An optimal mode selection algorithm for scalable video coding

TL;DR

This paper introduces an optimal mode selection algorithm for scalable video coding that significantly reduces encoding time while maintaining high PSNR and efficient bit rate, improving over traditional methods.

Contribution

The paper proposes a novel pixel orientation-based mode selection algorithm that enhances encoding efficiency and quality in scalable video coding.

Findings

57.44% reduction in encoding time

0.43 dB increase in PSNR

0.23% bit rate compression

Abstract

Scalable video coding (SVC) is extended from its predecessor advanced video coding (AVC) because of its flexible transmission to all type of gadgets. However, SVC is more flexible and scalable than AVC, but it is more complex in determining the computations than AVC. The traditional full search method in the standard H.264 SVC consumes more encoding time for computation. This complexity in computation need to be reduced and many fast mode decision (FMD) algorithms were developed, but many fail to balance in all the three measures such as peak signal to noise ratio (PSNR), encoding time and bit rate. In this paper, the proposed optimal mode selection algorithm based on the orientation of pixels achieves better time saving, good PSNR and coding efficiency. The proposed algorithm is compared with the standard H.264 JSVM reference software and found to be 57.44% time saving, 0.43 dB increments in PSNR and 0.23% compression in bit rate.