Joint Brightness and Tone Stabilization of Capsule Endoscopy Videos

Pill endoscopy cameras generate hours-long videos that need to be manually inspected by medical specialists. Technical limitations of pill cameras often create large and uninformative color variations between neighboring frames, which make exploration more difficult. To increase the exploration efficiency, we propose an automatic method for joint intensity and hue (tone) stabilization that reduces such artifacts. Our method works in real time, has no free parameters, and is simple to implement. We thoroughly tested our method on several real world videos and quantitatively and qualitatively assessed its results and optimal parameter values by both image quality metrics and user studies. Both types of comparisons strongly support the effectiveness, ease-of-use, and added value claims for our new method.