1 July 2008 Noise-robustness improvement of the H.264 video coder
Khalil Hachicha, Patrick F. Garda
Author Affiliations +
Abstract
When sequence noise increases, the prediction process in the H.264 advanced video coding (AVC) encoder becomes less efficient. The residue resulting from the difference between the matching macroblocks in the frame coded in predictive mode and the best reference frame increases dramatically. To solve this problem, we propose to embed in the H.264/AVC encoder a motion detection technique based on the Markov random fields algorithm, which relies on robust moving pixel segmentation and reduces the luminance variation that results more often from noise rather than motion. This algorithm needs three reference frames to detect real motion between matching macroblocks, and it allows a decrease in bit rate while maintaining the compressed sequence quality.
©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)
Khalil Hachicha and Patrick F. Garda "Noise-robustness improvement of the H.264 video coder," Journal of Electronic Imaging 17(3), 033019 (1 July 2008). https://doi.org/10.1117/1.2987724
Published: 1 July 2008
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CITATIONS
Cited by 6 scholarly publications.
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KEYWORDS
Video

Digital signal processing

Video compression

Binary data

Motion estimation

Computer programming

Detection and tracking algorithms

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