基于直方图着色法的3D重建

3D reconstruction based on coloring using histogram

着色是基于图像的三维场景重建的重要步骤.它通过一致性检测来实现,即检测一个体素映射到这个体素的所有视角中的相应区域的颜色是否一致.一致性检测方法主要有标准差法、自适应阈值法、直方图法等.对直方图一致性检测方法进行了分析并提出相应的算法.它的一个显著特点是不需要调整参数,算法相对容易实现.实验结果表明,该算法是有效可行的.

Coloring is an important step of 3D reconstruction based on images. It needs photo consistency checking, i. e. if a voxel is projecting to all regions of consistent color in all views of the voxel. The major methods of photo consistency checking use standard deviation, adaptive threshold, histogram, etc. The histogram based method of photo consistency checking is analyzed and a consistency checking algorithm is proposed. One of the important characteristics of the method is that its parameters does not need to be regulated, thus the algorithm can be easily implemented. The experimental results show that the algorithm is practical and effective.