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HESSIAN
黑塞矩阵(Hessian Matrix),又译作海森矩阵、海瑟矩阵、海塞矩阵等,是一个多元函数的二阶偏导数构成的方阵,描述了函数的局部曲率。黑塞矩阵最早于19世纪由德国数学家Ludwig Otto Hesse提出,并以其名字命名。黑塞矩阵常用于牛顿法解决优化问题,利用黑塞矩阵可判定多元函数的极值问题。在工程实际问题的优化设计中,所列的目标函数往往很复杂,为了使问题简化,常常将目标函数在某点邻域展开成泰勒多项式来逼近原函数,此时函数在某点泰勒展开式的矩阵形式中会涉及到黑塞矩阵。(Hessian Matrix, is a square matrix of the second order partial derivative of the multivariate function, which describes the local curvature of the function. The Hesse matrix was first proposed by the German mathematician Ludwig Otto Hesse in the 19th century and named after it. Hesse matrix is often used in Newton method to solve the optimization problem, using the black plug matrix to determine the extreme function of the extreme value problem.)
- 2017-09-12 13:58:39下载
- 积分:1
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unsharp_masking
Show how to use unsharp masking algorithm.
No image processing toolbox is needed.
- 2010-12-20 03:33:46下载
- 积分:1
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ml1
使用matlab实现的,基础单变量以及多变量梯度下降算法,和信号分类以及信号归一化部分算法,是机器学习领域最基本的代码,希望大家多多交流(matlab implementation of basic univariate and multivariate gradient descent and signal classification algorithms, machine learning basic code, hope that more exchanges)
- 2013-10-29 15:34:24下载
- 积分:1
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vtk-CT(MC)
MC算法实现CT医学图像的三维重建,面绘制技术(MC algorithm CT medical image reconstruction, surface rendering technology)
- 2014-02-25 10:14:46下载
- 积分:1
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ch1
document about computer vision - image processing
- 2013-08-19 18:01:58下载
- 积分:1
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universal_index
图像质量评价指标,是这篇文章“a universial image quality index”的源代码 (Image quality evaluation, the article " a universial image quality index" of source code)
- 2012-08-14 10:01:33下载
- 积分:1
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shuangfengquyuzhi
双峰法分割图像是一个比较经典的同时也是一个比较使用的图像分割方法(The bimodal France segmented image is a classic is also a use of image segmentation method)
- 2012-07-04 17:10:51下载
- 积分:1
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MatlabFns
关于计算机视觉和图像的matlab工具箱。包括相位一致性特征,空间特征检测,积分图像,非极大值抑制和滞后阈值,边链接和线段拟合,去噪,等(MATLAB and Octave Functions
for Computer Vision and Image Processing。such as • Feature Detection via Phase Congruency
• Spatial Feature Detection
• Integral Images
• Non-Maxima Suppression and Hysteresis Thresholding
• Edge Linking and Line Segment Fitting
• Test Grating for Edge Detection
• Image Denoising
• Surface Normals to Surfaces
• Scalogram Calculation
• Anisotropic diffusion
• Grey Scale Transformation and Enhancement
• Frequency Domain Transformations
• Functions Supporting Projective Geometry
• Feature Matching
• Model Fitting and Robust Estimation
• Fingerprint Enhancement
• Interesting Synthetic Images
• ASCII Image Generation
• Rotation Transforms
• Image Blending
• Colourmaps and colour conversions
• Image Display, Image Writing and Miscellaneous
)
- 2013-05-23 14:32:01下载
- 积分:1
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calibration
可以成功实现双目视觉标定,在做试验的时候成功实现(Binocular vision can be successfully realize calibration tests in the time to do the successful implementation of)
- 2007-10-30 13:02:06下载
- 积分:1
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matlab_regiongrowing
此程序为区域增长经典算法,程序后面有详细注释(This procedure is a classical algorithmfor the regional growth,the procedure followed in detail the Notes)
- 2009-03-05 14:19:04下载
- 积分:1