1) AIFD
仿射不变傅氏描述子
1.
To improve the performance of 3D objects recognition system, a method is proposed to extract the affine-invariant Fourier descriptors (AIFD), color moments and texture features from the 2D images of 3D objects.
提出从三维物体的二维图像中提取仿射不变傅氏描述子、色彩矩及纹理特征,组成一个25维的特征向量,送入支持向量机训练并用于三维物体识别。
2) affine invariant Fourier descriptor(AIFD)
仿射不变傅里叶描述子
3) affine invariant descriptor
仿射不变描述
4) Fourier descriptor
傅立叶描述子
1.
Methods The shape,margin,and intensity features including Fourier descriptor,roughness,and ratio of mean intensity were calculated from B-mode ultrasonic benign tumor and malignant tumor images.
方法通过提取良性和恶性肿瘤B超图像的形态特征和灰度特征,包括傅立叶描述子,粗糙度和前后场回声比,组成特征矢量,再用k-均值聚类算法对特征矢量进行分类处理。
2.
A Fourier descriptor based digital watermarking method is proposed for 2-dimensional Engineering drawings.
提出了一种基于傅立叶描述子的二维工程图的数字水印方法。
3.
To describe the characters of aircraft simply and efficiently,moment invariants and Fourier descriptors are combined.
采用矩不变量和傅立叶描述子相结合的表示方法简单而有效地描述飞机的特征；采用了分布存储的ＢＰ神经网络来减少存储量和加速搜索识别过程，并对ＢＰ网络的收敛方法提出了若干措施加速其收敛过程。
5) Fourier descriptors
傅立叶描述子
1.
Then, two measures of shape features, including moment and Fourier descriptors (FD), were computed for each region,and their average value was calculated.
对这些病例按三个步骤进行分析 :首先 ,应用Snake模型提取结节的轮廓线 ;然后 ,计算由轮廓线所围成的区域的Legendre矩和傅立叶描述子(FD) ,并求出平均值 ,最后 ,对测量结果 ,利用SAS软件包进行t检验计算机统计学处理。
2.
A novel method for designing the classifier of multi-dimensional data is proposed,which uses radar chart of multi-statistics to show multidimensional data and applies Fourier descriptors to recognize the radar chart.
基于雷达图表示多维数据的原理,提出一种利用傅立叶描述子识别雷达图形的可视化数据分类新方法。
3.
A new gait recognition method based on Fourier descriptors is presented.
提出了基于傅立叶描述子的步态识别方法。
6) Fourier descriptor
傅里叶描述子
1.
In order to describe the lip contours in a lipreading system automatically and quickly,Fourier descriptors are applied to describe and recognize the lip contours.
为了能够自动、快速地表示唇读系统中所必须的唇形轮廓特征,将傅里叶描述子用于唇形轮廓的描述和识别过程中,采用边界傅里叶变换的方法,得到非对称唇形模型中唇形轮廓的傅里叶描述子,用来刻画唇动过程中唇形轮廓的形状信息,并将傅里叶描述子φ作为唇形轮廓的特征向量,应用于基于隐马尔可夫模型(HMM)的视觉驱动语音合成系统。
2.
Based on Fourier descriptors,the feature vector of the driving wheel contour is constructed,which is an invariant to rotation,scaling,translation and starting point,then the recognition of driving wheel is realized.
采用傅里叶描述子构造了具有平移、旋转、尺度缩放及起始点不变性的轮廓形状特征向量,实现了驱动轮的识别;进而抽取图像特征和估计驱动轮—相线在图像空间中的相对位姿,并设计了带有死区的比例控制律来实现驱动轮—相线“对中”视觉伺服控制。
3.
Through Fourier transformation,the flame shape Fourier descriptors were calculated.
提出一种基于火焰形状的氧化铝回转窑火焰图像的检索方法,对回转窑火焰的形状进行深入分析,根据其特点,提出一种描述火焰形状的基准距离函数,通过傅里叶变换得到火焰图像形状的傅里叶描述子。
补充资料：仿射
仿射
affinity
仿射!确nity;呻中Ifu盯er] 仿射变换陌币ne transfo瓜atlon)的简称定义为非退化线性代换 二A派丰“
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条