Institution of Engineering and Technology;Stevenage: Institution of Engineering and Technology
摘要:
摘要： This research proposes a complexity control mechanism that is composed of two algorithms to minimise the distortion of each encoded video frame under the computational complexity constraint and the rate constraint. The first proposed algorithm performs optimal complexity allocation among encoding tools based on a new complexity-rate-distortion (C-R-D) model. This model precisely describes how each encoding tool influences the C-R-D performance of the encoder with concise formulas. Accordingly, the algorithm obtains the optimal complexity of each encoding tool by a closed-form solution with small complexity overhead. Based on a new C-D model of motion estimation, this work proposes the second algorithm that performs optimal complexity allocation among macro-blocks to further allocate suitable complexity to each macro-block. The experiments performed on a software-optimised source code show that these two algorithms yield superior performance to the existing algorithms. 出版者： Stevenage: Institution of Engineering and Technology 出版日期： 2012-02-01 出處： IET image processing, 2012-02, Vol.6 (1), p.60-71 版權： 2015 INIST-CNRS 版權： Copyright The Institution of Engineering & Technology Feb 2012 識別號： ISSN: 1751-9659 識別號： EISSN: 1751-9667 識別號： DOI: 10.1049/iet-ipr.2010.0149
