Takao NISHITANI

Transform Domain Shadow Removal for Foreground Silhouette
Toshiaki SHIOTA  Kazuki NAKAGAMI  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/03/01
Vol. E96-A  No. 3  pp. 667-674
Type of Manuscript: PAPER
Category: Digital Signal Processing
Keyword: 
shadow removal,  foreground segmentation,  transform domain,  simplified algorithm, 
  Summary |  Full Text:PDF (1.5MB)
No-Reference Quality Estimation for Video-Streaming Services Based on Error-Concealment Effectiveness
Toru YAMADA  Yoshihiro MIYAMOTO  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/11/01
Vol. E95-A  No. 11  pp. 2007-2014
Type of Manuscript: Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Multimedia Environment Technology
Keyword: 
video quality estimation,  no reference,  realtime monitoring,  transmission error,  error concealment, 
  Summary |  Full Text:PDF (1.1MB)
No-Reference Quality Estimation for Compressed Videos Based on Inter-Frame Activity Difference
Toru YAMADA  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/08/01
Vol. E95-A  No. 8  pp. 1240-1246
Type of Manuscript: Special Section PAPER (Special Section on Image Media Quality)
Category: Quality Metrics
Keyword: 
video quality estimation,  no reference,  compressed videos,  activity, 
  Summary |  Full Text:PDF (717.7KB)
Reduced-Reference Video Quality Estimation Using Representative Luminance
Toru YAMADA  Yoshihiro MIYAMOTO  Masahiro SERIZAWA  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/05/01
Vol. E95-A  No. 5  pp. 961-968
Type of Manuscript: PAPER
Category: Measurement Technology
Keyword: 
video quality estimation,  reduced reference,  PSNR,  real-time monitoring,  low-bit-rate information extraction, 
  Summary |  Full Text:PDF (1.6MB)
Efficient Image Enhancement Algorithm Using Multi-Rate Image Processing
Takeshi OKUNO  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/05/01
Vol. E93-A  No. 5  pp. 958-965
Type of Manuscript: PAPER
Category: Image
Keyword: 
image enhancement,  retinex,  multi-scale retinex,  multi-rate signal processing,  pre-processing, 
  Summary |  Full Text:PDF (1.9MB)
Multiresolutional Gaussian Mixture Model for Precise and Stable Foreground Segmentation in Transform Domain
Hiroaki TEZUKA  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/03/01
Vol. E92-A  No. 3  pp. 772-778
Type of Manuscript: Special Section PAPER (Special Section on Latest Advances in Fundamental Theories of Signal Processing)
Category: 
Keyword: 
foreground segmentation,  Gaussian mixture model,  fine-to-coarse strategy,  Walsh transform,  variable block size, 
  Summary |  Full Text:PDF (715.9KB)
A Stereo Echo Canceler with Input Slides and Counter-Lateralization
Akihiko SUGIYAMA  Yann JONCOUR  Akihiro HIRANO  Takao NISHITANI  Gerard FAUCON 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/06/01
Vol. E89-A  No. 6  pp. 1776-1787
Type of Manuscript: PAPER
Category: Digital Signal Processing
Keyword: 
echo canceler,  stereo,  identification,  adaptive filter, 
  Summary |  Full Text:PDF (805.7KB)
Performance Evaluation of the AV CODEC on a Low-Power SPXK5SC DSP Core
Takahiro KUMURA  Norio KAYAMA  Shinichi SHIONOYA  Kazuo KUMAGIRI  Takao KUSANO  Makoto YOSHIDA  Masao IKEKAWA  Ichiro KURODA  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/06/01
Vol. E88-D  No. 6  pp. 1224-1230
Type of Manuscript: PAPER
Category: Image Processing and Video Processing
Keyword: 
MPEG-4,  DSP,  VLIW,  low-power, 
  Summary |  Full Text:PDF (848.5KB)
Low-Power Architectures for Programmable Multimedia Processors
Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/02/20
Vol. E82-A  No. 2  pp. 184-196
Type of Manuscript: INVITED PAPER (Special Section on VLSI for Digital Signal Processing)
Category: 
Keyword: 
multimedia processors,  SOC,  ASIC,  MPU,  DSP, 
  Summary |  Full Text:PDF (889.9KB)
Wavelet Picture Coding with Transform Coding Approach
Mutsumi OHTA  Mitsuharu YANO  Takao NISHITANI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/07/20
Vol. E75-A  No. 7  pp. 776-785
Type of Manuscript: INVITED PAPER (Special Section on Multidimensional Signal Processing)
Category: 
Keyword: 
transform coding,  subband coding,  orthonormal wavelet,  QMF,  CQF,  entropy coding,  picture coding, 
  Summary |  Full Text:PDF (896.3KB)
The Duo-Multiplication
Takao NISHITANI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1981/05/20
Vol. E64-E  No. 5  pp. 350-356
Type of Manuscript: PAPER
Category: Electronic Circuits
Keyword: 
  Summary |  Full Text:PDF (438.9KB)