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nen_ku86
cordic matlab simulation algorithm, Accuracy can reach 98%, Is the topic of the elementary school stage curriculum design.
- 2017-09-16 16:39:18下载
- 积分:1
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close all
说明: 小波变化是对傅里叶变换和短时傅里叶变换的一个突破,其改变就在于,将无限长的三角函数基换成了有限长的会衰减的小波。(Wavelet transform is a breakthrough of Fourier transform and short-time Fourier transform. Its change lies in that the infinite trigonometric function base is replaced by the finite attenuation wavelet.)
- 2020-06-26 16:29:04下载
- 积分:1
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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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rotation-and-scaling
对图像进行旋转和缩放的源代码,支持原图像的抽样处理及任意角度的旋转(The image rotation and scaling in any direction)
- 2014-11-25 14:27:18下载
- 积分:1
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jpeg_C_orign
jpeg编码工程(YUV2RGB)
文件中含有说明文件,保证可以使用(jpeg encoding works (YUV2RGB) file contains the documentation to ensure that you can use)
- 2007-11-15 20:43:30下载
- 积分:1
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shearlet-aticle
剪切波是最近几年发展的图像处理的有利工具,这是几篇不错的论文,希望可以对大家有所帮助。(Shear wave is the last few years the development of image processing tool, this is a few good paper, hope to help everyone.)
- 2011-12-26 09:08:08下载
- 积分:1
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zhixin
根据图像色彩信息,寻找图像的质心,以便对目标的跟踪(The image color information, look for the image of the center of mass to the target track)
- 2015-07-20 15:07:49下载
- 积分:1
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EmguCVTool-master
C#+EmguCV机器视觉开发平台,功能:基本的图像处理工具、随意配置执行流程、二维码识别、文字识别等等。(C+EmguCV machine vision development platform, functions: basic image processing tools, arbitrary configuration of the execution process, two-dimensional code recognition, character recognition and so on.)
- 2021-02-18 16:39:45下载
- 积分:1
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target
说明: 一个目标检测识别的matlab程序,用于初学者使用matlab编程,用的比校全面(Identification of a target detection matlab program for beginners to use matlab to program than the school used a comprehensive)
- 2008-10-23 17:02:08下载
- 积分:1
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omp
图像处理中压缩感知理论,对一维信号运用omp重构(Compressed sensing image processing theory, the use of one-dimensional signal omp reconstructed)
- 2012-12-13 22:37:25下载
- 积分:1