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Retrieval of multimedia has become a requirement for many contemporary information systems. These systems need to provide browsing, querying, navigation, and, sometimes, composition capabilities involving various forms of media. In this survey, the authors review techniques for text, image, audio and video retrieval. They first look at indexing and retrieval techniques for text, audio, image and video. They also discuss features visual features for video retrieval such as color, texture, shape. The indexing techniques are discussed for these features. They also compare most popular techniques used for indexing and retrieval.
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