing task distribution method of claim 13 , wherein the video processing method comprises:
dividing each frame of an initial video into plurality of sub-images, the initial video comprising M frames, where M is a positive integer greater than 1; and
forming a plurality of sub-videos using all of the obtained plurality of sub-images, each sub-video comprising M frames, and durations of individual frames of the plurality of sub-videos being the same as each other, wherein i-th frames of all of the plurality of sub-videos are spliced into an i-th frame of the initial video, and for Arty one sub-video, a relative position of the i-th frame of the s

Assignees

• Boe Technology Group Co Ltd

Inventors

• Li Peng
• Li Wenjuan
• Shao Guangyu
• Li Shuyi
• Qin Yang
• Wang Hong
• Lei Yiming
• He Wangqiang

Classifications

• G09G2340/0435

  Change or adaptation of the frame rate of the video stream · CPC title

• G09G2340/04

  Changes in size, position or resolution of an image · CPC title

• G06F3/1446 Primary

  display composed of modules, e.g. video walls · CPC title

• G06T3/4038

  Image mosaicing, e.g. composing plane images from plane sub-images · CPC title