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Featured researches published by Narihiro Matoba.


international conference on consumer electronics | 2006

Advanced demosaicing methods based on the changes of colors in a local region

Shotaro Moriya; Junko Makita; Tetsuya Kuno; Narihiro Matoba; Hiroaki Sugiura

A large number of demosaicing methods using a directional or adaptive color correlation have been suggested. In such conventional methods, however, there is the problem of artifacts occurring on the edges of color boundaries. In the advanced demosaicing method we propose, demosaicing is carried out on the basis of the results obtained from the analysis of the changes of color signals in a local region. Using image simulation, we confirmed the artifact noise generated in the conventional method had been reduced by the advanced demosaicing method.


Archive | 2003

Color correction device and color correction method

Mariko Takahashi; Narihiro Matoba


Archive | 2001

Encoding apparatus, decoding apparatus, encoding method, and decoding method

Tomohiro Kimura; Ikuro Ueno; Taichi Yanagiya; Masayuki Yoshida; Fumitaka Ono; Narihiro Matoba; Kunio Mitsubishi Denki K.K. Ueda


Archive | 2001

Color characteristic description apparatus, color management apparatus, image conversion apparatus and color correction method

Tsuneo Sato; Mariko Takahashi; Narihiro Matoba; Hiroaki Sugiura; Shuichi Kagawa; Masayuki Saito


Archive | 2003

Image-Correction Method and Image Pickup Apparatus

Takeo Fujita; Narihiro Matoba


Archive | 1991

Rewriteable recording/display apparatus and method of erasing record

Niro Watanabe; Yoshihiro Hino; Masashi Tamura; Masaru Ohnishi; Keiki Yamada; Takashi Hiroishi; Narihiro Matoba


Archive | 2005

Pixel signal processor and pixel signal processing method

Tetsuya Kuno; Junko Makita; Hiroaki Sugiura; Narihiro Matoba; Masashi Tamura


Archive | 1997

Image coding apparatus for converting image information to variable length codes of predetermined code size, method of image coding and apparatus for storing/transmitting image

Toshiyuki Takahashi; Narihiro Matoba; Shinichiro Ohashi


Archive | 1995

Image processing device, for use in scanner, printer, digital copying machine and display device

Narihiro Matoba; Masaru Onishi


Archive | 1994

Image data compression-expansion circuit

Narihiro Matoba; Masaru Ohnishi; Masaaki Tanioka; Yukio Kodama; Yoshifumi Imanaka; Hiroaki Furuta; Eisaku Tomita

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