Sciweavers

Share
ICIP
2009
IEEE

Highly-parallelized motion estimation for Scalable Video Coding

9 years 9 months ago
Highly-parallelized motion estimation for Scalable Video Coding
In this paper, we discuss the design of a highly-parallel motion estimator for real-time Scalable Video Coding (SVC). In an SVC, motion is commonly estimated bidirectionally and over various temporal distances. Current motion estimators are optimized for frame-byframe estimation, and such estimators are designed without serious implementation constraints. To support efficient embedded applications, we propose a Highly Parallel Predictive Search (HPPS) motion estimator while preserving an accurate estimation performance. The motion estimation algorithm is optimized for processing on parallel cores and utilizes a novel recursive search strategy. This strategy is based on hierarchically increasing the temporal distance in the estimation algorithm while using the state of the previous hierarchical layer as an input. Due to the absence of local recursions in the algorithm, the proposed motion estimator has a constant computational load, regardless of video activity or temporal distance. We...
Marijn J. H. Loomans, Cornelis J. Koeleman, Peter
Added 19 Feb 2011
Updated 19 Feb 2011
Type Journal
Year 2009
Where ICIP
Authors Marijn J. H. Loomans, Cornelis J. Koeleman, Peter H. N. de With
Comments (0)
books