SIFT Feature Extraction Algorithm for Image in DCT Domain

Zhen Wu; Zhe Xu; Rui Nian Zhang; Shao Mei Li

doi:10.4028/www.scientific.net/AMM.347-350.2963

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 347-350SIFT Feature Extraction Algorithm for Image in DCT...

SIFT Feature Extraction Algorithm for Image in DCT Domain

Abstract:

Image feature extraction is an important technology in image matching and retrieval. For the problem of high computational complexity of spatial domain image feature extraction using the SIFT algorithm, and by studying the relationship between DCT coefficient matrix and image, the paper designed the DCT coefficients reduced matrix of image and proposed the algorithm of SIFT feature extraction in DCT domain reduced image. Experiments showed that with the low loss of accuracy in image matching and retrieval, the method proposed can significantly improve the computational efficiency of feature extraction.

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Periodical:

Applied Mechanics and Materials (Volumes 347-350)

Pages:

2963-2967

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.347-350.2963

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Online since:

August 2013

Authors:

Zhen Wu, Zhe Xu, Rui Nian Zhang, Shao Mei Li

Keywords:

DCT Coefficients Reduced Matrix, DCT Domain Reduced Image, Image Feature Extraction, SIFT Algorithm

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