公开(公告)号：US20170295378A1

公开(公告)日：2017-10-12

申请号：US15287857

申请日：2016-10-07

Applicant: VIA ALLIANCE SEMICONDUCTOR CO., LTD.

Inventor： HENG QUE ,  DEMING GU ,  ZHOU HONG ,  YUANFENG WANG

IPC: H04N19/436 ,  H04N19/593 ,  H04N19/70 ,  H04N19/176

CPC classification number: H04N19/436 ,  H04N19/176 ,  H04N19/593

Abstract: An image compression method based on JPEG-LS is presented. In the method, the M×N pixels in the source image are divided into k groups. M, N, and k are all integers larger than one. Each group corresponds to a plurality of pixels among the M×N pixels. The decorrelation procedure and the context modeling procedure are performed for each of the plurality of pixels in the ith group of the k groups. The compensation look-up table is not refreshed until all pixels in the ith group are performed with the decorrelation procedure and the context modeling procedure.

公开(公告)号：US20170169600A1

公开(公告)日：2017-06-15

申请号：US15174253

申请日：2016-06-06

Applicant: VIA ALLIANCE SEMICONDUCTOR CO., LTD.

Inventor： FENGXIA WU ,  WEI ZHANG ,  ZHOU HONG ,  YUANFENG WANG

IPC: G06T15/00 ,  G06T19/20 ,  G06T7/00 ,  G06T1/60 ,  G06T15/80

CPC classification number: G06T15/005 ,  G06T1/60 ,  G06T15/80 ,  G06T19/20 ,  G06T2200/04 ,  G06T2200/28

Abstract: A device for image processing includes a first queue, a second queue, a cache, and a processor. The first queue is capable of receiving a first image tile. The processor is electrically connected to the first queue, the second queue, and the cache, respectively. The processor is capable of obtaining the first image tile from the first queue and obtaining mask information of the background mask corresponding to the first tile from the cache. The processor determines the relationship between the first image tile and the background mask based on the first image tile and the mask information so as to selectively transfer the first image tile to the second queue.