Presentation	2006/6/9 Bit-Length Expansion for Digital Images Ichiro YAMAGISHI, Akira TAGUCHI,
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Abstract(in English)	Bit-length of digital images is decided by the Analog to Digital (AD) converter. The bit-length expansion technique is necessity for high-quality display such as the LCD display and the plasma display. Moreover, bit-length expansion is also necessary for low-bit length images, which are observed the pseudo-contour. In this paper, we propose a bit-length expansion method from M-level to N-level (N=3(M-1)+1). This operation means that two quantization-levels are introduced between existing levels. We show that the proposed method can remove pseudo-contour of digital images through a lot of application results.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Quantization / pseudo-contour / AD conversion
Paper #	SIS2006-14
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Conference Information
Committee	SIS
Conference Date	2006/6/9(1days)
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Paper Information
Registration To	Smart Info-Media Systems (SIS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Bit-Length Expansion for Digital Images
Sub Title (in English)
Keyword(1)	Quantization
Keyword(2)	pseudo-contour
Keyword(3)	AD conversion
1st Author's Name	Ichiro YAMAGISHI
1st Author's Affiliation	Department of Electrical and Electronic Engineering, Musashi Institute of Technology()
2nd Author's Name	Akira TAGUCHI
2nd Author's Affiliation	Department of Electrical and Electronic Engineering, Musashi Institute of Technology
Date	2006/6/9
Paper #	SIS2006-14
Volume (vol)	vol.106
Number (no)	96
Page	pp.pp.-
#Pages	6
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