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Intensive Use of Correspondence Analysis for Large Scale Content-Based Image Retrieval

机译:大量使用对应分析进行基于内容的大规模图像检索

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In this paper, we investigate the intensive use of Correspondence Analysis (CA) for large scale content-based image retrieval. Correspondence Analysis is a useful method for analyzing textual data and we adapt it to images using the SIFT local descriptors. CA is used to reduce dimensions and to limit the number of images to be considered during the search step. An incremental algorithm for CA is proposed to deal with large databases giving exactly the same result as the standard algorithm. We also integrate the Contextual Dissimilarity Measure in our search scheme in order to improve response time and accuracy. We explore this integration in two ways: (i) off-line (the structure of image neighborhoods is corrected off-line) and (ii) on-the-fly (the structure of image neighborhoods is adapted during the search). The evaluation tests have been performed on a large image database (up to 1 million images).
机译:在本文中,我们调查了对应分析(CA)在基于内容的大规模图像检索中的大量使用。对应分析是一种用于分析文本数据的有用方法,我们使用SIFT本地描述符将其适应于图像。 CA用于减小尺寸并限制在搜索步骤中要考虑的图像数量。提出了一种用于CA的增量算法来处理大型数据库,其结果与标准算法完全相同。我们还将上下文差异度量集成到我们的搜索方案中,以提高响应时间和准确性。我们以两种方式探索这种集成:(i)离线(离线校正图像邻域的结构)和(ii)动态(在搜索过程中调整图像邻域的结构)。评估测试已在大型图像数据库(最多100万张图像)上进行。

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