1) SIFT algorithm SIFT算法1. Then the trilinear constraint and trifocal-tensor-based pixel transfer error computation method is introduced to remove the outliers produced by the SIFT algorithm. 采用SIFT算法对三视图像进行特征匹配,引入计算机视觉中的三线性关系和基于三焦张量的像素转移误差计算方法,对...
In a sift algorithm, after SIFT feature vectors of two images are generated, a certain key point of an image I is taken, two closest key points in an image II are found out in a traversing manner, in the two key points, and if division of a closer distance and a closest distance ...
1、提升的SIFT算法:论文的作者发现,在检测特征点时,大部分的特征点都分布在DoG尺度空间的第一层,所以,作者提出,在进行特征点的检测时可以直接只在第一层进行检测,在这儿说的第一层是指DoG金字塔中的第一个倍频层,不是每一个倍频层上的第一层。 2、在找到特征点并进行匹配后,再根据先验信息对匹配后的特征点...
摘要: 针对SIFT算法复杂度高、计算时间长、影响立体匹配的实时性等问题,提出了一种改进的立体视觉特征点匹配算法该算法从两个方面对SIFT算法进行改进:首先利用24维特征描述符代替128维特征描述符,以降低计算复杂度;其次在图像对匹配过程中采用改进的BBF搜索算法,通过引入最小优先级队列的限制条件和匹配精度更高的马氏距...
Aiming at improving the performance of scale invariant feature transform (SIFT) algorithm during the registration of optical and synthetic aperture radar (SAR) images, a new SIFT algorithm is proposed. Firstly, the nonlinear diffusion scale space of optical and SAR images is constructed by using non...
In the new algorithm, Curvelet first used to denoise, then RANSAC optimized SIFT algorithm used to stitch images. Experiments show that the new algorithm is better to remove error matching points. It improved the accuracy of local invariant feature matching. New algorithm has a good anti-noise ...
(1):72 76 LUChaoliang,MALi hua,CHENHao AnimprovedalgorithmforSIFTfeaturematching[J] Journalofairforceengineeringuniversity:naturalscienceedition,2014,15(1):72 76 改进的SIFT特征匹配算法卢朝梁,马丽华,陈豪(空军工程大学信息与导航学院,陕西西安,710077)摘要针对SIFT特征匹配算法在特征空间中进行历遍搜索,匹配...
摘要 Due to the particularity of the text images,using the Scale Invariant Feature Transform(SIFT) algorithm to extract ca... 关键词 text image / template matching / Scale Invariant Feature Transform(SIFT) algorithm / extreme...
include<opencv2\imgproc\imgproc.hpp>#include"SIFT.h"#include<iostream>#include<stdio.h>#include<conio.h>usingnamespacecv;usingnamespacestd;intmain(){ cout <<"hello"; Mat image =imread("abc.jpg",0); cout << image.channels() << endl;SIFTcontroller(image); controller.DoSIFT();waitKey...
SIFT(Scale Invariant Feature Transform)特征匹配算法是Lowe提出来的用于图像特征匹配的算法,是目前特征匹配领域的热点,对图像的旋转,尺度缩放和亮度变换保持不变,对视角变换,仿射变换保持一定程度的稳定。SIFT特征点是图像的一种尺度不变局部特征点,具有独特性好,信息量丰富,多量性,高速性,可扩展性等特点。该算法...