• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Asia Pacific Conference on Optics Manufacture; 20070111-13; Hongkong(CN) >Effects of Light Wavelengths on the Performance of Color Absolute Judgments
【24h】

Effects of Light Wavelengths on the Performance of Color Absolute Judgments

机译：光波长对颜色绝对判断性能的影响

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Optically, humans can discriminate between colors as close as 2nm in wavelength in relative judgment task. However, there is little research to discuss color differences for absolute color judgments in which the comparison is held in memory. Therefore, the intent of this study was to explore effects of wavelengths on the Just Noticeable Difference (JND) of absolute judgments in our perceptual world. A color identification task was utilized to investigate the JND of wavelengths. In the experiment, the Standard Stimulus Color (SSC) and the Comparison Stimulus Color (CSC) were successively presented. The SSC which was presented first must be stored in working memory and recalled when the second color, CSC, is presented. Subjects had to decide if the CSC matched the SSC. Each CSC was presented four times for each subject in the experiment. The CSC wavelength that was recognized as different from the SSC twice was designed as a JND wavelength. Five SSC wavelengths with 100% saturation and 100% lightness were chosen from the hue circle of HLS color space which included 360 hues. Because the hue circle is a circle, the CSC may be on both sides of a SSC in the hue circle. The CSC hue which may be located on the clockwise direction or counter clockwise direction of the SSC was called clockwise direction color (CD) or counter clockwise direction color (CCD), respectively. The wavelengths expressed with HLS color space were translated into coordination of CIE1931 (x, y)-chromaticity diagram. The results indicated that threshold sensitivities varied for different wavelengths on absolute judgment tasks. The lights with longest or shortest wavelength had greater JNDs than ones with middle wavelengths for absolute judgment tasks. The comparison of the results of the experiment on absolute color judgment tasks and MacAdam's (1942) findings for relative color judgment tasks were also discussed.
机译：从光学上讲，人类可以在相对判断任务中区分波长接近2nm的颜色。但是，很少有研究讨论用于比较的绝对颜色判断中将色差保存在内存中的研究。因此，本研究的目的是探索波长对我们感知世界中绝对判断的正好可察觉差异（JND）的影响。颜色识别任务用于研究波长的JND。在实验中，依次介绍了标准刺激色（SSC）和比较刺激色（CSC）。首先显示的SSC必须存储在工作存储器中，并在显示第二种颜色CSC时调出。受试者必须决定CSC是否与SSC相匹配。对于实验中的每个主题，每个CSC都会出现四次。将两次被认为与SSC不同的CSC波长设计为JND波长。从HLS色彩空间的色相圈中选择了五个具有100％饱和度和100％亮度的SSC波长，其中包括360个色相。因为色相圆是一个圆，所以CSC可以在色相圆中SSC的两侧。可能位于SSC的顺时针方向或逆时针方向上的CSC色调分别称为顺时针方向颜色（CD）或逆时针方向颜色（CCD）。用HLS色空间表示的波长转换为CIE1931（x，y）-色度图的协调。结果表明，在绝对判断任务上，阈值灵敏度对于不同的波长是变化的。对于绝对判断任务，具有最长或最短波长的光比具有中波长的光具有更大的JND。还讨论了绝对颜色判断任务的实验结果与MacAdam（1942）针对相对颜色判断任务的发现的比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号