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GRAPPA
说明: 快速磁共振成像领域的GRAPPA(generalized auto-calibrating partially parallel acquisitions)算法实现(GRAPPA realization in fast MRI)
- 2020-05-11 10:09:07下载
- 积分:1
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CNN 可用
卷积神经网络(Convolutional Neural Network)是一个专门针对图像识别问题设计的神经网络。它模仿人类识别图像的多层过程:瞳孔摄入像素;大脑皮层某些细胞初步处理,发现形状边缘、方向;抽象判定形状(如圆形、方形);进一步抽象判定(如判断物体是气球)。(Convolutional neural network is a neural network specially designed for image recognition. It imitates the multi-layer process of human recognition image: pupil ingestion of pixels; some cells in the cerebral cortex preliminary processing to find shape edges and directions; Abstract judgment of shape (such as circles and squares); and further Abstract judgment (such as judging objects are balloons).)
- 2020-06-17 07:40:01下载
- 积分:1
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New Compressed (zipped) Folder
说明: matlab code for optimization
- 2020-07-01 22:16:45下载
- 积分:1
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图像灰度变换的程序Image-gray-scale-transformation
详细说明:几个关于图像灰度变换的程序。包括图像反色,图像的对数灰度变换,指数灰度变换,线性灰度变换,灰度切割,图像平均降噪。
(Several of the image gray-scale transformation process. Including anti-color image, the image of the number of gray level transformation, index gray-scale transformation, linear gray level transformation, gray cut, the average image noise.)
- 2020-07-09 11:28:55下载
- 积分:1
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Segmentacion_Watershed
Watershed Segmentation
- 2016-07-25 08:59:25下载
- 积分:1
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C# 实现简单数字验证码解析(Tesseract OCR 解析验证码) 实例代码
具体实现思路:以4位数字的验证码为例 1、人工将验证码的4位数字每位对应的代码存入数据库中,每位存入0-9对应的代码,每个数可以多存这样可以提高识别率; 2、获取验证码以后,对其进行去背景、灰度处理、去噪点处理、分片处理以后生成每位数字对应的代码; 3、去背景色,这一步的目的是把验证码和背景颜色区别开来。4、去噪声:这一步要取出图像上的孤立点。这些孤立点被认为是噪声。 孤立点的定义:某个点,周围没有与该点等值的点。 或者某个连接块,该连接块的元素的个数小于某个给定值K, 把元素个数很小的连接块也定义为孤立点,有助于去处噪声。 去噪声算法:参照去背景算法。 5、图像锐化:图像锐化的目的是增强边界。这一步是可选的。看验证码的情况,这一步可以跳过。 6、图片有效区域截取:这个操作是将图片除验证码字符以外的边框去掉,只留下验证码字符图片,这样保证分片的准确性。 7、图片分片处理,这个处理是将整个图片分割成单个字符图片。8、拿分片图像生成的代码(eg:000111110011…..)与DB中已有代码相比较,取得相似度最高的即要验证码的字符; 注:如果DB的样本越多,识别的准确率也越高,但是速度会相应变慢
- 2013-02-18下载
- 积分:1
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QR
说明: 二维码识别,matlab代码,内附二维码,内有界面,选择输入,注意输入顺序!(Two dimensional code identification, matlab code, two-dimensional code inside, interface inside, select input, pay attention to the input sequence!)
- 2020-04-09 22:38:57下载
- 积分:1
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ssim_index
基于相似度的图像质量评价算法Structural SIMilarity (SSIM) index的实现。(This is an implementation of the algorithm for calculating the
Structural SIMilarity (SSIM) index between two images. Please refer
to the following paper:
Z. Wang, A. C. Bovik, H. R. Sheikh, and E. P. Simoncelli, "Image
quality assessment: From error visibility to structural similarity"
IEEE Transactios on Image Processing, vol. 13, no. 4, pp.600-612,
)
- 2009-06-06 17:19:40下载
- 积分:1
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基于OPENCV的SIFT特征提取与匹配算法
OPENCV_SIFT_VC6
基于OPENCV的SIFT特征提取与匹配算法。包含完整的从图像高斯金字塔、DOG、空间极值点提取、关键点描述、KDtree匹配等关键步骤的全部函数实现,对全面深入理解Lowe的SIFT算法有莫大帮助。程序运行前须安装(1)OpenCV: http://opencvlibrary.sourceforge.net
(2)SIFT: http://web.engr.oregonstate.edu/~hess/index.html,并配置其环境参数。(OPENCV the SIFT-based feature extraction and matching algorithm. Contains a complete Gaussian pyramid from the image, DOG, space extremum point extraction, description of key points, KDtree matching key step in the realization of the full function of the comprehensive and in-depth understanding of Lowe s SIFT algorithm of tremendous help. Program to run before the installation of (1) OpenCV: http://opencvlibrary.sourceforge.net (2) SIFT: http://web.engr.oregonstate.edu/ ~ hess/index.html, and configure the parameters of their environment.)
- 2020-06-26 03:00:02下载
- 积分:1
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360°图像序列的柱面全景拼接算法
说明: 360°图像序列的柱面全景拼接算法,matlab仿真程序。(360 image sequence cylindrical panoramic mosaic algorithm, matlab simulation program.)
- 2020-11-04 09:41:49下载
- 积分:1