An efficient matrix-based DCT splitter/merger for MPEG-2-to-AVC/H.264 transform kernel conversion
Resource
IEEE Transactions on Circuits and Systems for Video Technology 17 (1): 120-125
Journal
IEEE Transactions on Circuits and Systems for Video Technology
Journal Volume
17
Journal Issue
1
Pages
120-125
Date Issued
2007
Author(s)
Chuang, Y.-J.
Abstract
An efficient matrix-based discrete cosine transform splitter/merger for realizing MPEG-2 to AVC/H.264 transform kernel conversion is presented in this paper. Due to its matrix-based nature, the proposed transform kernel converter can be readily implemented by specific multimedia instruction set available today. Both the computational complexity and numerical error behavior of the proposed approach are shown to be superior to that of the straightforward (full decoding + reencoding) one. In other words, the effectiveness of the proposed algorithm can be justified by examining both the execution speed and the reproduced image quality. © 2007 IEEE.
Subjects
DCT splitter/merger; Discrete cosine transform (DCT); MPEG-2-to-AVC/H.264 transform kernel conversion
Other Subjects
DCT splitter/merger; Discrete cosine transform (DCT); MPEG-2-to-AVC/H.264 transform kernel conversion; Computational complexity; Error analysis; Image coding; Image quality; Motion pictures; Multimedia systems; Wavelet transforms; Cosine transforms
Type
journal article
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