An Image Coding Scheme by DPCM Involving Variable Density Sampling
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- Tsuchiya Katsumi
- Faculty of Engineering,Kobe University
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- Koda Hiromu
- Faculty of Engineering,Kobe University
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- Tanaka Hatsukazu
- Faculty of Engineering,Kobe University
Bibliographic Information
- Other Title
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- 可変密度標本化DPCMを用いた画像の一符号化方式
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Description
Differential pulse code modulation(DPCM)is a well-known simple and easy implementable coding scheme of images,which keeps high visual quality in high bit rates.However,in low bit rates,it is difficult to keep high visual quality.In this paper we propose a new image coding scheme by DPCM involving variable density sampling and optimal source coding for Laplacian distributed signals.The computer simulated results show that the proposed scheme is superior to ADCT in SNR and will be applicable to practical systems.
Journal
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- IEICE technical report. Information theory
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IEICE technical report. Information theory 93 (128), 35-38, 1993-07-08
The Institute of Electronics, Information and Communication Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1573387452167908096
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- NII Article ID
- 110003197343
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- NII Book ID
- AN10013083
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- Text Lang
- ja
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- Data Source
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- CiNii Articles
