发明名称 Method of reducing a blocking artifact when coding moving picture
摘要 A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S0, S1, and S2, which are centered around a block boundary. If a default mode is selected then frequency information of the surroundings of the block boundary is obtained. A magnitude of a discontinuous component in a frequency domain belonging to the block boundary is adjusted based on a magnitude of a corresponding discontinuous component selected from a pixel contained entirely within a block adjacent the block boundary. The frequency domain adjustment is then applied to a spatial domain. Or, a DC offset mode can be selected to reduce blocking artifacts in smooth regions where there is little motion.
申请公布号 US8983225(B2) 申请公布日期 2015.03.17
申请号 US200912573531 申请日期 2009.10.05
申请人 LG Electronics Inc. 发明人 Kim Hyun Mun;Ra Jong Beom;Kim Sung Deuk;Lee Young Su
分类号 G06T5/00;H04N19/86;H04N19/137;H04N19/00;H04N19/527;H04N19/126;H04N19/48 主分类号 G06T5/00
代理机构 Fish & Richardson P.C. 代理人 Fish & Richardson P.C.
主权项 1. A computer-implemented method comprising: obtaining, a first block including a first boundary pixel and a second block including a second boundary pixel, wherein the first and second boundary pixels are neighboring to each other and separated by a boundary between the first and second blocks; and performing a filtering operation on the boundary between the first and second blocks, wherein the filtering operation includes: obtaining a parameter based on four successive pixels including the first and second boundary pixels, andadjusting each of the first and second boundary pixels using an adjustment value when an absolute value of the parameter is less than a value representing quantization information, and wherein the adjustment value is determined using a difference between the first and second boundary pixels.
地址 Seoul KR