Surface normal estimation of black specular objects from multiview polarization images
Surface normal estimation of black specular objects from multiview polarization images
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DOI：
10.1117/1.oe.56.4.041303
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发表时间：
2017-04-01
影响因子：
1.3
通讯作者：
Asada, Naoki
中科院分区：
文献类型：
--
作者：
Miyazaki, Daisuke;Shigetomi, Takuya;Asada, Naoki
偏振是一种人眼无法观察到的现象，但它提供了丰富的场景信息。该方法通过对反射光的偏振分析来估计黑色镜面物体的表面法线。从单一视点观测的偏振图像无法确定唯一的表面法线；因此，我们从多个角度观察物体。为了分析从多个视点观察时反射光在对应点的偏振状态，采用空间雕刻技术预先确定抽象形状。与传统的光度立体或多视点立体无法估计黑色镜面物体形状不同，该方法通过偏振分析和空间雕刻来估计黑色镜面物体的表面法线和三维坐标。(C)作者。由SPIE在知识共享署名3.0未移植许可下发布。分发或复制本作品的全部或部分需要完整的原始出版物的归属，包括其DOI。
Polarization is a phenomenon that cannot be observed by the human eye, but it provides rich information regarding scenes. The proposed method estimates the surface normal of black specular objects through polarization analysis of reflected light. A unique surface normal cannot be determined from a polarization image observed from a single viewpoint; thus, we observe the object from multiple viewpoints. To analyze the polarization state of the reflected light at the corresponding points when observed from multiple viewpoints, the abstract shape is predetermined using a space carving technique. Unlike a conventional photometric stereo or multiview stereo, which cannot estimate the shape of a black specular object, the proposed method estimates the surface normal and three-dimensional coordinates of black specular objects via polarization analysis and space carving. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.