Corner Detection

Abstract

Corners are prominent structural elements in an image and are therefore useful in a wide variety of applications, including following objects across related images (tracking), determining the correspondence between stereo images, serving as reference points for precise geometrical measurements, and calibrating camera systems for machine vision applications. Thus corner points are not only important in human vision but they are also “robust” in the sense that they do not arise accidentally in 3D scenes and, furthermore, can be located quite reliably under a wide range of viewing angles and lighting conditions.