公开(公告)号：US20170111660A1

公开(公告)日：2017-04-20

申请号：US15016370

申请日：2016-02-05

Applicant: Cisco Technology, Inc.

Inventor： Steinar Midtskogen

IPC: H04N19/82 ,  H04N19/51 ,  H04N19/86

CPC classification number: H04N19/82 ,  H04N19/51 ,  H04N19/635 ,  H04N19/80 ,  H04N19/86

Abstract: Presented herein are techniques for filtering pixels during video coding and decoding operations. Similar operations are performed at a video encoder and a video decoder. For a target pixel in a block of a video frame represented by the encoded bit-stream, a value of the target pixel is compared with neighboring pixels to produce a plurality of comparison results. A particular offset value for the target pixel is derived based on the plurality of comparison results. The target pixel is filtered using the particular offset value. This process is performed for some or all of the pixels of blocks of a video frame.