First Advisor

Nancy Perrin

Date of Publication

1988

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Psychology

Department

Psychology

Language

English

Subjects

Electroluminescent display systems, Visual perception

DOI

10.15760/etd.5831

Physical Description

1 online resource (41 p.)

Abstract

A human performance experiment was conducted to investigate pixel parameter requirements for three types of flat-panel display images: an alphanumeric character, an oscilloscope waveform, and a real-world image. Subjects performed similarity judgments between an extremely high-quality image and an image composed of different levels of anti-aliasing and pixel width-plus-pixel separation (pitch). It was found that the effect of pitch had greater influence on perceived image quality for the alphanumeric character and oscilloscope waveform than for the real-world image. The results of this research provide empirical evidence showirg that the pixel pitch requirements for flat-panel systems that are used to display binary, high-contrast images (such as text and waveforms) will be more stringent than for low-contrast pictorial images. The three levels of grey-scale anti-aliasing investigated were found to improve image quality for only the binary, high-contrast images.

Rights

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Comments

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Persistent Identifier

http://archives.pdx.edu/ds/psu/22164

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