2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information

2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information
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Paper Detail

Paper IDIVMSP-4.3
Paper Title DECISION TREE BASED INTER PARTITION TERMINATION FOR AV1 ENCODING
Authors Xinyao Chen, Yiwei Zhang, Yanghao Li, Jiangtao Wen, Tsinghua University, China
SessionIVMSP-4: Image & Video Coding 2
LocationGather.Town
Session Time:Tuesday, 08 June, 14:00 - 14:45
Presentation Time:Tuesday, 08 June, 14:00 - 14:45
Presentation Poster
Topic Image, Video, and Multidimensional Signal Processing: [IVCOM] Image & Video Communications
IEEE Xplore Open Preview  Click here to view in IEEE Xplore
Abstract As a next-generation video coding standard, AV1 introduces numerous new coding tools, leading to high computational complexity and high time cost. To deal with this problem, in this paper, we propose a decision tree based algorithm to early terminate the inter prediction process by predicting splitting decisions at each depth. Motion compensated block is introduced to provide temporal neighborhood information. Nine attributes are selected and analyzed in this paper, and a set of decision trees are generated for different block sizes. According to experimental results, our algorithm can save 23.6% of encoding time on average, with a negligible BD-rate loss of 0.73% under low-delay encoding mode.