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Article type: Cover
1987 Volume 43 Issue 4 Pages
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Article type: Index
1987 Volume 43 Issue 4 Pages
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Article type: Index
1987 Volume 43 Issue 4 Pages
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Article type: Appendix
1987 Volume 43 Issue 4 Pages
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Article type: Appendix
1987 Volume 43 Issue 4 Pages
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Article type: Appendix
1987 Volume 43 Issue 4 Pages
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Article type: Appendix
1987 Volume 43 Issue 4 Pages
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Article type: Appendix
1987 Volume 43 Issue 4 Pages
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TAKASHI WAKAMATSU
Article type: Article
1987 Volume 43 Issue 4 Pages
447-452
Published: April 01, 1987
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The Loo and Doi paper reported that the signal-to-noise ratio of the matched filter model has a strong correlation with human visual detectability. Therefore, it can be thought that a human visual system is completely a self-matched situation or near this in relation to it's MTF and internal noise. In the upper Same condition of a visual system, optimum filter functions of image processing for more increasing detectability were derived. After studying a sufficient number of signal and noise patterns before detecting signals, if a human visual system is completely self-matched, the optimum filter function is the whitening noise filter. The whitening noise filter including an inverse number of visual MTF works as a sub-optinum filter, in the case of non-self-matched visual system. On the occasion of not knowing the to signal and noise, the matched filter including inverse number of a visual MTF is the optimum filter. As an application of the matched filter, for eliminating the background of an image, a similar subtraction filter function was derived.
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HIROHARU OKADA, KIMIO USAMI, UICHI KURAMATA, TAKASHI WAKAMATSU, KAZUYA ...
Article type: Article
1987 Volume 43 Issue 4 Pages
453-459
Published: April 01, 1987
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The recent developed anti-crossover film provides more improved sharpness, but less granurality. In that sense a monistic evaluation using conventional individual evaluating methods is difficult. Used with two kinds of screens, high-speed and low-speed, we compared the image characteristics of the crossover effect regarding anti-crossover film and conventional film of similar speeds, designed for a total evaluation of the image quality by introducing a number of noise- equivalent quanta (NEQ(u)). On the same system of the screen, but at a high frequency anti-crossover film possesses superior NEQ(u), when crossover film at a low frequency, but at a high frequency anti-crossover film possesses superior NEQ(u), when compared with conventional film. These results were in good agreement with the results that had been obtained from images of needles and beads, or ROC analysis.
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YOSHIHARU HIGASHIDA, NOBUYUKI MORIBE, YASUHIRO HIAI, SEISHI DODANUKI, ...
Article type: Article
1987 Volume 43 Issue 4 Pages
460-466
Published: April 01, 1987
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Modulation transfer functions (MTF's) of the screen-film systems which were measured at Kumamoto University, were compared with results obtained at the University of Chicago. There were two categories for the measurements. In the first category, the experimental results of MTF's analyzed at Kumamoto University using slit images and sensitometric strips prepared at the University of Chicago were compared with the results obtained at the University of Chicago. In the second category, measurement results of MTF's using slit images and sensitometric strips which were obtained at Kumamoto University with screens with the same brand name as those used at the University of Chicago with different serial numbers were compared with the University of Chicago's data. The results indicate that the MTF data for screen-film systems in both categories can be reproduced at different laboratories, within the experimental error.
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Article type: Appendix
1987 Volume 43 Issue 4 Pages
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OSAMU YAMASHITA, [in Japanese], [in Japanese], [in Japanese], [in Japa ...
Article type: Article
1987 Volume 43 Issue 4 Pages
467-
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Kouichi Fujino, Atsushi Takigawa, Takashi Matsumoto, Hideaki Takahashi
Article type: Article
1987 Volume 43 Issue 4 Pages
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Tatsuro Uto, Masanobu Uemura, Yoshiyuki Asai, Hisayuki Hashiba, Hideka ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Tokie Nagai, Takashi Wakamatsu, Kazuo Awai, Kazuo Sugumi, Kazuya Yamas ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yasuo Nakazawa, Shinji Sasamura, Toshihiro Oohashi, Kyouichi Katoh, Ma ...
Article type: Article
1987 Volume 43 Issue 4 Pages
471-
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Keizou Miyagoshi, Kimio Usami
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yoshiei Nagai
Article type: Article
1987 Volume 43 Issue 4 Pages
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[in Japanese], [in Japanese], [in Japanese]
Article type: Article
1987 Volume 43 Issue 4 Pages
474-
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Masaru Sakurai, Tatsuo Yoshikawa, Kazumi Ooshiro, Yoshiaki Nakagawa
Article type: Article
1987 Volume 43 Issue 4 Pages
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YOSHIAKI SUGAUCHI, NAOHIRO YOKOTA, NOBUHIKO SAITOH, SHINJI OKANO, ATSU ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yoshito Takao
Article type: Article
1987 Volume 43 Issue 4 Pages
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Sigeo Miyazaki, Sinya Kanezu, Hirosi Hayashi, Makoto Kousaka, Hirosi N ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yasuhiko Tohyama, Naoki Akagi, Hiroyuki Geshi, Kenji Itoh, Yoshihiko K ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Mitsuru Komizu, Masanari Hamatsu, Yasuyuki Ogawa
Article type: Article
1987 Volume 43 Issue 4 Pages
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Keisuke Kobayashi, Masaaki Kagawa, Masaaki Asai, Hiroshi Yasue
Article type: Article
1987 Volume 43 Issue 4 Pages
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Masaaki Kagawa, Keisuke Kobayashi, Hiroshi Yasue, Masaaki Asai
Article type: Article
1987 Volume 43 Issue 4 Pages
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Hiroshi Yasue, Keisuke Kobayashi, Masaaki Kagawa, Masaaki Asai
Article type: Article
1987 Volume 43 Issue 4 Pages
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Michio Ichikawa, Yuuji Ikeda, Mamoru Nakamura, Mituo Shintani, Makoto ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Kazuhiro Hayama, Masahiro Watanabe
Article type: Article
1987 Volume 43 Issue 4 Pages
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MAKOTO KOUSAKA, HIROSHI NISHIO, AKIRA TOBITA, ITARU YAMAMOTO
Article type: Article
1987 Volume 43 Issue 4 Pages
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Meguai Takayama, Masahiro Watanabe, Kazuhiro Hayama
Article type: Article
1987 Volume 43 Issue 4 Pages
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Katsumi Ikei, Akiyoshi Mizukoshi, Yukihiro Matsuda, Hiroshi Hashimoto
Article type: Article
1987 Volume 43 Issue 4 Pages
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Michimasa Honda
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1987 Volume 43 Issue 4 Pages
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
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1987 Volume 43 Issue 4 Pages
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Takashi Yoshida, Masanobu Katoh, Yoshiji Watanabe, Masayoshi Ikawa
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1987 Volume 43 Issue 4 Pages
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TOMOKAZU OKU, EISUI NAKAMURA, MASAO YONEZAWA, HIROSHI NISHIO, AKIRA TO ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Tsuyoshi Matsuda, Tohru Ikeno, Hiroyuki Komuro
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1987 Volume 43 Issue 4 Pages
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[in Japanese], [in Japanese]
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1987 Volume 43 Issue 4 Pages
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HAJIME ARAI, YOSHIHIRO IGARASHI, TAKASHI FUKUCHI, SUKETSUGU KUDOH, MAS ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Tsuyoshi Matsuda, Hiroyuki Komuro
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1987 Volume 43 Issue 4 Pages
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yoshimitsu Matsumura, Tadashi Mishiro, Masakuni Fujise, Kiyotaka Asahi ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yoshiaki Nakajima, Yukihiro Ootani, Futoshi Yoshino, Kinya Kishimoto, ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yukihiro Matsuda, Kazuhiro Masuda, Ryuichirou Satho, Akio Harada, Hiro ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Kazuhiro Masuda, Yukihiro Matsuda, Ryuichirou Satho, Akio Harada, Hiro ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Yukihiro Ohtani, Yoshiaki Nakajima, Futoshi Yoshino, Kinya Kishimoto, ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Futoshi Yoshino, Yukihiro Ohtani, Osamu Ueda, Kinya Kishimoto, Yoshiak ...
Article type: Article
1987 Volume 43 Issue 4 Pages
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Hideki Moriguchi, Takaharu Yoshinaga
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1987 Volume 43 Issue 4 Pages
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