Automatic detection method of lung cancers including ground-glass opacities from chest x-ray CT images

Toshiharu Ezoe; Hotaka Takizawa; Shinji Yamamoto; Akinobu Shimizu; Tohru Matsumoto; Yukio Tateno; Takeshi Iimura; Mitsuomi Matsumoto

doi:10.1117/12.467137

9 May 2002 Automatic detection method of lung cancers including ground-glass opacities from chest x-ray CT images

Toshiharu Ezoe, Hotaka Takizawa, Shinji Yamamoto, Akinobu Shimizu, Tohru Matsumoto, Yukio Tateno, Takeshi Iimura, Mitsuomi Matsumoto

Author Affiliations +

Proceedings Volume 4684, Medical Imaging 2002: Image Processing; (2002) https://doi.org/10.1117/12.467137
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

In this paper, we described an algorithm of automatic detection of ground glass opacities (GGO) from X-ray CT images. In this algorithm, at first, pathological shadow candidates are extracted by our variable N-Quoit filter which is a kind of mathematical morphology filter. Next, shadow candidates are classified into some classes using feature values calculated from the shadow candidates. By using discriminate functions, at last, shadow candidates are discriminated between normal shadows and abnormal ones. This method was examined by 38 samples (including GGO's shadows) of chest CT images, and proved to be very effective.

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Toshiharu Ezoe, Hotaka Takizawa, Shinji Yamamoto, Akinobu Shimizu, Tohru Matsumoto, Yukio Tateno, Takeshi Iimura, and Mitsuomi Matsumoto "Automatic detection method of lung cancers including ground-glass opacities from chest x-ray CT images", Proc. SPIE 4684, Medical Imaging 2002: Image Processing, (9 May 2002); https://doi.org/10.1117/12.467137

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