博文

再说 贝叶斯网、马尔科夫随机场

热度 2 2011-8-11 15:20

概述 贝叶斯网(directed acyclic graph), MRF( undirected graph)是两种重要的概率图模型，在日益网络化的世界里，它们能对众多事物、现象合理建模，包括：社交网络（facebook, twitter)、交通网络（transportation,travel,network design)、医疗诊断等等，Russell还用它建立全球的crust vibration network, 用以分析 ...

个人分类: 读书日记|11876 次阅读|2 个评论 热度 2

point process, stochastic geometry 在high-level CV中的应用

热度 1 2011-7-17 10:05

前一篇博文写到了MRF在视觉中的应用，它实际是对问题建立graphical model, 然后用bayesian probabilistics的方法做Inference。在建立图模型前，要首先定义vertex/edge/neighborhood,而后续的estimation和inference是基于建立好的图模型的，所以如果一个问题中，vertex(也可以说object)是变化而不是固定的（此时的图模型变 ...

个人分类: 读书日记|5189 次阅读|1 个评论 热度 1

artificial intelligence toolkits

热度 1 2011-7-2 16:04

Ithas beena long time since the last blog was published. Today I spent much time surfing on web randomly, and discovered some really useful free toolkits for academic research. 1. computer vision algorithm implementations http://www.cvpapers.com/rr.html Each will set a founda ...

个人分类: 读书日记|3426 次阅读|1 个评论 热度 1

cvcam.h cvcam.lib cvcam.dll

热度 4 2010-11-23 09:52

Some sample programs dealing with camera videos may be written using cvcam.lib in OpenCV, however, this library is already obsolete and is removed from OpenCV1.0 1.1 2.0 and 2.1. For the time being, I still can't figure out which library video processing functions have been transferred into, so let ...

个人分类: 读书日记|9315 次阅读|没有评论 热度 4

射影几何及齐次坐标在CV和CG中的应用

2010-3-29 19:09

1． 单应性 homography, 也叫射影变换 projective transformation Homography描述了两个平面间的变换关系（When the scene is a plane, a homography holds between the scene coordinate and the image coordinate AND between images acquired from different perspectives）,射影 ...

个人分类: 读书日记|9843 次阅读|没有评论

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