JEI Letters

Early termination algorithm for the depth modeling mode in three-dimensional extension of high-efficiency video coding

[+] Author Affiliations
Haiwei Lei, Wenyi Liu

North University of China, Key Laboratory of Instrumentation Science and Dynamic Measurement, Ministry of Education, Xueyuan Road, Taiyuan 030051, China

Anhong Wang

Taiyuan University of Science and Technology, Institute of Digital Media and Communication, Waliu Road, Taiyuan 030024, China

Jie Liang

Simon Fraser University, School of Engineering Science, 8888 University Drive, Burnaby, BC V5A 1S6, Canada

J. Electron. Imaging. 25(5), 050503 (Oct 18, 2016). doi:10.1117/1.JEI.25.5.050503
History: Received May 5, 2016; Accepted September 22, 2016
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Abstract.  The depth modeling mode (DMM) is a new coding tool in the three-dimensional extension of high-efficiency video coding (3D-HEVC) standard to improve the coding of depth maps. In DMM, the current depth block is partitioned into two nonrectangular partitions and each partition is predicted by a constant partition value (CPV). A searching algorithm for the optimal CPVs has been provided in the 3D-HEVC reference software, which, however, has high complexity and is time-consuming. This letter shows that the distortion function in DMM is convex and proposes a fast early termination algorithm for searching the optimal CPVs without losing its optimality. Theoretical analysis of the method is provided, and experimental results show that our method can save 20% of search time with the same coding performance.

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Citation

Haiwei Lei ; Anhong Wang ; Wenyi Liu and Jie Liang
"Early termination algorithm for the depth modeling mode in three-dimensional extension of high-efficiency video coding", J. Electron. Imaging. 25(5), 050503 (Oct 18, 2016). ; http://dx.doi.org/10.1117/1.JEI.25.5.050503


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