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Description: 基于内容的图像检索方面的一些相关问题和方法。本文中给出了一系列图像视觉特征的提取、表达和索引方法。
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Author: doris_tintin@yahoo.com.cn |
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Description: 基于SIFT特征提取,本文提出了一种多尺度的图像检索算法,将一幅图像转化为多个特征的集合,再通过计算两幅图像特征向量间的欧氏距离进行比较得出结果进而实现图像检索功能。实验结果说明该算法具有尺度、平移、旋转不变性,可以进行良好应用。
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Author: fannting |
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Description: 基于K均值聚类的图像检索：用K均值聚类方法提取图像特征进行检索-K-means clustering- based Image Retrieval : K-means clustering method of extracting image features Search
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Size: 2091008 |
Author: 吴成玉 |
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Description: 基于内容的图像检索中的一些关键环节：特征提取：颜色直方图；纹理特征等
相似度：马氏距离，欧氏距离等
相关反馈：机器学习方法，如SVM，神经网络等
检索与分类：两个很相似的样本距离很小，虽然两个不相似的样本距离未必很大-content-based image retrieval of some of the key issues : Feature Extraction : color histogram; Texture characteristics of similarity : Mahalanobis distance, the Euclidean distance relevance feedback : machine learning methods, such as SVM. Neural network search and classification : two very similar samples from the small, although the two are similar to the samples may not be much distance
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Author: 耿上 |
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Description: 图像检索中基于元数据的特征提取方法的博士学位论文，对研究基于内容的图像检索技术的人员有益！-Image Retrieval Based on the characteristics of meta-data extraction method of a doctorate thesis on the study content-based image retrieval technology staff useful!
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Author: 田巾 |
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Description: 一种特征库可更新的相关反馈图像检索方法，写的比较详细做图像检索反馈时可以参考-a feature library can be updated relevance feedback image retrieval methods, write more detailed feedback so images can be indexed reference
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Author: 亮亮 |
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Description: 提出了一种基于兴趣点的图像检索新方法ACSM(Annular Color and Shape Moment) , 利用兴趣点的位置信息, 提取兴趣点周围局部区域的颜色矩特征和区域形状不变矩特征。ACSM算法不仅对平移、旋转具有良好的鲁棒性, 而且克服了传统颜色矩和形状不变矩没有位置信息的缺陷。实验结果表明, 由于将颜色和形状特征有机结合, ACSM算法有效提高了图像检索的准确性。-err
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Author: 焦亚民 |
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Description: 提出一种基于独立分量分析的内容特征,并用于人脸图像检索,得到一种基于内容的图像检索新方案. 该方案首先在降维空间提取出基于高阶统计特性的主独立内容特征(PICF) ,应用提取的PICF 特征进行有效的人脸图像描述. 为确保计算有效性和检索正确率,运用可消除独立特征顺序不确定性的基于PICF 的检索方法,并在具备不同亮度、尺度、姿势和图像描述变化的RL 脸谱数据库中完成了人脸图像检索实. 计算机仿真结果验证了所提出方法的有效. 最佳检索率为100 ％ ,平均查准率达95. 14 ％P千次.-err
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Author: 焦亚民 |
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Description: 针对目前的基于特征的图像检索中没有有效地结合图像中对象空间信息的问题，提
出了一种新的融合了颜色、空间和纹理特征的图像特征提取及匹配方法。为了减少时间
间复杂度，首先通过基于普通颜色直方图的检索得到初始图像集合，然后根据提出的结合空间、纹理特征加权度量对初始图像集合再进行检索，从而得到最后更符合要求的相似图象-View of the current feature-based image retrieval is not effective integration of image information of objects in space, we propose a new blend of colors, space and texture features of image feature extraction and matching method. Time interval in order to reduce complexity, first of all, the general color histogram-based retrieval has been the initial image set, and then on the basis of the combination of space, texture characteristics of the weighted measure of the initial image and then search the collection, thus more in line with the requirements of the final similarity Image
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Author: 丁丁 |
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Description: 图像检索的的基于语义的图像检索 纹理图像检索 图像的特征提取方法-Image Retrieval of semantic-based image retrieval image retrieval image texture feature extraction methods
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Author: 小五子 |
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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
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Author: 倪晓雷 |
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Description: 近年来，随着互联网的高速发展，网上的多媒体信息也急剧增加，这些多媒体信息以图像为主。如何从浩瀚的图像数据库中快速、准确地找出所需要的图像，己成为一个备受关注的研究课题。有效地组织、管理和检索大规模的图像数据成为迫切需要解决的问题。于是基于内容的图像检索(Content-Based Image Retrieval: CBIR)作为一个崭新的研究领域出现了。
本课题拟研究、分析彩色图像红、绿、蓝三基色直方图的生成、特征提取和相似度等问题，应用图像的颜色信息—三基色直方图对图像进行检索。针对基于颜色的图像检索，本文采用应用广泛的RGB颜色空间来表示图像的颜色特征，对颜色分量进行等间隔量化并形成特征矢量并对特征矢量进行归一化处理，采用图像均匀分块的方法引入图像中色彩所处的位置信息，用距离度量函数进行图像的相似性匹配。在此基础上实现了基于三基色直方图算法的检索系统。
本文的研究和实践对于促进基于内容的图像数据库检索技术的应用具有一定的参考价值和实践意义。-With the rapid development of Internet, the multimedia information is booming. All this information is mostly images. Effective recognizing, management and searching all these images have been an emergent problem. This has led the rise of a new research and development field: Content-Based Image Retrieval (CBIR).
The topics to research, analysis color images red, green and blue color histogram generation, feature extraction and the similarity of the issues, application of the color image- trichromatic histogram of the image retrieval. Based on the color against the static image retrieval, this paper application of a wide range of RGB color space to indicate the color image features, the color components, such as spacing and quantitative characteristics of a feature vector and a normalization of vector processing, using uniform image block the introduction of the method in which the color image Location information, and distance measuring function similar to the image of the match. On
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Author: qichao |
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Description: 多媒体技术的发展和视觉信息的飞速膨胀迫切需要对视觉信息资源的有效管理和检索。由此，基于内容的图像和视频检索技术得到了越来越多的重视，成为了多媒体信息检索和图像处理领域中的重要研究方向。CBIR技术将对大规模图像信息的管理和访问提供有力支持。
本文这种介绍了内容图像检索的灰度特征实现方法，具有理论意义和实际应用价值。针对基于内容图像检索技术进行了研究，介绍了其研究现状和关键技术，讨论了其技术瓶颈和发展趋势。共生矩阵法，是对图像的所有像元进行统计调查，以便描述其灰度分布的一种方法。分析了这种基于广义图像灰度共生矩阵的图像检索方法，该方法首先将原图像作平滑处理得到平滑图像，然后将原图像和平滑图像组合得到广义图像灰度共生矩阵，提取该矩阵的统计特征量，最后将该统计量组成归一化向量用以检索。
实验结果表明，本方法的效果要优于单纯的灰度共生矩阵法。在对相似图像检索时，该算法与基于共生矩阵的经典算法相当，在面临同一图像大小显著改变或发生旋转的情况下，该算法明显优于经典算法。相比较而言，该算法提高了检索的有效性。
-The development of multimedia technology and the expansion of visual information，which cries for the effective management and retrieval methods of visual information. Thus, the image and video searching technology based on content is gaining more and more attention to become a multimedia information retrieval and image processing in the field of important research direction. The technology of CBIR provides effective supports for the management and access of extensive image information.
This paper introduced the content of the image retrieval method characteristics of gray, with theoretical and practical value. This paper does an extensive and in-depth study of technology based on content image retrieval to, presenting their research status and key technologies, discussing its development trends and technological bottlenecks. Co-occurrence matrix of all the pixel image survey has been conducted in order to describe a method of distribution of gray. This paper analyses this broad-based
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Author: qichao |
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Description: 提出了一种基于颜色和纹理的新的图像检索方法。该方法在HSV 颜色空间量化过程中,采用一种基于线
性隶属度的模糊量化方法,使量化结果更接近于人类感知 在提取分块主色的基础上引入一种颜色相邻矩阵,用于描
述颜色的相对空间分布情况,以提高对图像变形的鲁棒性 还加入图像的纹理信息,最后结合这些颜色和纹理特征进
行复合图像检索。实验表明,该方法能有效提高图像检索精度。- A new picture ret rieval algorithm based on color and texture was presented. In the process of scaling color in
HSV color space ,the new algorithm used a scaling method based on fuzzy scaling to bet ter meet human’s sensation.
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Author: 张三风 |
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Description: 在基于内容的图像检索中,图像的标注字能够缩小图像的高级语义和低级视觉内容
之间的差距,并方便检索. 但手工标注费时费力且结果具有主观不一致性,而图像的自动语义标注
能够将图像的视觉特征转化为图像的标注字信息,为用户的使用带来了极大的方便. 本文提出了一
种基于实例的图像自动语义标注方法.-In content2based image retrieval, annotations of image can not only reduce the gap between high2
grade semantics and low2grade visual content, but is also convenient for retrieval. Aswe all know, manual2annota2
tion is time2consuming, strength2consuming, and the annotation resultsmay be subjectively different, while the au2
tomatic image annotation can transform the visual features into annotations. This benefits users a lot. In this paper,
we p ropose an instance2based method for automatic image annotation
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Author: 张三风 |
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Description: 基于形状特征的光学图像检索方法研究.kdh-Shape feature based image retrieval method of optical. Kdh
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Author: wuyan |
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Description: 针对医学图像数据库,提出一种新的基于纹理和形状的图像检索方法。非下采样Contourlet变换具有多尺度多分辨率
分析和平移不变性的特点,用来提取纹理特征。Zernike矩作为一种基于区域的形状描述子,具有良好的旋转不变性,用来提取
形状特征. 然后综合两种特征。对CT图像数据库进行检索实验,实验结果表明,该方法具有良好的检索性能,并具有平移、尺
度、旋转不变性。-Aiming atmedical image database, a novelmedical image retrieval algorithm based on texture and shape
information is p roposed. The nonsubsamp led Contourlet transform p rovides a flexible multi2scale, multi2direction and
shift2invariant image rep resentation. It is used for texture feature extraction. As a region2based shape descrip tor,
Zernike moments have good rotation invariance. It is used to extract shape feature. Then, the two features are inte2
grated into image retrieval. A CT image database was retrieved using thismethod. Experimental results show that the
new method has good retrieval performance and the p roperties of translation, scaling and rotation invariance.
Key words: nonsubsamp led Contourlet transform Zernike moment texture extraction shape extraction
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Author: ll |
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Description: 一个基于Gabor滤波器组的多特征融合的图像检索算法（CBIR based on Multi-Features Combining Multi-parameters from Gabor Filter-bank, 简称multi法），融合了基于Gabor 小波系数的标准方差，峰态，能量，平滑度和一致性度量五个特征量度，实验表明，该算法是一种更加有效的图像检索方法。-we propose a CBIR algorithm based on Multi-Features Combining Multi-parameters from Gabor Filter-bank(called multi algorithm for short), which use Gabor filter banks and combine five features including standard deviation, kurtosis, energy, smoothness and uniformity together. The results of experiments show that this algorithm is a more effective method used for image retrieval.
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Author: super |
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Description: 毕业设计，基于内容的图像检索，支持的检索特征包括 sift,颜色直方图，灰度矩阵，HU不变矩，边缘方向直方图，检索方法使用K-means和K-D树两种，需要OPENCV支持，运行时请先选定一个文件夹来生成特征库，特征库用access数据库保存，只支持JPG文件-Graduate design, content-based image retrieval, search features, including support sift, color histogram, gray matrix, HU moment invariants, edge direction histogram, retrieval method using the K-means and KD trees are two kinds of needs OPENCV support Please select a runtime folder to generate the feature library, feature library with access database save, only supports JPG files
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Author: 平天羽 |
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Description: 基于局部累积直方图和纹理特征的图像检索方法-The cumulative histogram and texture based on local features of image retrieval methods
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Author: qq |
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