Patent ID: 6563101
Filing Date: 2003-05-13
Classification: G01S,H04N

Abstract:
An image tracking device, comprising:a plurality of light-sensitive elements configured to define an array, the array having a row and a plurality of columns intersecting the row, the row and the columns arranged in non-rectilinear geometry, each intersection of the row with one of the columns defining a cell frame having a frame area within which one of the light-sensitive elements is located, each light-sensitive element having an active area, a fill-factor for one of the cell frames being defined as the ratio of the active area of the light-sensitive element located in that cell frame to the frame area of that cell frame, each light-sensitive element is operative to generate an electrical signal responsive to a portion of an image of an object incident on the active area of that light-sensitive element, and wherein a shape of the cell frame, a shape of the active area, and a position of the active area within the cell frame vary throughout the array and are selected to compensate for optical distortions in an image incident on the array.