一本讲解投影几何的电子书。牛津大学出版。对搞游戏开发的朋友来说，本书提供了许多理论基础。

射影几何经典著作，是机器视觉的基础知识

此函数使用 DLT、RANSAC 和 Lev-Mar 优化估计两个图像之间的 2D-2D 投影单应性。 函数调用格式如下： [h wim] = homography(im1, im2); 在哪里 im1 -> 第一张图片im2 -> 第二张图片h -> 返回的单应矩阵wim -> im1 wrt im2 的变形版本

这是关于投影几何的电子书，高清，最新版本，经典著作，英文版

Shape-Preserving Half-Projective Warps for Image Stitching.pdf

投影矩阵的教程 Introduction Projective texture mapping is a method of texture mapping described by Segal [3] that allows the texture image to be projected onto the scene as if by a slide projector. Figure 1 shows some example screen shots from the projspot demo, available in the NVIDIA OpenGL SDK. Projective texture mapping is useful in a variety of lighting techniques, including shadow mapping [4]. This document provides some background and describes the steps involved in projective texture mapping in OpenGL. Projective texture mapping refers both to the way texture coordinates are assigned to vertices, and the way they are computed during rasterization of primitives. We usually think of texture mapping as “the application of a texture image to a primitive,” and while it certainly is that – there is more math going on than most folks think. If you have ever written your own rasterizer with support for mipmap filtered, perspective-correct, projective texture mapping, you no doubt became aware of the many subtle issues involved. We will begin by discussing the way that texture coordinates are computed during rasterization, and then we will discuss methods for assigning the texture coordinates to the vertices. We do not discuss filtering here, but there is a paper on Anisotropic Filtering at the NVIDIA developer web site that provides a good introduction to that topic. Figure 1.

射影几何是研究图形的射影性质，即它们经过射影变换后，依然保持不变的图形性质的几何学分支学科。一度也叫做投影几何学，在经典几何学中，射影几何处于一种特殊的地位，通过它可以把其他一些几何学联系起来。