Volume 13 Number 4 (Apr. 2018)
Home > Archive > 2018 > Volume 13 Number 4 (Apr. 2018) >
JCP 2018 Vol.13(4): 442-449 ISSN: 1796-203X
doi: 10.17706/jcp.13.4.442-449

Improvement of SURF against Geometrical Distortions

Yongbae Kim1, Jongweon Kim2
1Creative Content Labs, Sangmyung University, 20, Hongjimun-2gil, Jongno-gu, Seoul, 03016, Korea.
2Dept. of Content & Copyright, Sangmyung University, 20, Hongjimun-2gil, Jongno-gu, Seoul, 03016, Korea.


Abstract—In this paper, we propose an improvement of SURF algorithm for geometrical distortions. There are many images in the social networks and World Wide Web. Content creators are specially interested in the virtual reality contents such as 360 degree images and videos. Feature extraction is useful to stitch the panoramic images and SIFT and SURF are the most popular algorithms to extract unique features from the images. Although SIFT is most efficient algorithm for some geometrical distortions, it has a computational burden and SURF is not efficient for the geometrical distortions, though SURF has the computational advantage. We have added a pre-processor to SURF to improve geometrical robustness. The pre-processor transforms the target image into RST invariant domain. In the case of the original SURF, the number of the feature matching is decreased as long as the rotation angle is increasing. When the rotation angle is over 20 degrees, the features start to mismatch. After rotation angle of 40 degrees, there is no matched features. However, the proposed algorithm shows the almost perfect matching rate when the test image is rotated. The average of the matching rate is 97.9%.

Index Terms—360 images, feature extraction, geometrical distortion, SIFT, SURF, virtual reality.

[PDF]

Cite: Yongbae Kim, Jongweon Kim, "Improvement of SURF against Geometrical Distortions," Journal of Computers vol. 13, no. 4, pp. 442-449, 2018.

General Information

ISSN: 1796-203X
Frequency: Monthly (2006-2014); Bimonthly (Since 2015)
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO, DOAJ, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jcp@iap.org
  • Sep 26, 2017 News!

    Papers published in JCP Volume 12 have all been indexed by DBLP   [Click]

  • Sep 02, 2016 News!

    Vol 11, No 3 has been indexed by EI (Inspec)   [Click]

  • Sep 22, 2017 News!

    Vol 13, No 6 has been published with online version 11 papers are published in this issue after peer review   [Click]

  • Aug 14, 2017 News!

    Vol 13, No 5 has been published with online version   [Click]

  • Jun 21, 2017 News!

    Vol 13, No 4 has been published with online version   [Click]

  • Read more>>