-
jiyuzuixiaoerchengfagaijindesuijituoyuanjiance
为了提高数字图像中椭圆检测的效率和准确性,提出了一个基于最小二乘法的改进的随机椭圆检测算法.
该算法随机选取图像中的3 个边缘点,在以这3 个点为中心的窗口内,从边缘点中拟合出可能椭圆,并通过随机选
取的第4 个边缘点来确认可能椭圆. 利用直接最小二乘法椭圆拟合的特性,引入可能椭圆边缘点收集和椭圆重新
拟合的迭代过程来提取最终的椭圆参数. 通过对含有不同噪声的仿真图片和包括残缺椭圆的实际图片的实验表
明,新算法的改进是有效的. 与原算法相比,新算法降低了对参数的依赖性,提高了检测的速度、稳定性和准确性,
同时保留了原算法的抗噪声能力.(: An imp roved randomized ellip se detection algorit hm based on least square approach was proposed
to enhance t he efficiency and accuracy of ellip se detection in digital images. This algorit hm randomly se2
lect s three edge point s in t he image , and t hen uses least square approach to fit all t he edge point s in three
windows , which are defined by t he t hree edge point s. The forth edge point is randomly selected to judge
whet her a possible ellip se exist s in t he image. Utilizing the characteristic of direct least square fit ting of
ellip se , an iteration process of edge point collecting and ellip se refit ting of possible ellip se was int roduced
to ext ract t he final ellip se’s parameters. Artificial images wit h different level s of noise and nature images
containing incomplete ellip ses were employed to test t his algorithm. Experimental result s show that t he
improvement s are notable. Compared with the original algorit hm , t he propo sed algorit hm reduces)
- 2020-11-01 11:19:55下载
- 积分：1
-
遥感图像分类工具箱Active-Learning
遥感图像分类工具箱，包含多种基于支持向量机分类器的主动学习算法(active learning toolbox, used for remote sensing data classification, includes most popular svm-based active learning algorithms.)
- 2013-05-11 14:03:27下载
- 积分：1
-
量子图像加密daima
matlab实现量子图像加密，包括Arnold变换，双随机相位变换，信息熵，相邻像素相关性分析(matlab quantum encryption, including Arnold transform, double random phase transformation, entropy, correlation analysis of adjacent pixels)
- 2021-01-06 14:08:54下载
- 积分：1
-
cnn
用于图像分类的源代码，深度学习的应用，cnn卷积神经网络的使用，可以自己更换数据集或者调优，适合初学者使用！(For image classification of the source code, the application of in-depth learning, cnn convolutional neural network, you can replace the data set or tuning, suitable for beginners!)
- 2021-05-14 04:30:03下载
- 积分：1
-
motionTracking
一个基于帧间差分的目标跟踪matlab源代码，解压后可直接运行，对学习跟踪有重大帮助(Frame difference of a target tracking based on matlab source code, extract can be directly run a major help in learning track)
- 2010-10-27 10:56:32下载
- 积分：1
-
VMD
VMD分解阈值去噪，进行极优模态分量的选择(VMD decomposition threshold denoising, selection of very excellent modal components.)
- 2018-06-05 10:22:04下载
- 积分：1
-
基于无损压缩的加密图像可逆信息隐藏_郑淑丽
说明： 针对现有方法存在的隐藏容量低、操作不灵活的缺陷，文章提出了一种基于无损压缩的加密图像可逆 信息隐藏算法。(In view of the defects of low hiding capacity and inflexible operation of the existing methods, this paper proposes a reversible information hiding algorithm for encrypted images based on lossless compression.)
- 2020-11-05 16:09:52下载
- 积分：1
-
Butterworth
对整幅三维影像数据进行Butterworth高通滤波处理（10阶2次），先进行傅里叶变换，利用巴特沃斯高通滤波器数学模型进行变换，在傅里叶逆变换得到新数据(For the entire three-dimensional image data Butterworth high-pass filtering (10-order twice), the first Fourier transform, use Butterworth high-pass filter to transform the mathematical model, the inverse Fourier transform to obtain new data)
- 2015-10-18 10:34:58下载
- 积分：1
-
TVdenoise
全变分去噪
J=tv(I,iter,dt,ep,lam,I0)
输入: I - 灰度图像,
iter - 迭代次数 [1],
dt - 时间步长 [0.2],
ep - 提升参数epsilon [1],
lam - 保真项 lambda [0],
I0 - 输入噪声图像 [I0=I]
([]中的是缺省值)( 全变分去噪
J=tv(I,iter,dt,ep,lam,I0)
输入: I - 灰度图像,
iter- 迭代次数 [1],
dt - 时间步长 [0.2],
ep - 提升参数epsilon [1],
lam - 保真项 lambda [0],
I0 - 输入噪声图像 [I0=I]
([]中的是缺省值))
- 2010-10-22 17:29:44下载
- 积分：1
-
lvbochaosheng
对李纯明的DRLSE进行了改进 利用各向异性扩散提高了分割弱边缘的能力 改进的高斯滤波代替惩罚项 加快了演化速度 节省了时间(The DRLSE to LiChunMing improved using anisotropic diffusion improve the segmentation of improvement of the ability weak edge gaussian filtering instead of penalty term accelerated evolution speed save time)
- 2012-07-20 11:06:03下载
- 积分：1
