"A corner can be defined as the point where two non-parallel edges meet, or ought to meet. Corner Detection is an important low-level step in many object detection and recognition tasks. Common approaches are: \n* Template Matching \n* Second-order Derivative Schemes \n* Plessey Corner Detector (also known as the Harris detector) \n* Median filter based corner detection. \n* Hough Transform approach"@en . . . . "Corner detection"@en . "A corner can be defined as the point where two non-parallel edges meet, or ought to meet. Corner Detection is an important low-level step in many object detection and recognition tasks. Common approaches are: \n* Template Matching \n* Second-order Derivative Schemes \n* Plessey Corner Detector (also known as the Harris detector) \n* Median filter based corner detection. \n* Hough Transform approach"@en .