Hardware-Oriented Wedgelet Evaluation Skip for DMM-1 in 3D-HEVC

This work presents a pattern-based gradient hardware-friendly simplification for Depth Modeling Mode 1 (DMM-1) encoding effort reduction in 3D High Efficiency Video Coding (3D-HEVC). The proposed algorithm is an advance of a related work that uses a line-based gradient algorithm. This novel algorithm computes the gradient of the borders of the encoding depth block and verifies the best patterns that should be evaluated by DMM-1. When designing this algorithm, hardware features were analyzed to allow simple and efficient implementation. The pattern-based algorithm can achieve an encoding effort reduction of 7.6% with a negligible BD-rate loss of 0.01%. These results represent almost the same encoding effort reduction of related works and nearly 10 times less impact on the encoder performance regarding compression rate and video quality.

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