| 基于DCT压缩的JPEG图像的快速检索 |
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| 引用本文： | 卞国春,张曦煌. 基于DCT压缩的JPEG图像的快速检索[J]. 计算机应用, 2005, 25(7): 1623-1625 |
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| 作者姓名： | 卞国春 张曦煌 |
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| 作者单位： | 江南大学,信息工程学院,江苏,无锡,214122;江南大学,信息工程学院,江苏,无锡,214122 |
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| 摘 要： | 提出了一种基于离散余弦变换(DCT)压缩的JPEC图像的检索方法。该方法利用JPEG图像数据在DCT压缩域的特性，直接提取特征，而且只需要对JPEC进行部分熵解码。在加速了图像检索的过程的同时也保证了检索结果的精确性，并且具有一定的鲁棒性。
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| 关 键 词： | 图像检索 压缩域 JPEG 离散余弦变换 |
| 文章编号： | 1001-9081(2005)07-1623-03 |
Fast retrieval of JPEG images compressed by DCT |
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| BIAN Guo-chun,ZHANG Xi-huang. Fast retrieval of JPEG images compressed by DCT[J]. Journal of Computer Applications, 2005, 25(7): 1623-1625 |
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| Authors: | BIAN Guo-chun ZHANG Xi-huang |
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| Abstract: | A new method of retrieving JPEG compressed images was proposed. The features were extracted directly in DCT (Discrete Cosine Transformation) compressed domain, using the characterization of DCT. Instead of fully decompressing JPEG images, this method only needed to do partial entropy decoding. Therefore, the work of retrieving images is accelerated. Also, the efficiency of retrieving is satisfied, with certain robustness. |
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| Keywords: | image retrieval compressed domain JPEG DCT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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