Photometric stereo aims at estimating surface normals of a static object from a set of images acquired under various illumination conditions from a fixed camera. ———R. J. Woodham 原文:GPS-Net: Graph-based Photometric Stereo Network代码:github.com/ZhuokunYao/G来源:NeurlPS 2020 写在前面 最...
3 Graph-based Photometric Stereo Network 基于图形的光度立体声网络,称为GPS-Net。如图1所示。GPS-Net由两个模块组成,即将每个像素的非结构化图像间输入连接到图形结构并生成固定大小的特征图,以及全像素操作的UFE层,以从图像内空间信息进一步回归正线映射。 3.1 UFE-Layer for Per-pixel Operation 为了处理每个...
Learning-based photometric stereo methods predict the surface normal either in a per-pixel or an all-pixel manner. Per-pixel methods explore the inter-image intensity variation of each pixel but ignore features from the intra-image spatial domain. All-pixel methods explore the intra-image ...
In this work yearly GNSS/GPS datasets were used for obtaining a table of photometric calibration constants and the methodology was applied and validated in three European ESR-SKYNET network sites, characterized by different atmospheric and climatic conditions: Rome, Valencia and Aosta. Results were ...