Improved H.264/AVC coding using texture analysis and synthesis
Patrick Ndjiki-Nya, Bela Makai, G. Blattermann, Aljoša Smolić, Heiko Schwarz, Thomas Wiegand · 2004
We assume that the textures in a video scene is classified into two categories: textures with unimportant subjective details and the remainder. We utilize this assumption for improved video coding using a texture analyzer and a texture synthesizer. The texture analyzer identifies the texture regions with unimportant subjective details and generates coarse masks as well as side information for the texture synthesizer at the decoder side. The texture synthesizer replaces the identified textures by inserting synthetic textures for the identified regions. The texture analyzer is based on MPEG-7 descriptors. Our approach is integrated into an H.264/AVC codec. Bit-rate savings up to 19.4% are shown for a semi-automatic texture analyzer given similar subjective quality as the H.264/AVC codec without the presented approach.