Fast Inter-frame Coding Based On SKIP Mode In The 3D-HEVC Standard

With the diversity and high definition of digital video applications,people are in urgent need of higher video compression efficiency.A new generation of video coding standard h.265/HEVC came into being.Due to the introduction of some new coding technologies,3DHEVC can increase the compression efficiency by one time on the original basis.These new technologies are of great significance to the improvement of coding efficiency.For example,CU technology of quadtree recursive partition also causes a great increase in the complexity of coding calculation.Therefore,this paper mainly studies the SKIP mode based fast interframe coding algorithm in 3d-hevc,and is committed to optimizing the computational complexity of depth image coding.In the co-coding frame of depth image,a fast decision algorithm of inter-frame coding based on Skipmode in 3d-hevc is proposed for the case that the first affiliated CU is the optimal encoding of Skipmode.In view of the characteristics of SKIP as the optimal prediction mode,this paper takes 4 times of the rate distortion function value of the first attached CU as the lower bound of the decision type side of the coding structure,and based on this,puts forward the decision formula of inter-frame coding structure division.In addition,this paper also selects the encoding block of texture image corresponding to depth image in 3D-HEVC,and proposes a fast inter-frame encoding method based on SKIP mode texture view in 3D-HEVC.This paper uses the test environment parameters recommended by the joint video working group for parameter setting and video test sequence for algorithm testing.Experiments show that the proposed algorithms can reduce the inter-frame coding complexity of the depth image and the coding time while ensuring the quality of synthetic viewpoint video.