| 基于压缩域显著点的图像检索方法 |
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| 引用本文： | 张问银,聂真理.基于压缩域显著点的图像检索方法[J].计算机应用,2005,25(10):2354-2355. |
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| 作者姓名： | 张问银 聂真理 |
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| 作者单位： | 临沂师范学院,信息学院,山东,临沂,276005;临沂师范学院,信息学院,山东,临沂,276005 |
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| 基金项目： | 国家自然科学基金资助项目（60373113） |
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| 摘 要： | 给出了基于DCT压缩域显著点的快速图像检索方法，该方法直接利用少量DCT非零系数快速计算图像显著点，不需要完全解压缩，降低了计算复杂度，并且具有较强的鲁棒性。实验结果表明，基于显著点提取的图像特征表征能力强，适于图像检索。
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| 关 键 词： | 压缩域图像检索 显著点 离散余弦变换 |
| 文章编号： | 1001-9081（2005）10-2354-02 |
| 收稿时间： | 2005-04-11 |
| 修稿时间： | 2005-04-11 |
Image retrieval based on salient points in compressed domain |
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| ZHANG Wen-Yin,NIE Zhen-li.Image retrieval based on salient points in compressed domain[J].journal of Computer Applications,2005,25(10):2354-2355. |
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| Authors: | ZHANG Wen-Yin NIE Zhen-li |
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| Affiliation: | Department of Information, Shandong Linyin Normal University, Linyin Shandong 276005, China |
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| Abstract: | Compressed-domain image analysis and processing has been an active area in the fields of multimedia research.A fast image retrieval method based on salient points from DCT(Discrete Cosine Transform) compressed domain was presented in this paper,which direct computes the robust salient points from none-zero DCT coefficients without full decompression,so that a lot of computational cost was saved.Experimental results show that the image features obtained based on salient points are suited for image retrieval because of their powerful abilities to characterize the image. |
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| Keywords: | compressed domain image retrieval salient point DCT(Discrete Cosine Transform) |
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