based coding

Convolutional sparse coding improves on the standard approximation by incorporating a global shift-invariant model. The most efficient convolutional methods are based alternating direction method of multipliers and convolution theorem. only major difference between these is how they approach least-squares fitting subproblem. This letter presents solution to this subproblem, which efficiency sta...

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Sprite Coding in Object-based Video Coding Standard: MPEG-4

2001

Hiroshi Watanabe Kumi Jinzenji

This paper outlines a new standard video compression technology: MPEG-4. We propose a very efficient coding scheme using the one of compression tools of MPEG-4 “Sprite coding”. We first introduce MPEG-4 visual “Profiles”, which are sets of tools (technical elements) that realize certain types of applications. Among these “Profiles”, “Main Profile” is capable of using “Sprites” i.e. a unified ba...

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Context-based entropy coding in AVS video coding standard

Journal: :Sig. Proc.: Image Comm. 2009

Li Zhang Qiang Wang Ning Zhang Debin Zhao Xiaolin Wu Wen Gao

In this paper, two context-based entropy coding schemes for AVS Part-2 video coding standard are presented. One is Context-based 2D Variable Length Coding (C2DVLC) as a low complexity entropy coding scheme for AVS Part-2 Jizhun profile. C2DVLC uses multiple 2D-VLC tables to exploit the statistical features of DCT coefficients for higher coding efficiency. Exponential–Golomb codes are applied in...

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