摘要：Wireless capsule endoscopy is a modern imaging technique used for the overall investigation of the gastrointestinal tract, indicated for the detection of occult gastrointestinal bleeding, polyps, Chron’s disease, tumours or other lesions. Among those, polyps represent a category of lesions difficult to discriminate from the normal mucosa. Most of the algorithms proposed for automatic polyp detection relay on retrieving geometric details, followed by a textural analysis of the detected region, most of the times combined with the corresponding colour analysis (with a smaller weight), and a subsequent classification either on particular regions or the entire image. Usually, all image descriptors are involved in the decision making, for which several learning / decision algorithms are employed. The entire process is developed according to the human analysis process, but it takes into account the powerful computation capabilities of nowadays computers and processing algorithms
