Creating physically accurate visual stimuli for free: Spectral rendering with RADIANCE

Creating physically accurate visual stimuli for free: Spectral rendering with RADIANCE
复制标题

免费创建物理上准确的视觉刺激:使用 RADIANCE 进行光谱渲染

DOI:
--
复制
发表时间:
2008
影响因子:
5.4
通讯作者:
Marina Bloj
Marina Bloj
中科院分区:
心理学2区
文献类型:
--
作者:
A. Ruppertsberg;Marina Bloj

文献摘要

参考文献

被引文献

相似文献

研究物体、颜色和光感知的视觉心理学家需要一种软件,可以为他们的实验产生复杂但同时又在物理上准确的刺激。模拟光和表面的物理相互作用的计算机图形软件包的数量是有限的,而且大多数都需要购买许可证。辐射(沃德,1994年),然而,是免费提供和流行的视觉感知社区,使其成为一个主要的候选人。我们之前已经表明,当颜色由光谱编码时,而不是由最初设想的RGB三元组(Ruppertsberg & Bloj,2006),RADIANCE的模拟精度得到了极大的提高。在这里,我们提出了一种方法,光谱渲染与辐射生成高光谱图像,可以转换为XYZ图像(CIE 1931系统),然后到机器相关的RGB图像。生成XYZ刺激具有使刺激图像独立于显示设备的附加优势,从而促进了跨不同实验室再现结果的过程。与本文相关的材料可从www.psychonomic.org下载。
Visual psychophysicists, who study object, color, and light perception, have a demand for software that produces complex but, at the same time, physically accurate stimuli for their experiments. The number of computer graphic packages that simulate the physical interaction of light and surfaces is limited, and mostly they require the purchase of a license. RADIANCE (Ward, 1994), however, is freely available and popular in the visual perception community, making it a prime candidate. We have shown previously that RADIANCE’S simulation accuracy is greatly improved when color is coded by spectra, rather than by the originally envisaged RGB triplets (Ruppertsberg & Bloj, 2006). Here, we present a method for spectral rendering with RADIANCE to generate hyperspectral images that can be converted to XYZ images (CIE 1931 system) and then to machine-dependent RGB images. Generating XYZ stimuli has the added advantage of making stimulus images independent of display devices and, thereby, facilitating the process of reproducing results across different labs. Materials associated with this article may be downloaded from www.psychonomic.org.
DOI: 10.1167/4.9.10
发表时间: 2004-01-01
期刊: JOURNAL OF VISION
影响因子: 1.8
作者:
Fleming, RW;Torralba, A;Adelson, EH
通讯作者: Adelson, EH
两种光源下的表面颜色感知:第二种光源降低了颜色恒定性。
DOI: 10.1167/3.5.4
发表时间: 2003
期刊: Journal of vision
影响因子: 1.8
作者:
Yang,JoongNam;Shevell,StevenK
通讯作者: Shevell,StevenK
灰松鼠(Sciurus carolinensis)外侧膝状核的感受野特性和层状组织。
DOI: 10.1152/jn.00474.2003
发表时间: 2003
期刊: Journal of neurophysiology.
影响因子: --
作者:
VanHooser,StephenD;Heimel,JAlexanderF;Nelson,SachaB
通讯作者: Nelson,SachaB