Title :
Current-mode frame subtraction circuit for onsensor object tracking
Author :
Otaka, Toshinori ; Hiraga, Takumi ; Hamamoto, Takayuki
Author_Institution :
Tokyo Univ. of Sci., Tokyo, Japan
Abstract :
A simple frame subtraction architecture based on switched-current circuits for real-time object tracking is presented in this paper. Current copier cells hold previous frame data as components of frame subtraction units (FSUs). The proposed scheme is simple and optimized for 32 × 32 pixels. The circuit was designed and simulated as a proof of the concept with a 0.18-¿m complementary metal oxide semiconductor (CMOS) N-well process with an area of 125 × 85 ¿m2 and it operates with 3.3 V.
Keywords :
CMOS image sensors; image motion analysis; object detection; switched current circuits; CMOS; complementary metal oxide semiconductor N-well process; copier cells; current-mode frame subtraction circuit; on-sensor object tracking; real-time object tracking; size 0.18 mum; switched-current circuits; voltage 3.3 V; Application software; Circuits; Computer interfaces; Digital cameras; Graphical user interfaces; Image processing; Motion detection; Pixel; Signal processing algorithms; Target tracking;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2009. ISPACS 2009. International Symposium on
Conference_Location :
Kanazawa
Print_ISBN :
978-1-4244-5015-2
Electronic_ISBN :
978-1-4244-5016-9
DOI :
10.1109/ISPACS.2009.5383792
