公开(公告)号：US07053929B2

公开(公告)日：2006-05-30

申请号：US10289501

申请日：2002-11-05

申请人： Orly Yadid-Pecht ,  Brad Minch ,  Bedabrara Pain ,  Eric Fossum

发明人： Orly Yadid-Pecht ,  Brad Minch ,  Bedabrara Pain ,  Eric Fossum

IPC分类号： H04N5/225

CPC分类号： H04N5/232 ,  H04N5/2351 ,  H04N5/374 ,  H04N5/378

摘要： An imaging system for identifying the location of the center of mass (“COM”) in an image. In one aspect, an imaging system includes a plurality of photosensitive elements arranged in a matrix. A center of mass circuit coupled to the photosensitive elements includes a resistive network and a normalization circuit including at least one bipolar transistor. The center of mass circuit identifies a center of mass location in the matrix and includes: a row circuit, where the row circuit identifies a center of mass row value in each row of the matrix and identifies a row intensity for each row; a horizontal circuit, where the horizontal circuit identifies a center of mass horizontal value; and a vertical circuit, where the vertical circuit identifies a center of mass vertical value. The horizontal and vertical center of mass values indicate the coordinates of the center of mass location for the image.