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Prof. Koichi Takagi
at KDDI Research Inc
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Publications (4)
Proceedings Article | 11 February 2011 Paper
Contrast-enhancing and deterministic tone mapping method in natural image hiding scheme using halftone images
Proceedings Volume 7880, 78800Z (2011) https://doi.org/10.1117/12.872709
KEYWORDS: Halftones, Image quality, Image processing, Visualization, Binary data, Image compression, Image forensics, Image enhancement, Diffusion, Transform theory
Proceedings Article | 7 February 2011 Paper
Automatic image selection scheme utilizing comments for insertion of images into weblogs
Tomoaki Konno, Emi Myodo, Koichi Takagi, Ryoichi Kawada
Proceedings Volume 7879, 78790J (2011) https://doi.org/10.1117/12.872956
KEYWORDS: Image retrieval, Video, Image analysis, Internet, Luminescence, Image enhancement, Databases, Image acquisition, Electromagnetic coupling, Printing
Proceedings Article | 23 June 2003 Paper
FGS encoder for efficiency improvement and decoder for drift reduction
Kenji Matsuo, Koichi Takagi, Atsushi Koike, Shuichi Matsumoto
Proceedings Volume 5150, (2003) https://doi.org/10.1117/12.502769
KEYWORDS: Video, Binary data, Computer programming, Video coding, Computer simulations, Motion estimation, Image quality, Signal to noise ratio, Signal attenuation, Image processing
Proceedings Article | 23 June 2003 Paper
A study on rate distortion optimization scheme for JVT coder
Koichi Takagi, Yasuhiro Takishima, Yasuyuki Nakajima
Proceedings Volume 5150, (2003) https://doi.org/10.1117/12.503316
KEYWORDS: Distortion, Quantization, Computer programming, Motion estimation, Computer simulations, Video coding, Optimization (mathematics), Video, Motion models, Video processing
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