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PuRet: Material Appearance Enhancement Considering Pupil and Retina Behaviors

机译：PuRet：考虑到瞳孔和视网膜行为的物质外观增强

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摘要

In addition to colors and shapes, factors of material appearance such as glossiness, translucency, and roughness are important for reproducing the realistic feeling of images. In general, these perceptual qualities are often degraded when reproduced as digital color images. Therefore, it is useful to enhance and reproduce them. In this article, the authors propose a material appearance enhancement algorithm for digital color images. First, they focus on the change of pupil behaviors, which is the first of the early vision systems to recognize visual information. According to their psychophysiological measurement of pupil size during material observation, they find that careful observation of surface appearance causes the pupil size to contract further. Next, they reflect this property in the retinal response, which is the next system in early vision. Then, they construct a material appearance enhancement algorithm named "PuRet" based on these physiological models of pupil and retina. By applying the PuRet algorithm to digital color test images, they confirm that perceived material appearance, including glossiness, transparency, and roughness, in the images is enhanced by using their PuRet algorithm. Furthermore, they show possibilities to apply their algorithm to a material appearance management system that could produce equivalent appearance qualities among different imaging devices by adjusting one parameter of PuRet. (C) 2017 Society for Imaging Science and Technology.
机译：除了颜色和形状以外，诸如光泽度，半透明性和粗糙度之类的材料外观因素对于再现逼真的图像也很重要。通常，当再现为数字彩色图像时，这些感知质量通常会降低。因此，增强和再现它们是有用的。在本文中，作者提出了一种用于数字彩色图像的材料外观增强算法。首先，他们关注瞳孔行为的变化，这是识别视觉信息的早期视觉系统中的第一个。根据他们在物质观察过程中对瞳孔大小的心理生理测量，他们发现仔细观察表面外观会使瞳孔大小进一步缩小。接下来，它们将这种特性反映在视网膜反应中，这是早期视力中的下一个系统。然后，他们基于瞳孔和视网膜的这些生理模型构造了一种名为“ PuRet”的材料外观增强算法。通过将PuRet算法应用于数字彩色测试图像，他们确认使用PuRet算法可以增强图像中感知到的材料外观，包括光泽度，透明度和粗糙度。此外，他们展示了将其算法应用于材料外观管理系统的可能性，该材料外观管理系统可以通过调整PuRet的一个参数在不同的成像设备之间产生同等的外观质量。 （C）2017年影像科学与技术学会。

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