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PG_BOW_DEMO
图像的特征用到了Dense Sift，通过Bag of Words词袋模型进行描述，当然一般来说是用训练集的来构建词典，因为我们还没有测试集呢。虽然测试集是你拿来测试的，但是实际应用中谁知道测试的图片是啥，所以构建BoW词典我这里也只用训练集。
其实BoW的思想很简单，虽然很多人也问过我，但是只要理解了如何构建词典以及如何将图像映射到词典维上去就行了，面试中也经常问到我这个问题，不知道你们都怎么用生动形象的语言来描述这个问题？
用BoW描述完图像之后，指的是将训练集以及测试集的图像都用BoW模型描述了，就可以用SVM训练分类模型进行分类了。
在这里除了用SVM的RBF核，还自己定义了一种核： histogram intersection kernel，直方图正交核。因为很多论文说这个核好，并且实验结果很显然。能从理论上证明一下么？通过自定义核也可以了解怎么使用自定义核来用SVM进行分类。(Image features used in a Dense Sift, by the Bag of Words bag model to describe the word, of course, the training set is generally used to build the dictionary, because we do not test set. Although the test set is used as the test you, but who knows the practical application of the test image is valid, so I am here to build BoW dictionary only the training set.
In fact, BoW idea is very simple, although many people have asked me, but as long as you understand how to build a dictionary and how to image map to the dictionary D up on the line, and interviews are often asked me this question, do not know you all how to use vivid language to describe this problem?
After complete description of the image with BoW, refers to the training set and test set of images are described with the BoW model, the training of SVM classification model can be classified.
Apart from having to use the RBF kernel SVM, but also their own definition of a nuclear: histogram intersection kernel, histogram )
- 2011-11-01 17:01:09下载
- 积分：1
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WNNM_MC_code
对于低水平的视觉情况下，加权核规范最小化算法及其应用。(Weighted Nuclear Norm Minimization and Its Applications to Low Level Vision)
- 2020-11-26 01:19:31下载
- 积分：1
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swt_enhance_main
sar图像处理的滤噪小程序 用于图像的增强。(sar Denoising image processing applet for image enhancement.)
- 2008-03-11 16:20:03下载
- 积分：1
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目标跟踪
通过手动框选目标区域，然后进行自动跟踪，使用的算法是Camshift，自适应均值漂移(By manually selecting the target area, then automatic tracking, using the algorithm is Camshift, adaptive mean shift)
- 2020-10-09 11:07:35下载
- 积分：1
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Spotlight-FMCW_SAR-sliding-sub-aperture-algorithm
滑动聚束FMCW_SAR的子孔径成像算法Spotlight FMCW_SAR sliding sub-aperture algorithm(Spotlight FMCW_SAR sliding sub-aperture algorithm)
- 2011-01-08 19:41:00下载
- 积分：1
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image-processing
全部都是图像处理的最新文献，与激光雷达有关，利用激光与摄像头结合，实现主动驾驶(image processing)
- 2021-03-18 16:09:20下载
- 积分：1
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插帧
图像处理，通过matlab程序实现视频插帧的功能(Image processing and video frame insertion through MATLAB program)
- 2020-08-18 15:58:22下载
- 积分：1
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aa
说明： 小波模极大值用于边缘特征提取.很好的一个matlab算法，可以直接验证。(Wavelet modulus maxima for edge feature extraction algorithm matlab good one can be directly verified.)
- 2013-07-05 21:02:59下载
- 积分：1
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feature-extract
几个大牛对集成了国内外特征提取最前沿的算法，特征提取，DOG,HARRIS,HARRIS-LAPLACE,HARRIS-AFFINE,MSER.描述符，SIFT,AFFINE-SIFT,GLOH.经测试，速度快，描述符准确。(Integration of feature extraction algorithms from several expert of domestic and international, feature extraction： DOG, HARRIS, HARRIS-LAPLACE, HARRIS-AFFINE, MSER； Descriptors： SIFT, AFFINE-SIFT, GLOH. The test reveal the speed and accurate descriptor.)
- 2010-05-10 17:23:44下载
- 积分：1
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matlab图像稀疏表示代码
matlab图像稀疏表示的代码。比较详细。(Matlab image sparse representation of code.)
- 2018-04-13 14:30:05下载
- 积分：1
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