Current-mode frame subtraction circuit for onsensor object tracking

Author

Otaka, Toshinori ; Hiraga, Takumi ; Hamamoto, Takayuki

Author_Institution

Tokyo Univ. of Sci., Tokyo, Japan

fYear

2009

fDate

7-9 Jan. 2009

Firstpage

505

Lastpage

508

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 Ã— 32 pixels. The circuit was designed and simulated as a proof of the concept with a 0.18-Â¿m complementary metal oxide semiconductor (CMOS) N-well process with an area of 125 Ã— 85 Â¿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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISPACS.2009.5383792

Filename

5383792