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Point Cloud Mosaic Using PCL
PCL是一个类似于OpenCV的开源库,提供了很多三维点云的处理功能,其中就包括点云拼接。在三维扫描项目中,需要利用点云拼接方法将多次扫描得到的点云数据拼合成一个整体。在本例中,用一幅包含人脸的深度图像去匹配之前获得的人脸模板,这将使我们能够确定人脸在场景中的位置和方向。(PCL is an open source library similar to OpenCV, which provides a lot of processing functions for three-dimensional point clouds, including point cloud mosaic. In the three-dimensional scanning project, it is necessary to use point cloud mosaic method to combine the point cloud data obtained from multiple scans into a whole. In this example, a depth image containing face is used to match the face template obtained before, which will enable us to determine the position and direction of the face in the scene.)
- 2019-02-19 09:35:56下载
- 积分:1
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kpca
KPCA是一种PCA的改进方法,很值得一看,很实用!(KPCA is an improved method of PCA, it is worth a visit, it is useful!)
- 2020-09-18 15:27:53下载
- 积分:1
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generateDictionaries
Matching Pursuit 算法,该算法能够把Gabor原子集合,用线性组合表示,能够降低运算量。(Matching Pursuit algorithm, which can Gabor atomic collection, using a linear combination that can reduce computational complexity.)
- 2008-12-22 09:55:16下载
- 积分:1
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bianyuantuxiangjiance
这是一个人脸检测程序,可以有效检测出图像边缘。(This is a face detection procedures can effectively detect Edge.)
- 2007-05-30 17:39:15下载
- 积分:1
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VolumeRayCasting_101
说明: 利用raycasting实现三维重建,直接体绘制,老外写的(raycasting volume rendering C++ C# vs2008)
- 2019-04-20 08:58:59下载
- 积分:1
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图像清晰度评价指标Matlab
图像清晰度评价函数说明
1、熵: 表示图像所包含的平均信息量的多少,嫡值越大则所含信息量越多。
文件名:entropy.m 结果:EN
2、交叉嫡:反映两幅图像的差异,交叉嫡越小,则融合图像和原图像的差别越小。
文件名:cross_entropy.m 结果:平均交叉嫡MCE,均方根交叉嫡RCE
3、峰值信噪比: PSNR越高,说明融合效果与质量越好。
文件名:psnr.m 结果:PSNR
4、Qabf: 评价边缘或梯度质量,越大边缘越明显
文件名:Qabf.m 结果:Qabf(QAB/F)
5、平均梯度(Average Gradient):也称为清晰度,反映了图像中的微小细节反差与纹理变化特征,同时也反映了图像的清晰度,越大越好。
文件名:avg_gradient 调用:outval = avg_gradient(img)
6、结构相似性指数: SSIM指原图像和融合图像的相似程度,值越大越相似
文件名:ssim.m 结果:SSIM
7、互信息:MI(mutual information)
8、NMI: Normalized mutual information(Image sharpness evaluation function)
- 2018-09-30 09:09:39下载
- 积分:1
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showHism
能同时显示24位图三色R、G、B的直方图(can also showed 24 Figure 3 color R, G, B Histogram)
- 2004-11-05 18:02:53下载
- 积分:1
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facereganization
人脸识别的实例,其中含有项目题目,解决方案以及实现程序和工具箱(Examples of face recognition, which contains the project topic, the solution as well as the implementation procedures and toolbox)
- 2009-02-23 20:15:23下载
- 积分:1
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可以在ABaqus中模拟出三维多晶体Desktop
可以在ABaqus中模拟出三维多晶体,加入取向模拟晶粒的受力情况。(The three-dimensional polycrystal can be simulated in ABaqus, and the force of the grain can be simulated with the orientation.)
- 2020-07-18 10:48:50下载
- 积分:1
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fasta
DNA比对中FASTA算法的简单实现,通过建立查找表、位移表和位移向量表来得出两条序列的最大匹配位移。(DNA matching the FASTA algorithm is simple to achieve, through the establishment of a lookup table, displacement and the displacement vector table to derive maximum matching two sequences displacement.)
- 2021-01-11 11:18:49下载
- 积分:1