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原创 第二章 Projective Geometry and Transformations of 2D
2.1 Planar geometryEntitiespointlineconicAlgebraicvectorvectorsymmetric matrix2.2 The 2D projective plane2.2.1 Points and linesHomogeneous representation of linesA common line is represented by equation ax+by+c=0ax + by + c = 0ax+by+c
2022-02-21 07:48:50
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原创 第一章Introduction
Introduction1.1 Introduction - the ubiquitous projective geometry1.2 Camera projectionsThe world is modeled as a 3D projective space in order to apply projective geometry to the imaging process, which is R3\mathbb{R}^3R3 along with points at inifinity.
2022-02-16 14:05:56
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原创 概率图模型
条件概率和贝叶斯定理条件概率,往往用来解决逆问题,也就是一直结果反推原因的一个过程。经典的贝叶斯公式:P(B∣A)=P(A∣B)⋅P(B)P(A)P(B|A) = \frac{P(A|B) \cdot P(B)}{P(A)}P(B∣A)=P(A)P(A∣B)⋅P(B)这个公式常常被利用去推导我们无法直接观测的问题,公式中AAA是结果,BBB是原因。上面的式子,我们要做的任务就是:已知P(A∣B)P(A|B)P(A∣B)和P(B)P(B)P(B),(P(A)=∑n=P(A∣Bi)×P(Bi))
2021-12-13 16:22:13
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原创 COLMAP使用
COLMAP 使用记录Camera coordinatecolmap tutorialThe local camera coordinate system of an image is defined in a way that X axis points to the right, the Y axis points to the right, the Y axis to the bottom, and the Z axis to the front as seen from the image (
2021-12-07 08:22:37
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原创 C++内存管理new、delete使用注意
C++内存管理使用new申请内存后,一定要有delete释放相应内存。int *p = new int [100];delete [] p;这个是大家基本都会的,补充两点平时不注意的。如果想要初始化申请的内存,需要这样写:int *p = new int [100]();释放内存后记得把指针赋值成nullptr,这个是为了在释放前判断指针是否为空,放置重复释放delete [] p;p = nullptr;...
2020-10-28 17:06:47
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