US 11,917,167 B2
Image compression method and apparatus, image display method and apparatus, and medium
Zhihua Ji, Beijing (CN); Tiankuo Shi, Beijing (CN); Xiaomang Zhang, Beijing (CN); Chingwen Kung, Beijing (CN); Rui Liu, Beijing (CN); Yifan Hou, Beijing (CN); Minglei Chu, Beijing (CN); Yanhui Xi, Beijing (CN); Yan Sun, Beijing (CN); Chenxi Zhao, Beijing (CN); Xiangjun Peng, Beijing (CN); and Shuo Zhang, Beijing (CN)
Assigned to BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/764,359
Filed by Beijing BOE Optoelectronics Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed May 8, 2021, PCT No. PCT/CN2021/092369
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2022/021991, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 202010760340.X (CN), filed on Jul. 31, 2020.
Prior Publication US 2022/0345723 A1, Oct. 27, 2022
Int. Cl. H04N 11/02 (2006.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/172 (2014.11) [H04N 19/176 (2014.11)] 16 Claims
OG exemplary drawing
 
1. An image compression method, comprising steps of:
acquiring a human-eye fixation point on an original image, and determining a fixation region and a non-fixation region of the original image according to the human-eye fixation point; and
compressing the non-fixation region by dividing the non-fixation region into a plurality of image blocks which do not overlap with each other, and rearranging the plurality of image blocks to generate a rearranged region; and
compressing the rearranged region by down-sampling a chrominance channel of the rearranged region in a first direction according to a preset first sampling multiple; and
down-sampling a luminance channel and the chrominance channel of the rearranged region in a second direction according to a preset second sampling multiple;
wherein each image block is rectangular, two of its four sides are parallel to a horizontal direction, the other two sides are parallel to a vertical direction, the first direction is one of the horizontal direction and the vertical direction, and the second direction is the other of the horizontal direction and the vertical direction; the first sampling multiple is greater than the second sampling multiple; and
generating a compressed image according to the fixation region and the compressed non-fixation region.