A Consideration on a Scalable Video Coding Using a Prediction Method in Quantization Parameters

Abstract

Since the international standardization in video coding methods had recently been making progress, many video contents are often used in our everyday life. Moreover, there are some problems with the methods of application in multi-quality videos due to the growth of mobile devices, e.g., smart-phones and tablets, and the image resolution enhancement of TV images, e.g., HDTV, 4K-TV and 8K-TV. In particular, the application of scalable video coding (SVC) has attracted the attention. Meanwhile, SVC has the problem of the reduction of coding quality due to the increase in hierarchical header information. Then, we propose a reduction scheme of the coded bits using a prediction method of quantization parameters in SVC. In this study, we describe the computed parameters and consider the improvement of the coding efficiency.