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122 results on '"Oda, Masashi"'

18. Effect of choice of treatment modality on the incidence of shunt-dependent hydrocephalus after aneurysmal subarachnoid hemorrhage

Author

Koyanagi, Masaomi, primary, Fukuda, Hitoshi, additional, Saiki, Masaaki, additional, Tsuji, Yoshihito, additional, Lo, Benjamin, additional, Kawasaki, Toshinari, additional, Ioroi, Yoshihiko, additional, Fukumitsu, Ryu, additional, Ishibashi, Ryota, additional, Oda, Masashi, additional, Narumi, Osamu, additional, Chin, Masaki, additional, Yamagata, Sen, additional, and Miyamoto, Susumu, additional

Published
2019
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27. An Eye-Contour Extraction Algorithm from Face Image usingDeformable Template Matching

Author

Funabiki, Nobuo, Isogai, Megumi, Higashino, Teruo, and Oda, Masashi

Subjects
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Abstract

A variety of studies on face components such as eyes, lips, noses, and teeth have been proceeding in medicine, psychology, biometrics authentication, and other areas. In this paper, we present an algorithm of extracting eye contours from a face image using the deformable template matching method. Our template for an eye contour is composed of three quadratic functions for the perimeter and one circle for the pupil. In our algorithm, a digital color face image is rst converted to a binary image of representing eyes, after the region around eyes is identied on the face image by using hues and values of the color image. Then, parameters in the template are optimized by a local search method with a tabu period and a hill-climbing, so as to t the template to the eye contour in the binary image. The accuracy of our algorithm is evaluated through sample face images of students. In addition, the application of our proposal to eye shape indices is investigated in a face image database "HOIP", where recognizable dierence exists in index distributions between males and females.

Published
2006

38. Corrosion Resistance of Titanium for Nuclear Waste Container in Non-oxidizing Condition (II)

Author

Wada, Ryutaro, Nishimura, Tsutomu, Shimogori, Kazutoshi, Tomari, Haruo, Masugata, Tsuyoshi, Shimoda, Hideaki, Fujiwara, Kazuo, Nishimoto, Hidetoshi, and Oda, Masashi

Abstract

チタンは高耐食性金属としてオーバーパック候補材量の一つとされている。本研究では地下深部本来の環境とされる還元性環境における水素脆化挙動を明らかにすることを目的として、50$^{\circ}C$の脱気炭酸塩溶液含浸ベントナイト中ならびに炭酸塩溶液中において1440時間までの電気化学的試験を行い、チタンの還元性環境における腐食電位と水素吸収との関係について検討した。また、文献調査を行い、水素脆化モデルならびに腐食電位評価モデルの考え方をとりまとめた。さらに、炭素鋼オーバーパックの微生物腐食に関してベントナイト中での微生物の繁殖挙動とともに好気性/嫌気性細菌混合系の腐食への影響を調べた。その結果、硫酸塩還元菌は圧縮ベントナイト中では生育し難いことが判った。また、混合系(SRB/IB)でのベントナイト中の炭素鋼の腐食速度は昨年度のIB単独系とほぼ同様0.02㎜/y以下であることが判った。, None

Published
1998

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