Automatic construction of nonlinear denoising filter for video coding

Current video coding technologies such as H.264/AVC and HEVC employ in-loop filters such as deblocking filter, sample adaptive offset and adaptive loop filter. This paper aims to develop a new type of loop filter using an evolutionary method. Generated filter is not necessarily linear and, most distinctively, content-specific. Preliminary results show that proposed filter achieves the bit rate reduction of 0.62-1.01 % against HM4.0 (High Efficiency configuration), a test model of HEVC, the state-of-the-art coding technology.