Multiplicative noise cancellation (MNC) in analog VLSI vision sensors

Author

Moini, Alireza ; Blanksby, A. ; Bouzerdoum, A. ; Eshraghian, K. ; Beare, R.

Author_Institution

Dept. of Electr. & Electron. Eng., Adelaide Univ., SA, Australia

fYear

1995

fDate

23-25 May 1995

Firstpage

253

Lastpage

257

Abstract

The operation of analog VLSI sensors can be significantly affected by multiplicative noise caused by specular reflections of light from artificial sources. The paper describes the implementation of a proposed architecture and circuits for multiplicative noise cancellation (MNC). The circuit has been used in a motion detection chip, and simulation results indicate about ten times improvement in the signal to noise ratio

Keywords

CMOS analogue integrated circuits; VLSI; analogue processing circuits; image processing equipment; image sensors; integrated circuit noise; interference suppression; light reflection; motion estimation; CMOS technology; MNC; analog VLSI vision sensors; artificial sources; motion detection chip; multiplicative noise cancellation; signal to noise ratio; simulation results; specular light reflections; Additive noise; Circuit noise; Frequency; Image sensors; Intelligent sensors; Light sources; Noise cancellation; Noise reduction; Reflectivity; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Technology Directions to the Year 2000, 1995. Proceedings.

Conference_Location

Adelaide, SA

Print_ISBN

0-8186-7085-1

Type

conf

DOI

10.1109/ETD.1995.403508

Filename

403508