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Multilevel Block Truncation Coding of Two Steps Searching

Wen-Jan CHEN

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Summary :

In this letter, a new scheme of designing multilevel BTC coding is proposed. The optimal quantization can obtain by selecting the quantization threshold with an exhaustive search. However, it requires an enormous amount of computation and is thus impractical while we take an exhaustive search for the multilevel BTC. A two-steps searching method is applied to reduce the computational complexity. Comparisons of results with various methods have verified that the proposed method approach to the optimal quantization with little computation complexity.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E84-A No.8 pp.1977-1980
Publication Date
2001/08/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section LETTER (Special Section on Digital Signal Processing)
Category
Image/Visual Signal Processing

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