Yuki KOJIMA

A Study of the Near-Lossless Mode in JPEG-LS —Acceleration of Scalar Quantizer by GPGPU—
Yasuharu SHIBATA  Yuki KOJIMA  Kazuki KYAKUNO  Ryuji TOKUNAGA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2013/01/01
Vol. J96-A  No. 1  pp. 67-70
Type of Manuscript: LETTER
Category: 
Keyword: 
image coding,  lossless image compression,  near-lossless image compression,  JPEG-LS,  GPGPU, 
  Summary |  Full Text(in Japanese):PDF (304.1KB)
Composition of the Optimal Interpolation Filter to the Pixel Processed by Average Pixel Method
Kazuyoshi MORIYA  Yuki KOJIMA  Kazuki KYAKUNO  Ryuji TOKUNAGA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2012/12/01
Vol. J95-A  No. 12  pp. 822-825
Type of Manuscript: LETTER
Category: 
Keyword: 
image filter,  area averaging method,  lanczos filter,  frequency characteristics, 
  Summary |  Full Text(in Japanese):PDF (277.4KB)
Designing Average Preservation Image Filters in Terms of Trigonometric Polynomial
Yuki KOJIMA  Kazuki KYAKUNO  Ryuji TOKUNAGA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2012/11/01
Vol. J95-A  No. 11  pp. 773-782
Type of Manuscript: PAPER
Category: 
Keyword: 
AC component prediction,  image filter,  Bi-cubic,  trigonometric polynomial, 
  Summary |  Full Text(in Japanese):PDF (1.4MB)
Improving Average Preservation Image Filters Based on AC Component Prediction -- Image Sharpening in Terms of Deringing Filter --
Yuki KOJIMA  Kazuki KYAKUNO  Ryuji TOKUNAGA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2011/03/01
Vol. J94-A  No. 3  pp. 218-221
Type of Manuscript: LETTER
Category: 
Keyword: 
AC component prediction,  image filter,  bi-cubic,  deringing, 
  Summary |  Full Text(in Japanese):PDF (265.9KB)
Improving Average Preservation Image Filters Based on AC Component Prediction--Removing Distortions Caused by Over-Undershoot--
Kazuyoshi MORIYA  Yuki KOJIMA  Kazuki KYAKUNO  Ryuji TOKUNAGA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2010/06/01
Vol. J93-A  No. 6  pp. 433-439
Type of Manuscript: LETTER
Category: 
Keyword: 
AC component prediction,  image filter,  bi-linear filter,  bi-cubic filter,  over-undershoot, 
  Summary |  Full Text(in Japanese):PDF (262.3KB)
Improving Average Preservation Image Filters Based on AC Component Prediction --Analysis in termes of a One Parameter Family--
Yuki KOJIMA  Kazuyoshi MORIYA  Yusuke HOSHIZUKI  Kazuki KYAKUNO  Ryuji TOKUNAGA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2009/12/01
Vol. J92-A  No. 12  pp. 999-1008
Type of Manuscript: PAPER
Category: 
Keyword: 
AC component prediction,  image filter,  bi-linear,  bi-cubic filter, 
  Summary |  Full Text(in Japanese):PDF (463.4KB)
Designing Average Preservation Image Filters Based on AC Component Prediction
Kazuyoshi MORIYA  Yusuke HOSHIZUKI  Yuki KOJIMA  Kazuki KYAKUNO  Ryuji TOKUNAGA 
Publication:   A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)
Publication Date: 2009/09/01
Vol. J92-A  No. 9  pp. 644-650
Type of Manuscript: LETTER
Category: 
Keyword: 
AC component prediction,  image filter,  Bi-linear,  Bi-cubic filter, 
  Summary |  Full Text(in Japanese):PDF (309.4KB)