公开(公告)号：US11290750B2

公开(公告)日：2022-03-29

申请号：US16641131

申请日：2018-12-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong Yoon Kim ,  Seung-Ho Park ,  Tae Gyoung Ahn ,  Ho Cheon Wey ,  Sang Hun Kim ,  Young Su Moon

IPC: H04N19/895 ,  H04N5/232 ,  H04N19/172 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/86

Abstract: A display apparatus and method that reduces block noise by performing block noise boundary detections and generating a block noise boundary map on the basis of a result of the detections to cope with local random block noise having irregular shaped and blurred block boundaries to perform adaptive deblocking filtering. The apparatus includes: an image receiver; a map generator to generate a block boundary map by performing convolution using a plurality of kernels on a received image; a determiner to determine a filter parameter on the basis of the block boundary map and a block boundary period included in the block boundary map; a deblocking filter to vary a filter strength on the basis of the determined filter parameter; and a display on which an image in which block noise is removed by the deblocking filter is displayed.