公开(公告)号：US20200245000A1

公开(公告)日：2020-07-30

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

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.