Automatic relighting of overlapping textures of a 3D model
Automatic relighting of overlapping textures of a 3D model
复制标题
自动重新照亮 3D 模型的重叠纹理
DOI：
10.1109/cvpr.2003.1211467
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
S. Roy
中科院分区：
文献类型：
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作者：
Etienne Beauchesne;S. Roy
本文提出了一种新的方法来纠正一个单一的3D模型，其中每个纹理可能是在不同的照明条件下获得的相机的颜色响应重叠的纹理。当使用多个3D扫描仪对单个对象进行数字化时，这种情况经常出现。我们的目标是删除任何可见的接缝，并提高纹理之间的颜色一致性，以便之后合并它们。为了实现这一点，我们提出了一个有效的算法来计算两个纹理的“比率照明”，从中获得一个共同的照明，并用它来“重新照明”每个纹理。我们说明了我们的方法，通过校正纹理的人脸与几个结构光3D扫描仪获得。实验结果是真实的，并证明了这种方法可以减少校准颜色或显式解决照明的需要。
The paper presents a new method to correct overlapping textures of a single 3D model where each texture was obtained under possibly different lighting conditions and color response of the camera. This situation arises frequently when a single object is digitized using multiple 3D scanners. Our goal is to remove any visible seam and improve color consistency between the textures in order to merge them afterwards. To achieve this, we propose an efficient algorithm to compute the "ratio lighting" of two textures, derive a common lighting from it, and use it to "relight" each texture. We illustrate our method by correcting textures of human faces acquired with several structured-light 3D scanners. Experimental results are realistic and demonstrate how this method can reduce the need to calibrate colors or explicitly solve for the illumination.