The Thor Video Codec
2016 Data Compression Conference (DCC)(2016)
摘要
The Thor video codec is being developed by Cisco with the intention to use only royalty-free coding tools. The video codec is based on the well-known block-based hybrid video coding approach, but with some significant changes compared to existing standards such as AVC/H.264 and HEVC/H.265. These changes include transform coefficient coding, deblocking filter, a separate deringing filter, and interpolated reference frames. Experimental results show 14.5% and 15.3% BDR loss compared to the HEVC/H.265 reference software for low-delay and high-delay configurations respectively. When compared to optimized software implementations of VP9 and x265, Thor provides similar or better compression performance for the same frame rate.
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关键词
Thor video codec,Cisco,block-based hybrid video coding approach,AVC/H.264,HEVC/H.265,transform coefficient coding,deblocking filter,separate deringing filter,interpolated reference frames
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