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This paper presents a novel unequal error protection scheme for H.264/AVC based on region of interest (ROI) with improved error resilience and quality of ROI region in video communication. With the help of flexible macro-block ordering (FMO) in H.264/AVC, the proposed scheme can not only encode the ROI region and the Non-ROI region in separate slice groups (SGs), but also further classify the ROI...
A rate control approach is proposed to deal with the low delay H.264/AVC video transmission over channels with burst errors by applying stochastic optimization technique. Based on the exponential rate-distortion and the linear variance prediction model, the one pass rate control algorithm will take into account the channel state and round trip delay, and make an immediate decision on the optimal rate...
A rate control approach is proposed to deal with the low delay H.264/AVC video transmission over channels with burst errors by applying stochastic optimization technique. Based on the exponential rate-distortion and the linear variance prediction model, the one pass rate control algorithm will take into account the channel state and round trip delay, and make an immediate decision on the optimal rate...
An improved ROI-based rate control algorithm for H.264/AVC is proposed in this paper, which exploits the features of human visual system (HVS), with video content taken into account, to enhance perceptual quality as well as to reach the target bit rate simultaneously. A novel motion-based rate prediction model is employed which is more accurate and straightforward than the one in H.264/JM80. The bit...
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