Share Email Print
cover

Proceedings Paper

An optimized SIFT algorithm based on color space normalization
Author(s): Tuochi Jiang; Desheng Wen; Zongxi Song; Wei Gao; Chao Shen; Feng Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The Scale Invariant Feature Transform (SIFT) algorithm has been widely used for its excellent stability in rotation, scale and affine transformation. The local SIFT descriptor has excellent accuracy and robustness. However, it is only based on gray scale ignoring the overall color information of the image resulting in poorly recognizing to the images with rich color details. We proposed an optimized method of SIFT algorithm in this paper which shows superior performance in feature extraction and matching. RGB color space normalization is used to eliminate the effects of illumination position and intensity invariant on the image. Then we proposed a novel similarity retrieval method, which used K nearest neighbor search strategy by constructing K-D tree (k-dimensional tree), to process the key points extracted from the normalized color space. The key points of RGB space are filtered and combined efficiently. Experimental results demonstrate that the performance of the optimized algorithm is obviously better than the original SIFT algorithm in matching. The average matching accuracy of test samples is 87.05%, an average increase of 18.21%.

Paper Details

Date Published: 9 August 2018
PDF: 9 pages
Proc. SPIE 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018), 1080608 (9 August 2018); doi: 10.1117/12.2503039
Show Author Affiliations
Tuochi Jiang, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Desheng Wen, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Zongxi Song, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Wei Gao, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Chao Shen, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Feng Wang, Xi'an Institute of Optics and Precision Mechanics, CAS (China)


Published in SPIE Proceedings Vol. 10806:
Tenth International Conference on Digital Image Processing (ICDIP 2018)
Xudong Jiang; Jenq-Neng Hwang, Editor(s)

© SPIE. Terms of Use
Back to Top