Collins Toby, Bartoli Adrien
ALCoV-ISIT, CNRS and Université d'Auvergne, Clermont-Ferrand, France.
Med Image Comput Comput Assist Interv. 2012;15(Pt 2):634-42. doi: 10.1007/978-3-642-33418-4_78.
In this paper we present the first solution to 3D reconstruction in monocular laparoscopy using methods based on Photometric Stereo (PS). Our main contributions are to provide the new theory and practical solutions to successfully apply PS in close-range imaging conditions. We are specifically motivated by a solution with minimal hardware modification to existing laparoscopes. In fact the only physical modification we make is to adjust the colour of the laparoscope's illumination via three colour filters placed at its tip. Once calibrated, our approach can compute 3D from a single image, does not require correspondence estimation, and computes absolute depth densely. We demonstrate the potential of our approach with ground truth ex-vivo and in-vivo experimentation.
在本文中，我们提出了首个基于光度立体视觉（PS）方法的单目腹腔镜三维重建解决方案。我们的主要贡献在于提供了新理论和实际解决方案，以成功地将PS应用于近距离成像条件。我们特别受一种对现有腹腔镜硬件改动最小的解决方案所驱动。实际上，我们所做的唯一物理改动是通过放置在腹腔镜尖端的三个滤色片来调整其照明颜色。一旦校准，我们的方法可以从单幅图像计算三维，不需要对应估计，并且能密集地计算绝对深度。我们通过离体和活体的真实实验展示了我们方法的潜力。
