H.264-based Lossless Video Coding Using Adaptive Transforms

Takamura, S.; Yashima, Yoshiyuki

doi:10.1109/icassp.2005.1415401

Cited by 17 publications

(12 citation statements)

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“…To evaluate a performance of the proposed methods, we used the existing H.264/AVC FRExt lossless coding, lossless intra 4:4:4 coding proposed by Lee [6,7], Takamura's method [8], JPEG-2000 in lossless mode [20], and JPEG LS (LOCO-I) algorithm [21]. The lossless intra 4:4:4 coding was recently proposed and it is well-known as the best lossless video coding method.…”

Section: Methodsmentioning

confidence: 99%

“…Coding gain of the proposed DPCM PM versus conventional methods (*QCIF, + CIF) Test sequence Coding gain of DPCM PM (%)vs. H.264/AVC vs. Lossless intra vs. Takamura[8] …”

mentioning

confidence: 97%

“…Intra prediction of the H.264/AVC is known to be effective for lossy video coding, however, this is not the case for lossless video coding because intra coding cannot remove all of the inter-pixel redundancy for lossless video coding. Several lossless coding algorithms have been proposed based on prediction and entropy coding [6][7][8][9][10][11][12]. Among existing lossless coding algorithms, the JPEG LS is known to be the most effective for lossless image compression.…”

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confidence: 99%

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Lossless video coding based on pixel-wise prediction

Nam

Sim

2008

Multimedia Systems

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The state-of-the-art H.264/AVC was designed for lossy video coding in the beginning. Recently, the H.264/AVC FRExt was developed by removing transformation and quantization for lossless coding. In this paper, we propose an efficient intra lossless coding method based on a pixel-wise prediction. The proposed algorithm introduces an additional intra prediction mode that employs the LOCO-I predictor of JPEG LS. We found that the proposed lossless coding algorithm achieved approximately 22.0, 2.6, and 10.7% bit saving in terms of compression ratio, compared to the H.264/AVC FRExt, lossless intra 4:4:4, and Takamura's lossless coding methods, respectively.

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Section: Methodsmentioning

confidence: 99%

“…Coding gain of the proposed DPCM PM versus conventional methods (*QCIF, + CIF) Test sequence Coding gain of DPCM PM (%)vs. H.264/AVC vs. Lossless intra vs. Takamura[8] …”

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confidence: 97%

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confidence: 99%

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Lossless video coding based on pixel-wise prediction

Nam

Sim

2008

Multimedia Systems

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“…(8) means that the output coefficients of 2-D LHT will be 16 times larger than the input [12]. In the presence of the problem, Philips and Denecker [13] introduced a lossless version of Hadamard transformation, which decomposed H as…”

Section: Overview Of Hadamard Transformmentioning

confidence: 99%

A low complexity block-based adaptive lossless image compression

Yang

Zhang

et al. 2013

Optik

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“…In [5], adaptive reversible transforms that increase the compression performance are proposed. The SbS DPCM [6] is proposed to overcome the inefficiency of block based intra prediction in H.264/AVC.…”

Section: Introductionmentioning

confidence: 99%

Improved H.264/AVC lossless intra compression using multiple partition prediction for 4×4 intra block

Lee

Ryu

Cho

2011

2011 18th IEEE International Conference on Image Processing

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The sample by sample DPCM (SbS DPCM) is an important prediction technique for the H.264/AVC lossless intra compression. In this paper, we propose a new prediction method that is more efficient than the conventional SbS DPCM, thereby improving the overall compression performance. The proposed method prepares 5 partition patterns for each 4×4 block such as 4×4 (no partition), 4×2, 2×4, 2×2 and 1×1. The pixels in each partition is intra predicted by SbS DPCM and the best partition which produces minimum bit is selected as the partition pattern for the 4×4 block. Also, the number of available intra prediction directions is determined according to the partition pattern to avoid too much side-information transmission. The experimental results show that the proposed method gives 3.62 % point bit rate saving on average and 4.74 % point bit rate saving at maximum compared to the conventional SbS DPCM.

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H.264-based Lossless Video Coding Using Adaptive Transforms

Cited by 17 publications

References 1 publication

Lossless video coding based on pixel-wise prediction

Lossless video coding based on pixel-wise prediction

A low complexity block-based adaptive lossless image compression

Improved H.264/AVC lossless intra compression using multiple partition prediction for 4×4 intra block

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H.264-based Lossless Video Coding Using Adaptive Transforms

Cited by 17 publications

References 1 publication

Lossless video coding based on pixel-wise prediction

Lossless video coding based on pixel-wise prediction

A low complexity block-based adaptive lossless image compression

Improved H.264/AVC lossless intra compression using multiple partition prediction for 4&#x00D7;4 intra block

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Improved H.264/AVC lossless intra compression using multiple partition prediction for 4×4 intra block