Isao FURUKAWA


Comparative Study on Required Bit Depth of Gamma Quantization for Digital Cinema Using Contrast and Color Difference Sensitivities
Junji SUZUKI Isao FURUKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/08/01
Vol. E96-A  No. 8  pp. 1759-1767
Type of Manuscript:  PAPER
Category: Image
Keyword: 
digital cinemahuman visual systemcontrast sensitivity functionquantization bit depthcolor differenceCIE 1976 L* a*b*CIEDE2000
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Theoretical Investigation on Required Number of Bits for Monochrome Density Images on High-Luminance Electronic Display
Junji SUZUKI Isao FURUKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/08/01
Vol. E90-A  No. 8  pp. 1713-1716
Type of Manuscript:  LETTER
Category: Image
Keyword: 
medical X-ray imagesmodified Weber modelhuman visual systemquantizing resolution
 Summary | Full Text:PDF(204.6KB)

Required Number of Quantization Bits for CIE XYZ Signals Applied to Various Transforms in Digital Cinema Systems
Junji SUZUKI Isao FURUKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/05/01
Vol. E90-A  No. 5  pp. 1072-1084
Type of Manuscript:  PAPER
Category: Image
Keyword: 
digital cinemaquantizationcolor differenceXYZ signalCIE 1976 L*a*b*
 Summary | Full Text:PDF(972.4KB)

Analysis and Evaluation of Required Precision for Color Images in Digital Cinema Application
Junji SUZUKI Isao FURUKAWA Sadayasu ONO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/12/01
Vol. E87-A  No. 12  pp. 3409-3419
Type of Manuscript:  PAPER
Category: Image
Keyword: 
color imagecolor differencequantizationuniform color spacerequired precision
 Summary | Full Text:PDF(1.5MB)

Subband Coding of Super High Definition Images Using Entropy Coded Vector Quantization
Mitsuru NOMURA Isao FURUKAWA Tetsurou FUJII Sadayasu ONO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/07/25
Vol. E75-A  No. 7  pp. 861-870
Type of Manuscript:  Special Section PAPER (Special Section on Multidimensional Signal Processing)
Category: Image Coding and Compression
Keyword: 
image codingsuper high definition imagesubband codingvector quantization
 Summary | Full Text:PDF(1.3MB)