A microcomputer-based video-pattern generator for binocular vision test

Author

Obaidat, M.S. ; Abu-Saymeh, D.S.

Author_Institution

Dept. of Electr. Eng., City Coll. of New York, NY, USA

Volume

43

Issue

1

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

89

Lastpage

93

Abstract

This paper presents a hardware and software system for the generation of video patterns that can be used for various vision tests, particularly depth perception. Among the capabilities of the system is generation of static and dynamic random dot stereograms that can be used to test depth perception. The system generates the patterns in real time which provides the capability of moving the objects in the stereogram. This feature is very useful in testing depth perception among infants and noncommunicative people by correlating the movement of the eye with the movement of the object. The other patterns are the checkerboards, vertical and horizontal bars with a capability to sweep the size of the checkers and bars. These latter patterns are useful for testing vision acuity. The system is based on the TMS34010 graphics processor and is connected to a host computer through an RS-232C serial communication port. It has an RGB video output for connection to an RGB color video monitor to display the various video patterns. The application and system software is written in assembly language which is efficient for real-time applications

Keywords

automatic test equipment; biomedical equipment; biomedical measurement; computer graphic equipment; image processing equipment; medical image processing; microcomputer applications; patient diagnosis; real-time systems; signal generators; stereo image processing; vision defects; visual perception; RGB video output; RS-232C serial communication port; TMS34010 graphics processor; assembly language; binocular vision test; checkerboards; depth perception; dynamic random dot stereograms; hardware; horizontal bars; microcomputer-based video-pattern generator; real-time applications; software; static random dot stereograms; stereogram; vertical bars; video patterns; vision acuity; vision tests; Application software; Bars; Computer graphics; Hardware; Pediatrics; Real time systems; Software systems; Software testing; System testing; Test pattern generators;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.286360

Filename

286360