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DCT-Based Subpixel-Accuracy Motion Estimation Utilizing Shifting Matrix
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 Title & Authors
DCT-Based Subpixel-Accuracy Motion Estimation Utilizing Shifting Matrix
Shin, Jae-Young; Ryu, Chul;
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 Abstract
The latest video compression standard (such as H.264/AVC and HEVC) utilizes quarter-pel accuracy motion estimation in order to retain detailed motion information. Many sub-pixel motion estimation algorithms used in the spatial domain usually encounters increment of computational complexity due to embedded interpolation algorithm. In this paper, an approach to measure sub-pixel accuracy motion estimation in frequency domain using shifting matrix is proposed. Complexity can be reduced utilizing shifting matrix algorithm in frequency domain and simulation results demonstrate not only higher PSNR but lower bit rates than spatial domain algorithms.
 Keywords
motion estimation;shifting matrix;H.264;
 Language
Korean
 Cited by
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