US 12,284,458 B2
Processing device, system and method for board writing display
Weiqi Li, Beijing (CN); Gaosheng Wang, Beijing (CN); Nan Jing, Beijing (CN); Yuandong Huang, Beijing (CN); and Andy Zhou, Beijing (CN)
Assigned to Beijing ESWIN Computing Technology Co., Ltd., Beijing (CN)
Filed by Beijing ESWIN Computing Technology Co., Ltd., Beijing (CN)
Filed on Feb. 6, 2023, as Appl. No. 18/164,648.
Claims priority of application No. 202210471921.0 (CN), filed on Apr. 29, 2022.
Prior Publication US 2023/0353702 A1, Nov. 2, 2023
Int. Cl. H04N 5/272 (2006.01); G06T 5/70 (2024.01); G06T 7/11 (2017.01)
CPC H04N 5/272 (2013.01) [G06T 5/70 (2024.01); G06T 7/11 (2017.01); G06T 2207/10016 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A processing device for board writing display, wherein the processing device comprises:
an extraction unit, configured to extract a first board-writing image from a first image frame in a video and a second board-writing image from a second image frame in the video;
a supplement unit, configured to determine an occlusion area of the second board-writing image based on a target object segmentation image of the second image frame, and replace the occlusion area of the second board-writing image with a corresponding area of the first board-writing image to obtain a third board-writing image;
an output unit, configured to generate an output image frame based on the second image frame and the third board-writing image, wherein the output image frame presents an image with a target object located behind a transparentized board writing content;
wherein, the first board-writing image is a board-writing image with complete board-writing data, and the second board-writing image is a board-writing image that needs to be supplemented with board-writing data due to the target object being occluded.