### 抜粋

This paper describes an approach to reconstructing a shape from it's shaded image in the case where a point light source is at the projection center. This condition well approximates the imaging system of an endoscope. In this case, the image gray level depends on not only the gradient of the object surface but also the distance from the light source to each point on the surface. To deal with this difficulty, we introduce the evolution equation for equal-range contours on the surface. Propagating this contour by solving the equation, we can reconstruct a shape. Experimental results for real medical endoscope images of a human stomach inner wall show feasibility of this method, and present a promising technique for morphological analysis of tumors on human inner organs.

元の言語 | English |
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ページ | 290-298 |

ページ数 | 9 |

出版物ステータス | Published - 1996 1 1 |

外部発表 | Yes |

イベント | Proceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis - San Francisco, CA, USA 継続期間: 1996 6 21 → 1996 6 22 |

### Other

Other | Proceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis |
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市 | San Francisco, CA, USA |

期間 | 96/6/21 → 96/6/22 |

### ASJC Scopus subject areas

- Engineering(all)

## フィンガープリント Shape reconstruction from an endoscope image by shape-from-shading technique for a point light source at the projection center' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

*Shape reconstruction from an endoscope image by shape-from-shading technique for a point light source at the projection center*. 290-298. 論文発表場所 Proceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis, San Francisco, CA, USA, .