L0330

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)

应用视觉保真度（ＶＩＦ）的方法对图像增强方法的优劣做客观的评价。从而达到用客观的评价方法评价一种增强方法的优劣性。(The application of visual fidelity (VIF) to do an objective evaluation of the pros and cons of the image enhancement method. So as to achieve an enhanced method of objective evaluation methods evaluate the advantages and disadvantages.)

金字塔模板匹配，一个很有商业价值的软件【我背着导师上传给大家的，希望对整个中国的相关领域开发者有帮助】(Pyramid template matching, a great commercial value of software 【I tutor upload their backs to you, and I hope the related areas of China as a whole help developers】)

基于MATLAB的图像处理源程序集，包括阈值、二值化、灰度变化，边缘提取等等(MATLAB based image processing source code set, including threshold, binary, gray scale, edge extraction, etc.)

AVIRIS 高光谱遥感数据,220个波段，145*145(AVIRIS Hyperspectral data,220bands，145*145)

说明：  代码很好的实现了基于a-star的最短路径寻找算法，并可以对寻找的路径有一个限制(Code is a good realization of a-star-based shortest path search algorithms, and can find the path there is a limit)

Segmentation Algorithm

基于SIFT的一种新特征点匹配算法,比SIFT还强,(Based on SIFT feature points of a new matching algorithm is also stronger than the SIFT,)

使用matlab对医学图像进行处理，不同去噪方法结果的对比。(matlab image nosing)

利用TMS320VC5509A为核心的DSP处理硬件,通过软件实现自适应Notch滤波和瞬时频率序列方差检测(VIRD)运算,在较低信噪比使用条件下完成对单频测距信号的可靠检测和判定(Using tms320vc5509a DSP core processing hardware, adaptive notch filter and variance of instantaneous frequency sequence detection (Vird) operation is realized by software, in low signal to noise ratio under the conditions of use complete reliable detection of single frequency ranging signal and judging)