Derivation of shadow vanishing points, shadow vanishing lines, camera internal parameters, and plane normal vectors—single-view reconstruction

The calculation algorithm of shadow vanishing point is as follows: 

 Single-view geometry Vanish Point (vanishing point/vanishing point) calculation method - Robert_T_Collins (Robert Collins) algorithm https://blog.csdn.net/beyond951/article/details/122309070?spm=1001.2014.3001.5501

 Refactoring reference:

Single View Reconstruction of Teacher Lu Peng's 3D Reconstruction Course https://blog.csdn.net/beyond951/article/details/122265206?spm=1001.2014.3001.5501