The Visible Differences Predictor: Applications to Global Illumination Problems
The Visible Differences Predictor: Applications to Global Illumination Problems
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可见差异预测器：在全局照明问题中的应用
DOI：
10.1007/978-3-7091-6453-2_21
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
K. Myszkowski
中科院分区：
文献类型：
--
作者：
K. Myszkowski
在全局照明计算的这项研究中，我们研究了Daly [5]开发的基于感知的视觉差异预测器（VDP）的应用。首先，我们通过纹理和亮度对比度实验验证了该预测器在阴影掩蔽中的性能。我们还实验对比敏感度函数（CSF）来自各种心理物理实验的结果，各种空间频率和方向通道分解方案，和对比度定义，以检查预测的完整性和敏感性不同的模型的视觉机制。我们展示了VDP的应用程序来监控渐进辐射度和蒙特卡罗解决方案的感知质量，并决定其停止条件。此外，基于预测器提供的局部误差度量，我们展示了在辐射度计算中驱动自适应网格细分的一些初步尝试。
In this study of global illumination computations, we investigate the applications of the perceptually-based Visual Difference Predictor (VDP) developed by Daly [5]. First, we validate the performance of this predictor in shadow masking by texture and luminance contrast experiments. We also experiment with Contrast Sensitivity Functions (CSFs) derived from the results of various psychophysical experiments, various spatial frequency and orientation channel decomposition schemes, and contrast definitions, in order to check predictor integrity and sensitivity to differing models of visual mechanisms. We show applications of the VDP to monitor the perceived quality of the progressive radiosity and Monte Carlo solutions, and decide upon their stopping conditions. Also, based on the local error metric provided by the predictor we show some initial attempts to drive adaptive mesh subdivision in radiosity computations.
DOI：
10.1364/josaa.7.002032
发表时间：
1990-10-01
影响因子：
1.9
作者：
PELI, E
通讯作者：
PELI, E