NDLI: Perception-based quantitative definition of temporal pumping artifact

Content Provider	IEEE Xplore Digital Library
Author	Yanchao Gong Shuai Wan Kaifang Yang Bo Li Hong Ren Wu
Copyright Year	2014
Description	Author affiliation: Sch. of Electr. & Comput. Eng., R. Melbourne Inst. of Technol. Univ., Melbourne, VIC, Australia (Hong Ren Wu) \|\| Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi'an, China (Yanchao Gong; Shuai Wan; Kaifang Yang; Bo Li)
Abstract	Temporal noises or distortions, such as flickering, jerkiness, and mosquito noise, have been studied for many years in video coding, but a completely mathematical definition describing the perception characters of these temporal noises has not been investigated nor established. In this paper, a distinct type of temporal coding distortion, i.e., the temporal pumping artifact (TPA) is addressed, which manifests itself as visually annoying pumping and stumbling effects caused by applying inappropriate quantization parameter assignment in the state-of-the-art video coding standards with the hierarchical prediction structure. In this paper, the TPA is treated as a spatio-temporal signal and a detailed and comprehensive perception-based quantitative definition in terms of its phase, amplitude, and frequency, respectively is given for the fist time. It is both useful for understanding, or proposing algorithms to alleviate, or even eliminate the TPA and useful for the related studies for other temporal noises or distortions.
Starting Page	870
Ending Page	875
File Size	653527
Page Count	6
File Format	PDF
ISBN	9781479946129
ISSN	21653577
DOI	10.1109/ICDSP.2014.6900792
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video sequences Noise Distortion measurement Digital signal processing Distortion Video coding Fluctuations video coding temporal pumping artifact quantization parameter assignment hierarchical prediction structure human visual system
Content Type	Text
Resource Type	Article

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