An occurrence of a predefined object in an image is recognized by receiving image data, convolving the image data with a set of prdefined functions to analyze the image data into occurences of predefined elementary features, and examining the occurrences for an occurrence of a predefined combination of the elementary features that is characteristic of the predefined object. Preferably the image data are convolved directly with a first predefined function to determine blob responses, and a second predefined function to determine ganglia responses indicating edges of objects. Then the ganglia responses are convolved with a third predefined function to determine simple responses indicating lines in the image, and the simple responses are combined with the ganglia responses to determine complex responses indicating terminated line segments in the image.
REAL-TIME RECOGNITION OF POINTING INFORMATION FROM VIDEO