This paper describes the main principles of a vision sensor dedicated to the detecting and tracking faces in video sequences. For this purpose, a current mode CMOS active sensor has been designed using an array of pixels that are amplified by using current mirrors of column amplifier. This circuit is simulated using Mentor GraphicsTMsoftware with parameters of a 0.6 m CMOS process. The circuit design is added with a sequential control unit which purpose is to realise capture of subwindows at any location and any size in the whole image.
Citation:
Dominique Ginhac, Eri Prasetyo, Michel Paindavoine, Barth?l?my Heyrman, "Principles of a CMOS Sensor Dedicated to Face Tracking and Recognition," camp, pp.33-38, Seventh International Workshop on Computer Architecture for Machine Perception (CAMP'05), 2005