Volume 10, Number 05, May 2020

A Novel Bit Allocation Algorithm in Multi-view Video

  Authors

Tao Yan¹, In-Ho Ra², Deyang Liu³, Jiajun Hong¹, Jingyu Feng¹ and Shaojie Hou¹, ¹Putian University, China, ²Kunsan National University, South Korea and ³Anqing Normal University, China

  Abstract

The difficulty of rate control for Multi-view video coding(MVC) is how to allocate bits between views. The results of our previous research including the bit allocation among viewpoints uses the correlation analysis among viewpoints to predict the weight of each viewpoint. But when the scene changes, this prediction method will produce a lot of errors. Therefore, this article avoids this situation happening through scene detection. The core of the algorithm is to first divide all images into 6 types of encoded frames according to the structural relationship between disparity prediction and motion prediction, and improve the binomial rate distortion model, and then perform inter-view, frame layer, and basic unit based on the encoded information. Layer bit allocation and code rate control. In this paper, a reasonable bit rate is allocated between viewpoints based on the encoded information, and the frame layer bit rate is allocated using frame complexity and time-domain activity. Experimental simulation results show that the algorithm can effectively control the bit rate of MVC, while maintaining efficient coding efficiency, compared with the current MVC using JVT with fixed quantization parameters.

  Keywords

MVC, Quantization parameters, Bit allocation, Rate distortion model, Basic unit layer.

Conference Proceedings