Bispectral photometric stereo based on fluorescence
Bispectral photometric stereo based on fluorescence
复制标题
基于荧光的双光谱光度立体
DOI：
10.1109/cvpr.2012.6247685
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Yoichi Sato
中科院分区：
文献类型：
--
作者：
Imari Sato;Takahiro Okabe;Yoichi Sato
我们提出了一种新的技术，称为双光谱光度立体，有效地利用荧光形状重建。荧光是一种常见的现象，发生在许多对象从天然宝石和珊瑚，以荧光染料用于服装。荧光的重要特性之一是其波长移动行为：荧光材料吸收特定波长的光，然后以更长的波长重新发射。由于其发射过程的复杂性，荧光往往被排除在计算机视觉和图像处理的大多数算法之外。在本文中，我们表明，荧光和理想的漫反射之间有很强的相似性，荧光可以提供不同的线索，如何估计一个对象的形状。此外，荧光的波长漂移特性使我们能够通过将光度立体应用于仅发射图像来估计物体的形状，而不会受到镜面反射的影响。这是基于荧光的方法相对于基于反射的先前方法的显著优点。
We propose a novel technique called bispectral photometric stereo that makes effective use of fluorescence for shape reconstruction. Fluorescence is a common phenomenon occurring in many objects from natural gems and corals, to fluorescent dyes used in clothing. One of the important characteristics of fluorescence is its wavelength-shifting behavior: fluorescent materials absorb light at a certain wavelength and then reemit it at longer wavelengths. Due to the complexity of its emission process, fluorescence tends to be excluded from most algorithms in computer vision and image processing. In this paper, we show that there is a strong similarity between fluorescence and ideal diffuse reflection and that fluorescence can provide distinct clues on how to estimate an object's shape. Moreover, fluorescence's wavelength-shifting property enables us to estimate the shape of an object by applying photometric stereo to emission-only images without suffering from specular reflection. This is the significant advantage of the fluorescence-based method over previous methods based on reflection.