Virtual scale function of gastrointestinal endoscopy for accurate polyp size estimation in real-time: a preliminary study

Polyp size is important for selecting the surveillance interval or treatment policy. Nevertheless, it is challenging to accurately estimate the polyp size during endoscopy. An easy and cost-effective function to assist in polyp size estimation is required.To propose a virtual scale function for endoscopy and evaluate its performance and expected accuracy.An adaptive virtual scale behavior was demonstrated. The measurement error of the virtual...