Title :
Normal Optical Flow measurement on a CMOS APS imager
Author :
Mehta, Swati ; Etienne-Cummings, Ralph
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
Results from a 2-D dense Normal Optical Flow measurement chip implemented in 0.5 μm CMOS process are presented. The chip has a 92×52 array of APS pixels, occupies an area of 4.5 mm2 and consumes 2.6 mW power. To illustrate the operation of the chip, we present the results of individual blocks and then the whole structure. We also demonstrate the feasibility of scaling the chip to higher resolutions without affecting the processing.
Keywords :
CMOS image sensors; image resolution; image sequences; power consumption; scaling circuits; smart pixels; 0.5 micron; 2-D dense normal optical flow measurement chip; 2.6 mW; CMOS active pixel sensor imager; CMOS process; chip operation; chip resolution; power consumption; scaling circuit; Analog memory; CMOS process; Circuits; Fluid flow measurement; High-resolution imaging; Image motion analysis; Optical arrays; Optical imaging; Pixel; Semiconductor device measurement;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1329137
