Effect of field view size and lighting on unique-hue selection using Natural Color System object colors

被引：11

作者：

Shamey, Renzo ^{[1
]}

Zubair, Muhammad ^{[1
]}

Cheema, Hammad ^{[1
]}

机构：

[1] N Carolina State Univ, Color Sci & Imaging Lab, TECS Dept, Raleigh, NC 27695 USA

来源：

VISION RESEARCH | 2015年 / 113卷

关键词：

Unique hues; Field view size; Natural Color System; OPPONENT-PROCESS ADDITIVITY; CHROMATIC MECHANISMS; NEURAL BASIS; BINARY HUES; VISION; LOCI; SENSITIVITY; APPEARANCE; PIGMENTS;

D O I：

10.1016/j.visres.2015.03.023

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The aim of this study was twofold, first to determine the effect of field view size and second of illumination conditions on the selection of unique hue samples (UHs: R, Y, G and B) from two rotatable trays, each containing forty highly chromatic Natural Color System (NCS) samples, on one tray corresponding to 1.4 degrees and on the other to 5.7 degrees field of view size. UH selections were made by 25 color-normal observers who repeated assessments three times with a gap of at least 24 h between trials. Observers separately assessed UHs under four illumination conditions simulating illuminants D65, A, F2 and F11. An apparent hue shift (statistically significant for UR) was noted for UH selections at 5.7 degrees field of view compared to those at 1.4 degrees. Observers' overall variability was found to be higher for UH stimuli selections at the larger field of view. Intra-observer variability was found to be approximately 18.7% of inter-observer variability in selection of samples for both sample sizes. The highest intra-observer variability was under simulated illuminant D65, followed by A, F11, and F2. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：22 / 32

页数：11