A mixed-signal array processor with its applications

Author

Martin, David A. ; Lee, Hae-Seung ; Masaki, Lchiro

Author_Institution

Texas Instrum. Inc., Edison, NJ, USA

fYear

1997

fDate

9-12 Nov 1997

Firstpage

894

Lastpage

899

Abstract

A mixed-signal array processor used as an image processor for an intelligent cruise control system is presented. The processor´s ALU is a programmable analog arithmetic circuit which can perform addition, subtraction, multiplication, and division with 1.3% accuracy. This circuit enables the processor to operate with the low power and low area of a dedicated analog circuit while retaining the programmability of a digital processor. The array processor performed an edge detection algorithm and a sub-pixel resolution algorithm. A 1 cm square array of the mixed-signal processor cells in 0.8 μm CMOS with a 5 V power supply would dissipate 1 W at 420 MIPS

Keywords

CMOS integrated circuits; analogue processing circuits; automotive electronics; computer vision; edge detection; mixed analogue-digital integrated circuits; road vehicles; stereo image processing; 0.8 micron; 1 W; 420 MIPS; 5 V; CMOS; analog processing circuit; early vision; edge detection; image processor; intelligent cruise control system; mixed-signal array processor; programmable analog arithmetic circuit; road vehicles; stereo vision; Arithmetic; Circuits; Control systems; Image edge detection; Intelligent control; Intelligent systems; Intelligent vehicles; Machine vision; Signal processing algorithms; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Transportation System, 1997. ITSC '97., IEEE Conference on

Conference_Location

Boston, MA

Print_ISBN

0-7803-4269-0

Type

conf

DOI

10.1109/ITSC.1997.660592

Filename

660592