Generation of low-contrast sinusoidal test patterns on a high-brightness display

被引：7

作者：

Sund, Patrik ^{[1
]}

Bath, Magnus

Ungsten, Linda

Mansson, Lars Gunnar

机构：

[1] Sahlgrens Univ Hosp, Dept Med Phys & Biomed Engn, SE-41345 Gothenburg, Sweden

[2] Univ Gothenburg, Dept Radiat Phys, SE-41345 Gothenburg, Sweden

来源：

JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY | 2006年 / 14卷 / 10-12期

关键词：

vision research; Barten model; monitor calibration; contrast threshold; eye adaptation; sinusoidal test patterns;

D O I：

10.1889/1.2372425

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

By using a technique of addressing individual subpixels, low-contrast sinusoidal test patterns were generated on a high-brightness color LCD. Detection tasks were performed using 2AFC experiments, and the value obtained for the contrast threshold was found to agree well with previously published data. As long as the shape of the pattern was close to sinusoidal, a good correlation was found between pattern contrast and detection rate. The influence of the eye-adaptation luminance level was studied and compared to the f-factor published by Barten. Luminance non-uniformities in the background did not cause any significant change in the detection threshold.

引用

页码：913 / 919

页数：7

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