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Related Experiment Video

Updated: May 15, 2026

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3D reconstruction in laparoscopy with close-range photometric stereo.

Toby Collins1, Adrien Bartoli

  • 1ALCoV-ISIT, CNRS and Université d'Auvergne, Clermont-Ferrand, France. Toby.Collins@gmail.com

Medical Image Computing and Computer-Assisted Intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
|January 5, 2013
PubMed
Summary

This study introduces the first 3D reconstruction method for monocular laparoscopy using Photometric Stereo (PS). The technique enables dense, absolute depth computation from single images with minimal hardware changes.

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Area of Science:

  • Medical Imaging
  • Computer Vision
  • Surgical Technology

Background:

  • Monocular laparoscopy lacks depth information crucial for surgical procedures.
  • Existing 3D reconstruction methods often require complex setups or multiple cameras.

Purpose of the Study:

  • To develop a novel 3D reconstruction method for monocular laparoscopy.
  • To adapt Photometric Stereo (PS) for close-range surgical imaging with minimal hardware modification.

Main Methods:

  • Utilized Photometric Stereo (PS) with modified illumination via color filters at the laparoscope tip.
  • Developed new theory and practical solutions for applying PS in confined, close-range imaging.
  • Computed dense, absolute depth from single images without correspondence estimation.

Main Results:

  • Successfully achieved 3D reconstruction in monocular laparoscopy using the proposed PS method.
  • Demonstrated accurate depth computation from single images under surgical conditions.
  • Validated the approach through ex-vivo and in-vivo experiments.

Conclusions:

  • The presented Photometric Stereo (PS) approach offers a viable solution for 3D reconstruction in monocular laparoscopy.
  • Minimal hardware modification makes this technique adaptable to existing laparoscopic equipment.
  • The method provides dense, absolute depth information, enhancing surgical visualization.