Development of 3D endoscope using high-luminance micro pattern projector and trial of measurement of human-body digestive organs

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H02779
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Life / Health / Medical informatics
• Research Institution: Hiroshima City University
• Principal Investigator: Furukawa Ryo 広島市立大学, 情報科学研究科, 准教授 (50295838)
• Co-Investigator(Kenkyū-buntansha): 田中 信治 広島大学, 病院(医), 教授 (00260670) ; 川崎 洋 九州大学, システム情報科学研究院, 教授 (80361393) ; 佐川 立昌 国立研究開発法人産業技術総合研究所, その他部局等, 研究員 (30362627)
• Research Collaborator: YOSHIDA Shigeto 広島鉄道病院 (00335689)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ３次元内視鏡 / 能動ステレオ法 / 形状計測 / 自己校正 / プロジェクタカメラ系

Outline of Final Research Achievements

We developed a pattern-light projector with ultra small size, with high brightness and long depth of focus, that can be passed through the instrument channel of normal endoscopes. Furthermore, we have developed 3D reconstruction algorithms based on active stereo methods, which is robust against subsurface scattering effects or over-exposure effects, which are typically occurs on bio-tissues lit by patterns with bright spots. By combining these results with ordinary endoscopes, we succeeded in measuring the shape of the surfaces inside stomach of a pig with the real scale.

Free Research Field

コンピュータビジョン