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Automatic View-Point Selection for Inter-Operative Endoscopic Surveillance

lib:f4cc478db6696a59 (v1.0.0)

Authors: Anant S. Vemuri,Stephane A. Nicolau,Jacques Marescaux,Luc Soler,Nicholas Ayache
ArXiv: 1610.04097
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Abstract URL: http://arxiv.org/abs/1610.04097v1


Esophageal adenocarcinoma arises from Barrett's esophagus, which is the most serious complication of gastroesophageal reflux disease. Strategies for screening involve periodic surveillance and tissue biopsies. A major challenge in such regular examinations is to record and track the disease evolution and re-localization of biopsied sites to provide targeted treatments. In this paper, we extend our original inter-operative relocalization framework to provide a constrained image based search for obtaining the best view-point match to the live view. Within this context we investigate the effect of: the choice of feature descriptors and color-space; filtering of uninformative frames and endoscopic modality, for view-point localization. Our experiments indicate an improvement in the best view-point retrieval rate to [92%,87%] from [73%,76%] (in our previous approach) for NBI and WL.

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