18210726. REDUCING GRID ARTIFACTS IN VIDEO FRAMES (ZOOM VIDEO COMMUNICATIONS, INC.)

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REDUCING GRID ARTIFACTS IN VIDEO FRAMES

Organization Name

ZOOM VIDEO COMMUNICATIONS, INC.

Inventor(s)

Yi Guo of Hangzhou (CN)

Zhichu He of Hangzhou (CN)

Rui Li of Hangzhou (CN)

Bo Ling of Saratoga CA (US)

Jing Wu of Hangzhou (CN)

Minxia Yang of Hangzhou (CN)

YiChen Zhang of Hangzhou (CN)

REDUCING GRID ARTIFACTS IN VIDEO FRAMES

This abstract first appeared for US patent application 18210726 titled 'REDUCING GRID ARTIFACTS IN VIDEO FRAMES



Original Abstract Submitted

In one example, a video encoder divides a superblock of a video frame into subblocks. The dividing includes dividing the superblock according to a first and second partitioning schemes to generate a first and second combination of subblocks, respectively. The number of non-zero residuals in each subblock in the first and second combinations of subblocks is less than a corresponding threshold set for a size of the subblock. The encoder determines the subblocks for the superblock as the first combination of subblocks based on a first cost value associated with the first combination of subblocks being lower than a second cost value associated with the second combination of subblocks. The encoder further encodes the superblock into a video bitstream representing the video by encoding the subblocks.