Video display method, video display system, electronic device, and storage medium

Patent metadata

Field	Value
Publication number	US-11620965-B2
Application number	US-202117406054-A
Country	US
Kind code	B2
Filing date	Aug 18, 2021
Priority date	Aug 19, 2020
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

A video display method includes: acquiring at least one frame image corresponding to a current display time point in at least one source video; reading a stage configuration file, obtaining a stage modeling parameter of the stage space at the current display time point and a corresponding relationship between the at least one frame image and the stage space according to a specific stage related parameter in the stage configuration file; according to the stage modeling parameter and the corresponding relationship, processing the at least one frame image to obtain divided regions corresponding to all display screens included in the at least one stage plane; determining display contents corresponding to the divided regions, and copying the display contents to at least one target memory; and outputting a content in the at least one target memory to the at least one stage plane for display.

First claim

What is claimed is:

1. A video display method, for displaying a background video of a stage space, wherein the stage space comprises at least one stage plane, each of the at least one stage plane comprises a plurality of display screens,
the background video comprises at least one source video, each source video comprises a plurality of frame images corresponding to a plurality of display time points, respectively, and each source video is displayed on a stage plane,
the video display method, for a current display time point of the plurality of display time points, comprises:
acquiring at least one frame image corresponding to the current display time point in the at least one source video;
reading a stage configuration file, and obtaining a stage modeling parameter of the stage space at the current display time point and a corresponding relationship between the at least one frame image and the stage space according to a specific stage related parameter in the stage configuration file;
according to the stage modeling parameter and the corresponding relationship between the at least one frame image and the stage space, processing the at least one frame image to obtain a plurality of divided regions that are in one-to-one correspondence to all display screens comprised in the at least one stage plane;
determining a plurality of display contents that are in one-to-one correspondence to the plurality of divided regions, and copying the plurality of display contents to at least one target memory; and
outputting a content in the at least one target memory to the at least one stage plane for display;

wherein the all display screens are divided into at least one display screen group according to positions of the all display screens, at least one divided region corresponding to at least one display screen comprised in each display screen group constitutes a divided region group, and each divided region group corresponds to a target memory of the at least one target memory,
each divided region group corresponds to a display screen arrangement sequence, wherein the display screen arrangement sequence is used for indicating an arrangement sequence of at least one display content corresponding to the at least one divided region comprised in each divided region group in a target memory corresponding to each divided region group,
copying the plurality of display contents to at least one target memory, comprises:
 for an i-th divided region group, according to a display screen arrangement sequence corresponding to the i-th divided region group, copying at least one display content corresponding to at least one divided region comprised in the i-th divided region group to a target memory corresponding to the i-th divided region group,
 wherein i is a positive integer and less than a total number of the at least one divided region group.

2. The video display method according to claim 1 , wherein a spatial position and a size of each display screen at the current display time point are obtained based on the stage modeling parameter,
the corresponding relationship between the at least one frame image and the stage space comprises a frame image corresponding to each display screen and a corresponding relationship between the at least one source video and the stage space,
the corresponding relationship between the at least one source video and the stage space comprises a stage plane corresponding to each of the at least one frame image and a plurality of vertex space coordinates of each frame image in a stage plane corresponding to each frame image after each frame image is mapped to the stage plane corresponding to each frame image,
according to the stage modeling parameter and the corresponding relationship between the at least one frame image and the stage space, processing the at least one frame image to obtain the plurality of divided regions that are in one-to-one correspondence to the all display screens comprised in the at least one stage plane, comprises:
for each display screen of the all display screens, determining a spatial position and a size of the display screen at the current display time point according to the stage modeling parameter;
according to the corresponding relationship between the at least one source video and the stage space, determining a frame image corresponding to the display screen and a plurality of vertex space coordinates of the frame image in a stage plane corresponding to the frame image after the frame image is mapped to the stage plane corresponding to the frame image; and
determining a divided region corresponding to the display screen based on the spatial position and the size of the display screen at the current display time point and the plurality of vertex coordinates of the frame image in the stage plane corresponding to the frame image.

3. The video display method according to claim 1 , wherein before determining the plurality of display contents that are in one-to-one correspondence to the plurality of divided regions, the video display method further comprises:
reading the at least one frame image into a source memory.

4. The video display method according to claim 3 , wherein determining the plurality of display contents that are in one-to-one correspondence to the plurality of divided regions, comprises:
for each divided region of the plurality of divided regions, determining a source memory address space corresponding to the divided region in the source memory; and
arranging contents in the source memory address space according to a display screen pixel arrangement sequence, to obtain a display content corresponding to the divided region.

5. The video display method according to claim 4 , wherein determining the source memory address space corresponding to the divided region in the source memory, comprises:
acquiring an offset value of each pixel in the divided region relative to an image origin corresponding to the divided region;
determining a source memory address corresponding to the image origin;
according to the source memory address corresponding to the image origin and the offset value, determining a source memory address corresponding to each pixel; and
according to source memory addresses corresponding to all pixels in the divided region, determining the source memory address space corresponding to the divided region.

6. The video display method according to claim 3 , wherein determining the plurality of display contents that are in one-to-one correspondence to the plurality of divided regions, for each divided region of the plurality of divided regions, comprises:
determining a source memory address space corresponding to the divided region;
acquiring an image editing parameter, and performing a transformation process on contents in the source memory address space corresponding to the divided region according to the image editing parameter; and
arranging the contents in the source memory address space after being performed the transformation process according to a display screen pixel arrangement sequence, to obtain a display content corresponding to the divided region.

7. The video display method according to claim 1 , wherein each display screen group is controlled by a display controller, and
the video display method further comprises:
for the plurality of divided regions, taking a divided region group as a unit, sequentially performing operations of determining at least one display content corresponding to at least one divided region comprised in the divided region group, and copying the at least one display content to a target memory corresponding to the divided region group, and
releasing the target memory corresponding to the divided region group in response to a case where a content of the target

Assignees

• Beijing Institute Tech

Inventors

• Ding Gangyi
• Huang Tianyu
• Li Peng
• Li Lijie
• Tang Mingxiang

Classifications

• G09G5/395

  Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen (G09G5/399 takes precedence) · CPC title

• G09G5/006

  Details of the interface to the display terminal (specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04) · CPC title

• A63J1/00 Primary

  Stage arrangements · CPC title

• G09G5/32 Primary

  with means for controlling the display position {(see provisionally G09G5/42)} · CPC title

• G06F3/1431 Primary

  using a single graphics controller · CPC title