Multi-pinhole wide-angle high-resolution light position detector

Author

Ma, C.C.H. ; Tan, C.K. ; Lawrence, P.D.

Author_Institution

Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada

Volume

45

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

195

Lastpage

200

Abstract

A point light source angular position-detecting system with wide operating range and high resolution is developed. The sensing part consists of a simple mask with multiple pinholes to cast multiple images of a point light source onto a single CCD area image sensor. The 2D angular position of the light source is computed from results of curve-fitting through the image positions. The computational burden is low, yet an unusually wide operating angle at high resolution throughout is achieved with a single image sensor

Keywords

CCD image sensors; angular measurement; computerised instrumentation; curve fitting; image processing; position measurement; 2D angular position; CCD area image sensor; angular position-detecting system; curve-fitting; high resolution; light source; mask; multi-pinhole wide-angle high-resolution light position detector; multiple images; multiple pinholes; point light source; Actuators; Charge coupled devices; Image sensors; Lenses; Light sources; Mechanical sensors; Radar tracking; Robot kinematics; Robot sensing systems; Target tracking;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.481334

Filename

481334