Medical Image Retrieval Based on Simplified Multi-Wavelet Transform and Shape Feature

Xin Rui Wang; Yun Feng Yang

doi:10.4028/www.scientific.net/AMM.513-517.2871

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 513-517Medical Image Retrieval Based on Simplified...

Medical Image Retrieval Based on Simplified Multi-Wavelet Transform and Shape Feature

Abstract:

A novel medical image retrieval method based on Simplified Multi-wavelet Transform and Shape Feature was proposed in the paper, which included coarse and fine retrieval procedure. In the procedure of the coarse retrieval, Canny operator was used to extract edges of images. Moreover, contour lines were obtained by using the method of scan lines. At last, the coarse retrieval results of the images can be accomplished by using contour lines of images. In the procedure of the fine retrieval, the simplified multi-wavelet transform was used to decompose images at first, then, only the high frequency coefficients in the vertical directions were selected as retrieval objects. And hierarchical retrieval strategy was selected to accomplish the fine retrieval. This method not only can reduce the computational complexity effectively, but also can make full use of high frequency information of original images. Experiments showed that the accuracy of the retrieved results can be ensured.

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Periodical:

Applied Mechanics and Materials (Volumes 513-517)

Pages:

2871-2875

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.513-517.2871

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Online since:

February 2014

Authors:

Xin Rui Wang*, Yun Feng Yang

Keywords:

Medical Image Retrieval, Mutual Information (MI), Simplified Multi-Wavelet Transform

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* - Corresponding Author

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