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114
说明: 通过VC++实现对MATLAB的调用VC++等高级程序语言调用MATLAB中程序(函数)的方法,融合了VC++与
MATLAB两种不同的语言,大大提高了编程效率。(By VC++ to realize the MATLAB call VC++ and other high-level programming language called MATLAB in the program (function) method, combines the VC++ and MATLAB are two different languages, greatly improve the programming efficiency.)
- 2010-03-31 20:41:18下载
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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
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StevenStablePoi
用多点法求取方程的根,仅供参考仅供参考仅供参考仅供参考(Equation with multi-point method to strike root, for reference purposes only for reference purposes only)
- 2011-09-27 10:43:05下载
- 积分:1
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positive-portrait-identification-
一种正面人像识别的方法,论文.格式caj。利用活动轮廓模型进行人像处理,自动提取人脸轮廓。(A positive portrait identification method)
- 2013-09-23 10:38:59下载
- 积分:1
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GaussianBeam2D
describe a gaussian beam 2D
- 2011-01-20 19:32:33下载
- 积分:1
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FastFourieTransform
说明: 计算快速傅里叶变换的蝶形算法,用matlab实现的(FFT butterfly calculation algorithm implemented with matlab)
- 2010-04-19 14:21:24下载
- 积分:1
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PSO
用于迭代式搜索,和GA算法有相似之处,但收敛速度更快(for iterian searching)
- 2012-03-28 11:52:13下载
- 积分:1
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yanzou
实现用MATLAB程序产生歌曲,包括卡农,小星星和加勒比海盗的代码。(Songs MATLAB program, including Canon, little star, and Pirates of the Caribbean code.)
- 2012-08-21 17:36:02下载
- 积分:1
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BLDC4
UN PROGRAMM DE BRUSHLESS DC MOTOR IN M FILE PART 4
- 2012-09-03 00:53:41下载
- 积分:1
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make_similar_character_font
从汉字字库中提取相似汉字,建立相似汉字库,进行OCR的前提。(Extracted from the Chinese character is similar to Chinese characters, the establishment of similar character library, perform OCR on the premise.)
- 2011-11-25 11:31:40下载
- 积分:1