Sciweavers

Share
ICASSP
2009
IEEE

Rate-distortion optimized bitstream extractor for motion scalability in scalable video coding

10 years 4 months ago
Rate-distortion optimized bitstream extractor for motion scalability in scalable video coding
Motion scalability is designed to improve the coding efficiency of a scalable video coding framework, especially in the medium to low range of decoding bit rates or spatial resolutions. In order to fully benefit from the superiority of motion scalability, a rate-distortion optimized bitstream extractor, which determines the optimal motion quality layer for each decoding scenario, is required. In this paper, the determination process first starts off with a brute force searching algorithm. Although guaranteed by the optimal performance within the search domain, it has high computational complexity. Two properties, i.e. the monotonically non-decreasing property and the unimodal property, are then derived to accurately describe the rate-distortion behavior of motion scalability. Based on these two properties, modified searching algorithms are proposed to reduce the complexity by a factor up to 5.
Meng-Ping Kao, Truong Nguyen
Added 21 May 2010
Updated 21 May 2010
Type Conference
Year 2009
Where ICASSP
Authors Meng-Ping Kao, Truong Nguyen
Comments (0)
books