Fast Edge Detection and Early Depth Decision for Intra Coding of 3D-HEVC

In this paper, an improved low complexity algorithm for 3D-HEVC is proposed to reduce the computational complexity. The basic idea of the method is to utilize the boundary homogeneity of texture and depth map which is generated by Laplacian filter. Firstly, based on the evaluation result of the boundary homogeneity, an early coding unit (CU) decision method is proposed to achieve the low computational complexity. Secondly, an efficient edge detection algorithm using Laplacian filter provide fast intra depth coding with the reduction of the number in intra prediction mode. The simulation results show that the proposed algorithm can achieve the average of 56.9% computation complexity reduction comparing to the original HTM algorithm. Keyword: HEVC; 3D video coding (3D-HEVC); Intra depth coding; Intra prediction.