-
hangshehoufangjiaohui
应用于航空摄影测量竖直摄影模型的空间后方交会,用迭代的方法求解,摄像机的6个外方位元素(Measurement of vertical aerial photography used photographic model space resection, using an iterative method for solving the camera of the six exterior orientation elements)
- 2010-01-13 19:00:16下载
- 积分:1
-
based-on-GA-solve--VRP
说明: 求解多目标车辆路径问题的遗传算法的小文章(based on GA solve the mutil-objects problem with the help of time window)
- 2011-04-05 19:49:20下载
- 积分:1
-
sift
1 SIFT 发展历程
SIFT算法由D.G.Lowe 1999年提出,2004年完善总结。后来Y.Ke将其描述子部分用PCA代替直方图的方式,对其进行改进。
2 SIFT 主要思想
SIFT算法是一种提取局部特征的算法,在尺度空间寻找极值点,提取位置,尺度,旋转不变量。
3 SIFT算法的主要特点:
a) SIFT特征是图像的局部特征,其对旋转、尺度缩放、亮度变化保持不变性,对视角变化、仿射变换、噪声也保持一定程度的稳定性。
b) 独特性(Distinctiveness)好,信息量丰富,适用于在海量特征数据库中进行快速、准确的匹配[23]。
c) 多量性,即使少数的几个物体也可以产生大量SIFT特征向量。
d) 高速性,经优化的SIFT匹配算法甚至可以达到实时的要求。
e) 可扩展性,可以很方便的与其他形式的特征向量进行联合。
4 SIFT算法步骤:
1) 检测尺度空间极值点
2) 精确定位极值点
3) 为每个关键点指定方向参数
4) 关键点描述子的生成
本包内容为sift算法matlab源码(1 SIFT course of development
SIFT algorithm by DGLowe in 1999, the perfect summary of 2004. Later Y.Ke its description of the sub-part of the histogram with PCA instead of its improvement.
2 the SIFT main idea
The SIFT algorithm is an algorithm to extract local features in scale space to find the extreme point of the extraction location, scale, rotation invariant.
3 the main features of the SIFT algorithm:
a) SIFT feature is the local characteristics of the image, zoom, rotate, scale, brightness change to maintain invariance, the perspective changes, affine transformation, the noise also maintain a certain degree of stability.
b) unique (Distinctiveness), informative, and mass characteristics database for fast, accurate matching [23].
c) large amounts, even if a handful of objects can also produce a large number of SIFT feature vectors.
d) high-speed and optimized SIFT matching algorithm can even achieve real-time requirements.
e) The scalability can be very convenient fe)
- 2012-05-25 15:31:16下载
- 积分:1
-
bldc_sensored_00
matlab file ..
it is very important.i t is a a a very very very imp file.
- 2010-12-01 16:08:47下载
- 积分:1
-
fminlbfgs_version2
可以实现大规模的bfgs功能,进行目标函数的最优化求解,即L-BFGS(Can achieve large scale bfgs function, the objective function is the most optimal solution, ie, L-BFGS)
- 2021-04-11 10:28:59下载
- 积分:1
-
1
说明: FMC聚类算法的仿真,分析,以及仿真图和采集的数据(FMC clustering algorithm simulation, analysis, and simulation map and the data collected)
- 2010-06-04 09:53:01下载
- 积分:1
-
chaos-duffing
duffing(多芬)混沌系统的混沌与临界混沌的图像(Duffing (more fun) Chaos and Critical Image Chaos)
- 2020-07-03 08:40:01下载
- 积分:1
-
xunhuanma
利用MatLab软件,实现一种或几种循环码的编译码过程。再现编码和译码的步骤,绘制有关的性能曲线和波形图,并且能检错和纠错。(use MatLab software, to achieve one or a few recycling code encryption process. Reproduction coding and decoding steps, drawing on the performance curve and waveform map, and can, and error detection and correction.)
- 2007-05-23 14:13:55下载
- 积分:1
-
histo
to genrate a graph in matlab
- 2011-09-17 16:33:28下载
- 积分:1
-
ART
implementation of ART for classification of letters
- 2010-08-23 21:36:44下载
- 积分:1