Region-of-Interest Processing and Coding Techniques

Abstract

This chapter comprehensively covers the topic of the Region-of-Interest (ROI) processing and coding for multimedia applications. The variety of end-user devices with different capabilities, ranging from cell phones with small screens and restricted processing power to high-end PCs with high-definition displays, have stimulated significant interest in effective technologies for video adaptation. Therefore, the authors make a special emphasis on the ROI processing and coding with regard to the relatively new H.264/SVC (Scalable Video Coding) standard, which have introduced various scalability domains, such as spatial, temporal, and fidelity (SNR/quality) domains. The authors’ observations and conclusions are supported by a variety of experimental results, which are compared to the conventional Joint Scalable Video Model (JSVM).

Efficient Region-of-Interest Scalable Video Coding with Adaptive Bit-Rate Control

“…In turn, the outputs are a quantization parameter (QP) for the quantization process and another QP for the rate-distortion optimization (RDO) process of each basic unit, while these two quantization parameters, in the single layer video coding, are usually equal in order to maximize the coding efficiency [37][38][39].…”