Title :
Normal Optical Flow chip
Author :
Mehta, Swati ; Etienne-Cummings, Ralph
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
This paper introduces a 2-D dense Normal Optical Flow estimation algorithm being implemented in VLSI which combines imaging and processing on the same chip efficiently. The algorithm computes partial derivatives with respect to time and space and uses their ratio to compute normal flow velocity. The chip implemented in 0.5μm CMOS process has a 92×52 array of APS pixels. The chip occupies an area of 4.5 mm2.
Keywords :
CMOS image sensors; VLSI; image sequences; 0.5 micron; 2D dense normal optical flow estimation algorithm; 52 pixel; 92 pixel; APS pixel array; CMOS chip; VLSI; image processing; Brightness; CMOS process; Equations; High-resolution imaging; Image motion analysis; Optical computing; Optical filters; Optical imaging; Pixel; Very large scale integration;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1206309
