Title :
McFIS in hierarchical bipredictve pictures-based video coding for referencing the stable area in a scene
Author :
Misra, K. ; Jie Zhao ; Segall, A.
Author_Institution :
Sharp Labs. of America, Camas, WA, USA
Abstract :
In this paper, we outline a coding strategy that initializes the entropy coding engine of a video codec at pre-defined locations within a bit-stream. Coupled with the causal dependencies of state-of-the-art video coding systems, this enables wavefront processing of the entropy decoding and reconstruction process simultaneously. Approaches to wavefront processing have been considered by others, and those methods either address the reconstruction process solely or require transmitting image data in non-raster scan order. Here, our key contribution is that we enable simultaneous entropy/reconstruction wavefront processing while still preserving a raster scan strategy. In this paper, we describe the system, as well as different strategies for initializing the context models. The performance of the proposed methods is evaluated, and the bitrate increase is shown to be nominal.
Keywords :
decoding; entropy; image reconstruction; video codecs; video coding; video streaming; causal dependency; coding strategy; entropy coding engine; image data transmission; periodic entropy coder initialization; raster preservation; raster scan strategy; reconstruction wavefront processing; state-of-the-art video coding system; video bitstream; video codec; wavefront decoding; Correlation; Encoding; Image coding; Quantization; Video coding; Video sequences; Dual frames; Long term reference frames; MRFs; McFIS; hierarchical B-picture; uncovered background;
Conference_Titel :
Image Processing (ICIP), 2011 18th IEEE International Conference on
Conference_Location :
Brussels
Print_ISBN :
978-1-4577-1304-0
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2011.6116473