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Fast Block Matching Algorithm for Constrained One-Bit Transform-Based Motion Estimation Using Binomial Distribution

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3 Author(s)
Hanjin Park ; Dept. of Electron. & Comput. Eng., Hanyang Univ., Seoul, South Korea ; Changryoul Choi ; Jechang Jeong

Many fast block-matching algorithms (BMAs) reduce computational complexity by screening the number of checking points. Although many fast BMAs reduce computations, sometimes they should endure matching errors in comparison with full-search algorithm (FSA). In this paper, a novel fast BMA for constrained one-bit transform (C1BT)-based motion estimation is proposed in order to decrease the calculations of the block distortion measure. Unlike the classical fast BMAs, the proposed algorithm shows a new approach to reduce computations. It utilizes the binomial distribution based on the characteristic of binary plane which is composed of only two elements: 0 and 1. Experimental results show that the proposed algorithm keeps its peak signal-to-noise ratio (PSNR) performance very close to the FSA-C1BT while the computational complexity is reduced considerably.

Published in:

Digital Image Computing Techniques and Applications (DICTA), 2011 International Conference on

Date of Conference:

6-8 Dec. 2011

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