Stryker Corporation
SYSTEMS AND METHODS FOR LOW-LIGHT IMAGE ENHANCEMENT

Abstract:

A method for enhancing low brightness regions in endoscopic video includes receiving a sequence of video frames captured during an endoscopic procedure; generating a brightness map for each frame of the sequence of video frames, wherein the brightness map is generated based on smoothing regional brightness in the respective frame based on regional brightness gradients, and generating in real-time an enhanced sequence of video frames by adjusting pixel values of each frame of the sequence of video frames based on the brightness map for the respective frame to enhance brightness of low brightness regions of the respective frame; and displaying the enhanced sequence of video frames in real-time.