Title :
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
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;
Conference_Titel :
Electronic Technology Directions to the Year 2000, 1995. Proceedings.
Conference_Location :
Adelaide, SA
Print_ISBN :
0-8186-7085-1
DOI :
10.1109/ETD.1995.403508
