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The encoded bitstream of a typical video compression method is vulnerable to errors during transmission over lossy network. Multiple Description Coding (MDC) is an error resilient video coding suitable for real-time applications when retransmission is unacceptable. Subsampling-based MDC with error concealment is often effective for mitigating unpredictable losses. In this paper, a spatial subsampling...
This paper presents an improved fast mode decision algorithm for coarse grain scalability (CGS). The modified fast mode decision algorithm extends previous work to provide better encoder complexity reduction with insignificant degradation in picture quality. The candidate mode set is adaptive to the quantization parameter difference between a layer and its "base layer". Furthermore, the...
The on-going scalable video coding (SVC) standard is an extension of H.264/AVC. It enables significantly improved compression performance at the expense of greatly increased computational complexity at both the encoder and the decoder sides. This paper presents an adaptive algorithm to reduce the complexity of decoder at the encoder side for coarse granular scalability. Hence, lightweight bitstreams...
Scalable video coding is an ongoing standard, and the current working draft (WD) is an extension of H.264/AVC. In the WD, an exhaustive search technique is employed to select the best coding mode for each macroblock. This technique achieves the highest possible coding efficiency, but it results in extremely large encoding time which obstructs it from practical use. This paper proposes a fast mode...
Scalable video coding (SVC) is an on-going standard and the current working draft (WD) is an extension of H.264/AVC. In the WD, exhaustive search technique is employed to select the best coding mode for each macroblock (MB). This technique achieves highest possible coding efficiency, but it results in higher computational complexity. To overcome this, we propose a novel fast mode decision scheme for...
Scalable video coding (SVC) is an on-going standard and the current working draft (WD) is an extension of H.264/AVC. It provides scalability at the bit stream level with good compression efficiency, and allowing free combinations of spatial, temporal and SNR scalability. In the WD, exhaustive search technique is employed to select the best coding mode for each macroblock. This technique achieves highest...
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