[图形图象] MongoDB-jiagou
本文图片来自 Ricky Ho 的博文 MongoDB 构架（MongoDB Architecture），这是个一
听就感觉很宽泛的话题，但是作者在文章中确实对 MongoDB 由内至外的架构进行了剖析。
本文截取了其文章中的几张重点架构示意图片进行简单描述。希望对大家有用
This picture comes Ricky Ho s MongoDB architecture (MongoDB Architecture), which is one
Listening to the very broad topic, but the author in the article did MongoDB the inside to the outside of the structure of the analysis.
This article intercepts a few descriptive pictures of the key structure in the article for a brief description. Hope for everyone useful (2017-03-27, Java, 549KB, 下载1次)
[图形图象] VC-
一个多目标跟踪的matlab代码，里面附有说明文档。其中背景差分法可以实现实时更新。该代码在检测与跟踪少量目标时效果很好，但是跟踪目标大于8后，效果下降很多-
A multi-target tracking matlab code, which accompanied the document. Background subtraction method which can achieve real-time updates. The code when a small target detection and tracking with good results, but to track the target is greater than 8, down a lot of the effect- (2014-04-14, Visual C++, 2KB, 下载6次)
[图形图象] image-matching-
针对
１２８
维
ＳＩＦＴ
特
征向量，采用距离匹配和余弦相似度匹配相结合的测度方法，利用特征点方向一致性进一步降低误匹配率
．
实验结
果表明：改进算法对图像的缩放、旋转、光照、噪声和小尺度的视角变换均有较好的匹配效果
．
与原算法相比，在保
证匹配点数和匹配时间的基础上，改进算法对旋转、缩放、噪声模糊和光照变换的误匹配率平均降低
１０％～２０％
，
对于小尺度的视角变换，误匹配率平均降低
５％．
For 128-dimensional SIFT feature vectors, using distance matching and cosine similarity measure combining matching method using feature points consistent direction to further reduce false match rate. The experimental results showed that: improved algorithm for image scaling, rotation, light, noise, and small-scale perspective transformation have better matching results. Compared with the original algorithm, while ensuring match points and matching time, based on the improved algorithm for rotation, scaling, noise, blur and light transform the average rate mismatch is reduced by 10 to 20 , for small-scale perspective transformation, mismatch average rate reduction of 5 . (2013-11-11, PDF, 390KB, 下载7次)
[图形图象] CUDASupercomputingMasses
Dr Bobbs-CUDA Supercomputing for the Masses共21篇经典博客文章整理版，该系列文章为NVIDIA官方网站培训中心推荐的博文，非常值得学习GPU和CUDA编程的人看
Dr Bobbs-CUDA Supercomputing for the Masses for a total of 21 article classic blog article finishing version, this series of articles for NVIDIA s official website training center recommended bowen, extremely is worth learning GPU and CUDA programming to see
(2011-12-02, C/C++, 4420KB, 下载25次)
[图形图象] A_barycenter_based_fast_thinning_algorithm
分析快速细化算法和 OPTA 细化算法不足产生的内在原因 ,提出一种新的基于重心的快速细化算法.该算
法根据被细化图像的特点 ,用密度重心快速将纹线细化到 3 个像素宽度内 ,计算 4 邻域拓扑实现彻底细化.仿真结
果表明 ,在细化效率方面 ,该算法一次遍历删除超过一半的大量冗余像素 ,是快速细化算法的 3～7 倍 在细化要求
方面 ,该算法可达到绝对单像素、 光滑无毛刺 ,并能保持端点不被吞噬 ,能够很好地满足图像细化的要求.
The int rinsic origin of deficiencies in both t he fast t hinning algorit hm ( F TA) and one2pass
t hinning algorithm (OPTA) was analyzed , and a barycenter based fast t hinning algorit hm was presented.
According to t he image’ s feat ure to be fined , the veins of t he image were fined to be of t hree pixel in widt h
by using density barycenter and t hen t he 42neighborhood topology was comp uted to make complete
t hinning. Simulation result showed t hat , in connection wit h t he t hinning efficiency , t he proposed algo2
rit hm exhibited so perfect ly that a great amount (more t han a half ) of redundant pixel s was eliminated af2
ter single overall checking , being 3 to 7 times faster t han t hat wit h fast t hinning algorit hm. As to t he re2
quirement of t hinning , this algorithm could implement absolute single2pixel t hinning wit hout blurred edges
and keep the ends un2swallowed , so that t he requirement of image t hinning was well met . (2010-05-12, PDF, 531KB, 下载55次)
[图形图象] HalconMatch
这是本人写的一款基于HALCON形状匹配的源码，识别率比较高，模板客任意制作。
This is my written a source code based on HALCON shape matching, recognition rate is relatively high, the template off any produce. (2009-12-18, Visual C++, 292KB, 下载444次)
[图形图象] svm
相关反馈是在用户和查询系统的交互中，用户对检索结
果进行评价并标记相关和不相关样本，然后将这些标记图像
作为训练样本反馈给系统，以实时修改系统的查询策略，逐步
接近直至满足用户的查询需求
Related feedback in the user and the interactive query system, users of the search node
Evaluation of fruit and tag-related and non-relevant samples, and then images of these markers
Feedback as a training sample to the system to query real-time strategy to amend the system gradually
Until close to meeting the needs of the user s query (2009-08-06, Visual C++, 363KB, 下载56次)
[图形图象] z1
基于图像小波分解的特点和小波分解后高频小波系数的统计特性 构造了一种新阈值函数的去噪算法
摘 要
,
。
:
介绍了新阈值函数的原理 推导了算法公式 该阈值函数连续 可导 实验结
对比传统的硬阈值 软阈值去噪算法
, , 。 、 。
、
利用新阈值函数进行图像去噪 能够有效地抑制图像噪声及马赛克效应
果表明
。
, ,
Accordingtoanalysisofthepropertiesofwavelettransformandstatisticalcharacteristicsofwaveletcoeffi-
Abstract:
,
thispaperproposesanovelwaveletthresholdmethod.Comparingwithconventionalsoftandhardthresholdfunc-
cient
, ,
tion thebasicprincipleofthisnewthresholdfunctionisintroduced andthealgorithmsarededuced.Thisnewthresh-
oldfunctioniscontinualanddifferentiable.Experimentalresultsshowthatthedenoisingalgorithmcanmitigatethemo-
saicappearanceeffectively. (2009-05-30, C/C++, 56KB, 下载50次)
[图形图象] conint
所谓整数接力是指将n 个正整数前后拼接成一个数。不同的接力方式将得到不同的结
果。例如n = 3 时，3 个正整数1，2，3 的接力结果有：123，132，213，231，312，321。
The so-called integer n refers to relay a positive integer into a number of before and after splicing. Relay different ways will be different results. For example, n = 3 when 1,2,3 integer 3 is the result of the relay are as follows: 123,132,213,231,312,321. (2009-05-15, Visual C++, 273KB, 下载6次)
[图形图象] 3Ddx1
依据一本OpenGL上的例子修改的，在OGLES上没有找到绘画QUAD的函数，就用了两个三角形来替代，主要用到的还有FOG等效果。
运行时，按左右将重新生成随机地形，按下退出。
OpenGL on the basis of a modified example, in OGLES on QUAD painting did not find the function, used to replace the two triangles, there are mainly used, such as the effect of FOG. Running around will be re-generated by random topography, press Exit. (2008-05-25, Visual C++, 61KB, 下载8次)
[图形图象] cone5
如何使用ＶＴＫ在一个窗口中显示一个锥体，把鼠标放置于窗口中，移动鼠标就可以控制锥体绕其重心旋转
how to use a window in a show of MERCOSUR, and the mouse placed on the window, Mobile mouse on the control Cone rotation around its center of gravity (2006-11-07, Visual C++, 19KB, 下载6次)