Performance Evaluation of Lossless/Lossy Wavelets for Image Compression under Lossless/Lossy Coding Criterion(Special Section on Digital Signal Processing)
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概要
- 論文の詳細を見る
In this paper, we propose lossless/lossy coding criterion as a new objective criterion to theoretically evaluate coding performance of the lossless/lossy wavelet (LLW). The proposed lossless/lossy coding criterion consists of three parameters: "lossless coding criterion," "quantization-lossy coding gain" and "rounding errors." The first parameter is a criterion to evaluate lossless coding performance of the LLW, whereas the second and the third parameters are criteria to evaluate lossy coding performance of the LLW at low bit rate and high bit rate, respectively. Relation among those three parameters is clearly illustrated in this paper. Performances of 15 kinds of the LLW are measured with two-dimensional (2D) octave-decomposition by applying some standard images and 2D AR(l) model as input signals.
- 社団法人電子情報通信学会の論文
- 2002-08-01
著者
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IWAHASHI Masahiro
Department of Internal Medicine, Saiseikai-Hita Hospital
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Iwahashi Masahiro
Department Of Electrical Engineering Nagaoka University Of Technology
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Iwahashi Masahiro
Department Of Electrical Engineering Faculty Of Engineering Nagaoka University Of Technology
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CHOKCHAITAM Somchart
Department of Electrical Engineering, Nagaoka University of Technology
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Chokchaitam Somchart
Department Of Electrical Engineering Nagaoka University Of Technology
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