Feature extraction is the foundation of audio classification, while audio classification is a key of content based audio retrieval.
音频特征提取是音频分类的基础，而音频分类又是基于内容的音频检索的关键。
Based on image Processing and database Management System, Content Based image Retrieval (CBIR) is employed to obtain approximate results from image database, using the visual feature of images.
基于内容的图像检索技术是利用计算机图像处理和数据库管理系统，把图像的可视特征作为数据库检索的依据，对图像数据库进行近似检索。
As one of the fundamental visualized characters, texture feature is used widely in the Content-based Remote Sensing Images Retrieval.
纹理特征作为基本的视觉特征之一，在基于内容的遥感图像检索中得到了广泛的应用。
Feature based image retrieval has got more and more attention in multimedia database management and date transmission.
基于特征的图像检索在多媒体数据库管理和多媒体通信传输中得到越来越多的重视。
Using content based retrieval, design the photo feature index mechanism in a Personnel File Management System, which will offer users great convenience to inquire by feature or example.
引入基于内容的检索方法，为使用户方便的根据特征或例子进行照片查询。分析和设计了人事档案管理系统中的照片的特征索引机制。
This paper do some research on region and vision feature based image retrieval with relative feedback.
本文对基于区域语义和底层视觉特征结合的相关反馈图像检索技术进行了探讨。
The traditional float vector based image feature is the base of content based image retrieval techniques.
传统的以浮点矢量形式表示的图像特征，是基于内容的图像检索技术的基础。
Color quantization is an important method of image retrieval based on color feature.
颜色量化是基于颜色特征的图像检索的一个重要方法。
This paper researches the sub image feature fusion rules in the trademark image retrieval, and improves the sub image feature fusion rules by weighting based on the sub image reliability.
该文对商标图像检索中的子图像特征融合准则进行了研究，根据子图像可信度对子图像特征融合准则进行加权改进。
This paper puts forward the trademark image retrieval algorithm based on the subimage feature fusion, and does research on the subimage feature fusion criterions.
本文提出了基于子图像特征融合的商标图像检索算法，并对子图像特征融合准则进行了研究。
This paper proposes document image retrieval method based on the paragraph feature combining up with the local relative difference of pixel distributions.
提出一种综合利用文档图像的段落特征和局部像素分布相对差特征进行文档图像检索的方法。
Shape feature extraction and description are one of important research topics in content-based image retrieval.
形状特征提取和表示是基于内容图像检索的重要研究内容之一。
A feature based image querying and retrieval system is described in this paper.
介绍了一个基于特征的图象查询和检索系统。
Experimental results show that the retrieval method using the feature indexes can achieve much higher precision than other color-spatial based methods.
实验结果表明，用这种特征索引来检索图像，可以得利比其它基于颜色-空间方法高得多的精确度。
It presents the model and feature of content-based image retrieval system, and then discusses some methods of feature abstraction and similarity measurement based on color, texture and shape.
首先叙述了基于内容的图像检索的系统模型和特点，接着针对颜色、纹理和形状进行了概率特征提取、相似度量等的进一步具体分析讨论。
With the current technology of Information Retrieval, this paper proposes a method of automatic keyword extraction from massive data sets based on feature combination.
本文利用现有的信息检索技术，对海量数据集上自动抽取关键词问题进行了研究，给出了一个基于特征组合的关键词自动抽取方法。
Experimental results show that the method has a better retrieval result than these methods which are single feature and feature fusion based using single distance measurement.
实验结果表明，该方法比传统的基于单一特征检索方法以及运用单一距离度量的基于特征融合的检索方法有更好的检索效果。
The technologies of content-based retrieval in digital libraries are expounded and the feature selection and storage strategy of the retrieval objects is discussed in the paper.
本文论述了数字图书馆的基于内容的各种检索技术，并讨论了检索对象的特征选择和存储策略。
We put forward a set of scheme of news video retrieval, based on integrated static and motion content feature.
为此，提出基于静态内容特征和运动特征结合检索的方案。
Introduces color feature extraction and matching algorithms in content-based image retrieval, such as weighted Euclidean-distance, weighted centre distance, histogram intersection algorithm, etc.
介绍了基于内容图像检索中多种颜色的特征提取和匹配算法，以及加权欧几里得距离、中心距的加权距离、直方图交集算法等。
This paper introduces the definition of the content-based image retrieval and the visual description tools of MPEG-7, and analyzes the application of the feature descriptor.
介绍了基于内容的图像检索的定义以及MPEG - 7中的视觉描述工具，分析了特征描述符的应用。
Two effective ways has been proposed to solve the problem : one is content-based image retrieval(CBIR) technique which search target images by low-level content feature.
基于内容的图像检索技术和基于语义的图像检索技术正是解决这一问题的有效途径。
Visional feature extraction, high dimensional indexing mechanism and relevance feedback are three important issues in content-based image retrieval.
低层视觉特征提取、高维数据索引机制和相关反馈方法是面向大规模图像库基于内容检索的三个关键问题。
Color space, color quantization and color feature extraction are the main techniques in image retrieval based on color feature.
基于颜色特征的图像检索技术主要包括颜色空间的选择、颜色量化方法及颜色特征的提取。
Ordinary document image retrieval algorithms can be classed into two classes, character content (OCR) based method and image level feature based method.
提出一种综合利用文档图像的段落特征和局部像素分布相对差特征进行文档图像检索的方法。
In this dissertation, the basic principles and key techniques in the Content-based animation image retrieval technology are researched and analyzed, especially the feature extraction technology.
本文对基于内容的图像检索技术原理和关键技术做了研究和分析，特别是对图像的特征提取技术做了深入研究。
Finally it carries out image retrieval based on multi-feature by combining color component and shape component.
最后，将颜色特征分量与形状特征分量相结合来实现基于多特征的图像检索。
Finally it carries out image retrieval based on multi-feature by combining color component and shape component.
最后，将颜色特征分量与形状特征分量相结合来实现基于多特征的图像检索。
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