Shape Reconstruction from Endoscopic Images
msra
摘要
Endoscopy is an important visualization tool in minimally invasive orthopedic surgery. During surgery an endoscope consisting of a camera and one or more light sources is inserted through a small incision into the body and the acquired images are analyzed. Due to the small field of view, only a small part of the bone and its occluding contour are visible in any single image, making a perception of bone shape from such images difficult. We present a novel technique to reconstruct the surface of the bone by applying shape-from-shading to a sequence of endoscopic images, with partial boundary in each image. We demonstrate the accuracy of our technique using simulations and experiments with artificial bones.
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