Description: 基于链码提取的傅立叶描述子,以及傅立叶反变换对图象边界进行重建
-chain code extraction based on Fourier descriptors, and the Fourier transform of image reconstruction border Platform: |
Size: 1024 |
Author:ff |
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Description: 一个基于支持向量机和傅立叶描述子的字符识别算法:傅立叶描述子表征字符的轮廓特征-One based on support vector machine and Fourier descriptors of the character recognition algorithm: Fourier descriptor contour characteristics characterization characters Platform: |
Size: 5120 |
Author:zzflash |
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Description: 在matlab环境下，用傅立叶描述子对图像作形状描述的matlab代码-In matlab environment, using Fourier descriptors to describe the shape of the image for the matlab code Platform: |
Size: 2048 |
Author:zlyzzf |
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Description: 关于傅立叶描述子的GUI界面，本程序可计算目标的一种形状描述符——轮廓傅立叶描述子。并可通过傅立叶描述符重构目标轮廓。-On the Fourier descriptors of the GUI interface, this program objectives computable descriptor of a shape- the outline of Fourier descriptors. Via Fourier reconstruction of the target outline descriptor. Platform: |
Size: 26624 |
Author:xiaoqinkun |
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Description: 利用傅里叶描述子进行物体形状分析：
对于一个物体的边缘即形状来说，可将其看作是平面在空间坐标系下的点集构成的闭合曲线，这样就可用周期函数来描述其外形，可以进行离散傅里叶变换，将图像由空域表示转换到频域表示，变换后的函数可由傅里叶变换系数来描述。对于数字图像的频谱来说，低频分量的分布反映了图像主体的基本形状，高频分量的分布反映图像的细节-Fourier descriptors for object shape analysis: For the edge of an object or shape, it can be regarded as the plane in the space coordinates of the point set consisting of closed curves, so that periodic function can be used to describe its shape , can be discrete Fourier transform, the image from the airspace, said the conversion to the frequency domain that function can be transformed to describe the Fourier transform coefficients. For digital images of the spectrum, the distribution of low-frequency components reflect the basic shape of the main images, high-frequency component of the distribution reflects the image details Platform: |
Size: 11264 |
Author:吴亚鹏 |
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Description: 该文件可实现对手势二值图的轮廓跟踪，并且提取手势轮廓图的傅立叶描述子提取-The document can be realized on the sign binary image of contour tracking and contour extraction gestures Fourier descriptors extraction Platform: |
Size: 4151296 |
Author:yongpenghan |
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Description: 这是一个自编的应用边缘提取和傅立叶描述子来进行数字的表述和识别-This is a self-application of edge detection and Fourier descriptors for the number of statements and identification Platform: |
Size: 407552 |
Author:爱子 |
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Description: 这是一个用带亮度傅立叶描述子提取纹理特征的程序-This is a band brightness using Fourier descriptors of texture feature extraction procedures Platform: |
Size: 1024 |
Author:于梅 |
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Description: 状是含有高层语义信息的视觉特征，在基于内容的图像检索及图像识别中具有重要的应用价值。有很多种描述子可以描述图像的形状特征，傅立叶描述子可以把二维的图像轮廓信息简化成一维问题进行处理，应用非常广泛。然而自然图像的形状特征通常是杂乱的，有噪声的，提出了一种图像预处理方法，得到净化的形状图像，通过实验研究傅立叶描述子算法提取形状特征的效果。-Abstract Shape is a visual feature which contains intrinsic high-level semantics, and has a great application value in CBIR(Content-Based Image Retrieval) and IR(Image Recognition). There are many descriptors for shape feature. Fourier descriptor predigests 2-demensional image information to 1-demensional signal and be used widely. In fact, the shape of natural image is often messy and noisy. So, this paper proposes a preprocessing method which can clean the noisy shape image, and then researches and analyses the shape feature extraction with Fourier descriptor method with an experiment.
Keywords Shape, Fourier Descriptor, Feature Extraction, CBIR(Content-Based Image R
Platform: |
Size: 102400 |
Author:倪晓雷 |
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Description: 傅立叶描述子是分析和识别物体形状的重要方法之一．利用基于曲线多边形近似的连续傅立叶变换方法 计算傅立叶描述子，并通过形状的主方向消除边界起始点相位影响的方法，定义了新的具有旋转、平移和尺度不变 性的归一化傅立叶描述子．与使用离散傅立叶变换和模归一化的传统傅立叶描述子相比，新的归一化傅立叶描述 子同时保留了模与相位特性，因此能够更好地识别物体的形状．实验表明这种新的归一化傅立叶描述子比传统的 傅立叶描述子能够更加高效、准确地识别物体的形状．-Fourier descriptor is to analyze and identify the important objects in the shape of one of the methods. The use of polygon-based curve near
Continuous Fourier transform method like Fourier descriptors, and through the main direction of the shape to eliminate the border from
Phase of the influence of starting point, define a new rotation, translation and scale invariance of the normalized Fourier
Ye descriptor. With the use of discrete Fourier transform and mode normalized compared with the traditional Fourier descriptors, the new
Normalized Fourier descriptors while maintaining the mold and phase characteristics, we are better able to identify the object shape
Like. Experiments show that the new normalized Fourier descriptors than the traditional Fourier descriptors to be more high-
Efficiency, accurately identify the shape of an object. Platform: |
Size: 6646784 |
Author:林传峰 |
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Description: 计算傅立叶描述算子，用C语言写的，包含cpp和h文件。-Calculation Fourier descriptor operator, written in C, including CPP and h files. Platform: |
Size: 3072 |
Author:xiaoling |
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Description: 傅里叶描述子用来描述和识别图像中有边缘的物体形状，本程序基于MATLAB，测试可用-Fourier descriptor is to analyze and identify the important objects in the shape of one of the methods. The use of polygon-based curve near Continuous Fourier transform method like Fourier descriptors, and through the main direction of the shape to eliminate the border from Phase of the influence of starting point, define a new rotation, translation and scale invariance of the normalized Fourier Ye descriptor. Platform: |
Size: 3072 |
Author:杨占 |
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Search - descriptors fourier