Rate control for consistent visual quality of H.264/AVC encoding

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)20-33
Journal / PublicationSignal Processing: Image Communication
Volume28
Issue number1
Publication statusPublished - Jan 2013

Abstract

In this paper, a novel rate control scheme with sliding window basic unit is proposed to achieve consistent or smooth visual quality for H.264/AVC based video streaming. A sliding window consists of a group of successive frames and moves forward by one frame each time. To make the sliding window scheme possible for real-time video streaming, the initial encoder delay inherently in a video streaming system is utilized to generate all the bits of a window in advance, so that these bits for transmission are ready before their due time. The use of initial encoder delay does not introduce any additional delay in video streaming but benefits visual quality as compared to traditional one-pass rate control algorithms of H.264/AVC. Then, a Sliding Window Buffer Checking (SWBC) algorithm is proposed for buffer control at sliding window level and it accords with traditional buffer measurement of H.264/AVC. Extensive experimental results exhibit that higher coding performance, consistent visual quality and compliant buffer constraint can be achieved by the proposed algorithm. © 2012 Elsevier B.V.

Research Area(s)

  • Consistent/smooth visual quality, Rate control, Sliding window, Video coding, Video streaming

Citation Format(s)

Rate control for consistent visual quality of H.264/AVC encoding. / Xu, Long; Kwong, Sam; Wang, Hanli; Zhao, Debin; Gao, Wen.

In: Signal Processing: Image Communication, Vol. 28, No. 1, 01.2013, p. 20-33.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review