Patent ID: 6058223
Filing Date: 2000-05-02
Classification: G06K

Abstract:
A single integrated circuit for providing a centered video image comprising:a photodetector array comprising a plurality of silicon retinas arranged in rows and columns;means for scanning out a photocurrent at each silicon retina of the photodetector array to provide a video image;means for summing the photocurrent at the silicon retinas along each row and column in the photodetector array;means for computing row and column centroids of the video image using the output of the summing means;a sequencing means for using the row and column centroids from the computing means and the video image from the scanning means to scan out the centered video image; andan absolute value circuit for receiving the output of the summing means and restoring low frequency information removed by each silicon retina to the output prior to the output being inputted to the computing means.