Vijayaraghavan Thirumalai

Inter-view motion prediction in 3D-HEVC

This paper presents a novel inter-view motion prediction technique used in 3D-HEVC which provides efficient compression for motion vectors. The 3D extension of HEVC (High Efficiency Video Coding) namely 3D-HEVC is under development in JCT-3V for coding multi-view video and depth data. Inter-view motion prediction takes benefit of the inter-view correlation between views by inferring the motion information of a view from the already coded motion information in another view as well as the local disparity between two views. Experimental results show that inter-view motion prediction in 3D-HEVC provides an average bit-rate savings of 15% for the dependent views.

A new display stream compression standard under development in VESA

The Advanced Display Stream Compression (ADSC) codec project is in development in response to a call for technologies from the Video Electronics Standards Association (VESA). This codec targets visually lossless compression of display streams at a high compression rate (typically 6 bits/pixel) for mobile/VR/HDR applications. Functionality of the ADSC codec is described in this paper, and subjective trials results are provided using the ISO 29170-2 testing protocol.

Inter-view motion vector prediction for depth coding

This paper presents an inter-view motion prediction technique for efficient compression of motion vectors of the depth views in 3D-HEVC. 3D-HEVC is an extension of HEVC standard for coding the multi-view video plus depth content, known as MVD. In MVD format, the motion characteristics of the adjacent views in the depth video are highly correlated. In this paper, we take benefit of this correlation and propose inter-view motion prediction technique, where motion information of the dependent depth views is predicted from the already coded motion information in a reference depth view. In addition, a novel method for deriving disparity vectors based on neighboring pixels is proposed in order to establish correspondences between the blocks in different depth views. Experimental results show that proposed inter-view motion prediction method provides an average bit-rate savings of 1.5% for the synthesized views when the motion information of the depth views is predicted without using the texture information.