Authors: Anant S. Vemuri,Stephane A. Nicolau,Jacques Marescaux,Luc Soler,Nicholas Ayache
ArXiv: 1610.04097
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DOI
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.