Compression of Bayer-Pattern Video Sequences Using Adjusted Chroma Subsampling

Chen, Hu; Sun, Mingzhe; Steinbach, Eckehard

doi:10.1109/tcsvt.2009.2031370

Cited by 35 publications

(51 citation statements)

References 9 publications

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“…The subsampled YUV image frame is then compressed by the H.264 encoder. One specific thing to be noted is that, for the case of the Bayer CFA, the sampling result of the proposed universal subsampling strategy is the same as that of Chen et al's subsampling strategy [4], an efficient subsampling strategy for Bayer CFA video sequences. After compressing the mosaic video sequences, the reconstruction of the video sequence at the decoder site can be described as follows.…”

Section: Proposed Universal Chroma Subsamplingmentioning

confidence: 91%

“…The traditional chroma subsampling strategy ignores these facts and always samples the U and V chroma components by the same way, resulting in quality degradation in the reconstructed mosaic video sequences. To alleviate this problem, Chen et al [4] proposed a chroma subsampling strategy specifically for the mosaic video sequences with the Bayer CFA structure. However, Chen et al's strategy cannot be used for the mosaic video sequences with non-Bayer CFA structures.…”

Section: Traditional Chroma Subsampling Strategy Inmentioning

confidence: 99%

“…Some compression methods, specifically designed for mosaic video sequences with the Bayer CFA [1], [9], [38], a wellknown CFA structure, have been developed [4], [11]- [13], [15]. Gastaldi et al [15] proposed the first compression method for mosaic video sequences, which first partitioned a mosaic image frame into three color planes, and then applied the MPEG-2-like [19] video coder to the rearranged color planes.…”

mentioning

confidence: 99%

“…Doutre and Nasiopoulos [13] presented an efficient compression method by utilizing the modified H.264 intra prediction scheme for mosaic video sequences. Chen et al [4] compressed the Bayer CFA video sequences by an adjusted chroma subsampling method in the H.264 video coder, which calculated the U and V chroma values for the B and R pixels in the Bayer CFA, respectively. Chen et al's method can produce significant enhancement in the quality of the reconstructed mosaic video at both the cases of high and low bitrates when compared with a conventional method in H.264/AVC, leading to a pioneer achievement in compressing Bayer CFA video sequences.…”

mentioning

confidence: 99%

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Universal Chroma Subsampling Strategy for Compressing Mosaic Video Sequences With Arbitrary RGB Color Filter Arrays in H.264/AVC

Yang

Chung

Yang

et al. 2013

IEEE Trans. Circuits Syst. Video Technol.

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In this paper, we propose a universal chroma subsampling strategy for compressing mosaic video sequences with arbitrary red-green-blue (RGB) color filter arrays (CFAs), which are widely used in the single sensor imaging pipeline, in H.264/AVC. We first develop a modified universal demosaicing scheme, which specifically recovers the G component in the color difference domain, to recover the missing color components in the input mosaic image frames. Then, based on the transform between the RGB and the YUV color spaces, the proposed universal subsampling strategy automatically samples, by considering the significance of the U and V components for reconstructing R and B pixels, the proper U and V chroma components according to the corresponding mosaic structure. To the best of our knowledge, this is the first universal chroma subsampling strategy designed specifically for mosaic video sequences with arbitrary RGB-CFAs. Experimental results on mosaic video sequences with seven common types of the RGB-CFAs demonstrate that the proposed universal chroma subsampling strategy is superior to the conventional strategy of H.264/AVC. Moreover, integrating the proposed universal demosaicing scheme and the chroma subsampling strategy can deliver better video sequence quality.Index Terms-Arbitrary color filter arrays, chroma subsampling, demosaicing, H.264/AVC video coding, single sensor digital camera.

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Section: Proposed Universal Chroma Subsamplingmentioning

confidence: 91%

Section: Traditional Chroma Subsampling Strategy Inmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Universal Chroma Subsampling Strategy for Compressing Mosaic Video Sequences With Arbitrary RGB Color Filter Arrays in H.264/AVC

Yang

Chung

Yang

et al. 2013

IEEE Trans. Circuits Syst. Video Technol.

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“…During signal propagation the noise/ interference signals are introduced into the Composite Signals. This unwanted signal also gets mixed with the original signal in such a way that the overall outcome of the system is corrupted [1].…”

Section: Introductionmentioning

confidence: 99%

Noise Detection in Composite Signals by Analysing Signal Waveforms

Malhotra¹,

Singh²

2013

IJAIS

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The Composite Signals are the combination of multi utility signals, compressed signals and coded signals to carry the information from source to destination. This information may be a digital signal, video information or data signal required as an input for the destination module. Presently the Composite Signals are basic components of any signal transmission system. In this paper we present an approach to detect the noise in composite signals by analysing signal waveforms. General Terms

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An effective bilinear interpolation-based iterative chroma subsampling method for color images

Chung

Chen

2022

Multimed Tools Appl

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Compression of Bayer-Pattern Video Sequences Using Adjusted Chroma Subsampling

Cited by 35 publications

References 9 publications

Universal Chroma Subsampling Strategy for Compressing Mosaic Video Sequences With Arbitrary RGB Color Filter Arrays in H.264/AVC

Universal Chroma Subsampling Strategy for Compressing Mosaic Video Sequences With Arbitrary RGB Color Filter Arrays in H.264/AVC

Noise Detection in Composite Signals by Analysing Signal Waveforms

An effective bilinear interpolation-based iterative chroma subsampling method for color images

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