Tissue shape acquisition with a hybrid structured light and photometric stereo endoscopic system

Marco Visentini-Scarzanella, Tatsuya Hanayama, Ryunosuke Masutani, Shigeto Yoshida, Yoko Kominami, Yoji Sanomura, Shinji Tanaka, Ryo Furukawa, Hiroshi Kawasaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抜粋

In situ 3D reconstruction from endoscopic images is important to determine the correct course of action for, e.g., treatment of abnormal growths. Currently, the endoscopist has to rely solely on visual cues in order to infer the growth’s shape and size and determine an appropriate treatment. However, tissue uniformity and scale ambiguity from traditional monocular endoscopes make this visual assessment prone to errors and time consuming. We propose a practical system to densely reconstruct both shape and size of tissues with minimal modifications to a standard endoscope. We present a custom single-fiber structured light probe projecting a wave pattern on the tissue surface that allows semidense reconstruction with few ambiguities. Based on the coarse reconstruction, we retrieve the surface reflectance parameters according to a hybrid diffuse/specular model which are used to initialise a close-range Photometric Stereo reconstruction. By taking into account the tissue characteristics and the light fall-off, our Photometric Stereo formulation provides dense metric 3D shape information without the need for surface normal integration. A preliminary study was carried out both on phantoms and ex vivo samples of human tissue.

元の言語英語
ホスト出版物のタイトルComputer-Assisted and Robotic Endoscopy - 2nd International Workshop, CARE 2015, Held in Conjunction with MICCAI 2015, Revised Selected Papers
編集者Tobias Reichl, Austin Reiter, Xiongbiao Luo, Gian-Luca Mariottini, Xiongbiao Luo
出版者Springer Verlag
ページ46-58
ページ数13
ISBN(印刷物)9783319299648
DOI
出版物ステータス出版済み - 1 1 2016
外部発表Yes
イベント2nd International Workshop on Computer-Assisted and Robotic Endoscopy, CARE 2015 - Munich, ドイツ
継続期間: 10 5 201510 5 2015

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
9515
ISSN(印刷物)0302-9743
ISSN(電子版)1611-3349

その他

その他2nd International Workshop on Computer-Assisted and Robotic Endoscopy, CARE 2015
ドイツ
Munich
期間10/5/1510/5/15

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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  • これを引用

    Visentini-Scarzanella, M., Hanayama, T., Masutani, R., Yoshida, S., Kominami, Y., Sanomura, Y., Tanaka, S., Furukawa, R., & Kawasaki, H. (2016). Tissue shape acquisition with a hybrid structured light and photometric stereo endoscopic system. : T. Reichl, A. Reiter, X. Luo, G-L. Mariottini, & X. Luo (版), Computer-Assisted and Robotic Endoscopy - 2nd International Workshop, CARE 2015, Held in Conjunction with MICCAI 2015, Revised Selected Papers (pp. 46-58). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 9515). Springer Verlag. https://doi.org/10.1007/978-3-319-29965-5_5