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ART_test
一种简单的代数重建算法,用于CT图像二维重建,供初学者学习使用。(A simple algebraic reconstruction algorithm, used in CT image reconstruction, for beginners learning to use.)
- 2020-11-23 16:29:34下载
- 积分:1
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wuwei
采用快速简单的投影法和差影法实现条烟的缺陷检测(Fast simple video projection method and differential method to achieve Article smoke Defect Detection)
- 2008-12-23 13:52:54下载
- 积分:1
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Pearson-correlation
在统计学中,皮尔逊积矩相关系数(英语:Pearson product-moment correlation coefficient,又称作 PPMCC或PCCs[1], 文章中常用r或Pearson s r表示)用于度量两个变量X和Y之间的相关(线性相关),其值介于-1与1之间。在自然科学领域中,该系数广泛用于度量两个变量之间的相关程度。它是由卡尔·皮尔逊从弗朗西斯·高尔顿在19世纪80年代提出的一个相似却又稍有不同的想法演变而来的。这个相关系数也称作“皮尔森相关系数r”。(In statistics, Pearson product-moment correlation coefficient (English: Pearson product-moment correlation coefficient, also known PPMCC or PCCs [1], the article used or Pearson s r r representation) is a measure of the two variables X and Y between correlation (linear correlation), a value between-1 and 1. In the natural sciences, the coefficient is widely used to measure the degree of correlation between the two variables. It is made a similar Karl Pearson Francis Galton in the 1880s but made a slightly different idea evolved. The correlation coefficient is also called Pearson s correlation coefficient r .)
- 2015-04-27 16:37:58下载
- 积分:1
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scanning
阈值重心法实现光带中心线提取,可用于结构光扫描的模型建立,处理二值化图像等。(Threshold barycenter method is used to extract the center line of optical band. It can be used to model structured light scanning and process binary images.)
- 2020-11-18 11:49:39下载
- 积分:1
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src
说明: ORB-SLAM 基本延续了 PTAM 的算法框架,但对框架中的大部分组件都做了改进, 归纳起来主要有 4 点:
ORB-SLAM 选用了 ORB 特征, 基于 ORB 描述量的特征匹配和重定位, 都比 PTAM 具有更好的视角不变性。此外, 新增三维点的特征匹配效率更高, 因此能更及时地扩展场景。扩展场景及时与否决定了后续帧是否能稳定跟踪。ORBSLAM 加入了循环回路的检测和闭合机制, 以消除误差累积。系统采用与重定位相同的方法来检测回路(匹配回路两侧关键帧上的公共点), 通过方位图 (Pose Graph) 优化来闭合回路。PTAM 需要用户指定 2 帧来初始化系统, 2 帧间既要有足够的公共点, 又要有足够的平移量. 平移运动为这些公共点提供视差 (Parallax) , 只有足够的视差才能三角化出精确的三维位置。ORB-SLAM 通过检测视差来自动选择初始化的 2 帧。PTAM 扩展场景时也要求新加入的关键帧提供足够的视差, 导致场景往往难以扩展. ORB-SLAM 采用一种更鲁棒的关键帧和三维点的选择机制——先用宽松的判断条件尽可能及时地加入新的关键帧和三维点, 以保证后续帧的鲁棒跟踪; 再用严格的判断条件删除冗余的关键帧和不稳定的三维点,以保证 BA 的效率和精度。(Orb-slam basically continues the algorithm framework of PTAM, but most of the components in the framework have been improved, which mainly includes four points:)
- 2020-06-11 23:43:54下载
- 积分:1
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knn-algorithm
基于knn算法的遥感图像分类 源代码 算法测试(Remote sensing image classification based on knn algorithm Source code Algorithm testing)
- 2020-12-02 19:59:25下载
- 积分:1
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kpcacsdn
kpca的算法实现源码,实现了一个数据降维方面的经典算法kpca(kpca the algorithm source code, to achieve a data dimensionality reduction classical algorithm kpca)
- 2020-09-18 19:07:53下载
- 积分:1
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ksvdsbox11-min
KSVD字典训练程序,用于生成适应于图像内容的稀疏字典。稀疏描述必读程序。(KSVD dictionary training program used to generate a sparse dictionary adapted to image content. Sparse description of the Privacy Policy program.)
- 2012-08-16 16:42:23下载
- 积分:1
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histogrameq
VC做的图像处理方面的一些代码,仅供参考(VC do image processing of some code, only supplies the reference
)
- 2012-03-15 10:09:25下载
- 积分:1
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Jerman增强滤波器 可行
基于hessian矩阵的眼底图像血管增强滤波(Vessel Enhanced Filtering of Eyeground Images Based on Hessian Matrix)
- 2020-12-16 16:09:14下载
- 积分:1