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An enhanced SURF algorithm based on new interest point detection procedure and fast computation technique

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Abstract

In this paper, we propose an enhanced Speeded Up Robust Features (eSURF) algorithm to save memory and increase the operating speed. From analysis and observation of the conventional SURF algorithm, we show that a large amount of memory is inefficiently used to detect interest points and considerable operations are repeatedly performed when generating the descriptors of interest points. In the proposed algorithm, the scale-space representation (SSR) step and location (LOC) step are unified based on an efficient memory allocation technique to remove unnecessary memory. In addition, operations for Haar wavelet responses (HWRs) in horizontal and vertical directions, which occupy a major portion of computational loads, are performed by using a fast computation technique in which redundant calculations and repeated memory accesses are efficiently eliminated. Simulation results demonstrate that the proposed eSURF algorithm achieves a time savings of approximately 30 % and a memory savings of approximately 35.7 %, while the feature extraction performance of the proposed eSURF algorithm is exactly identical to that of the conventional SURF algorithm.

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Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. 2014R1A12056434).

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Authors and Affiliations

  1. Department of Aerospace Engineering, Gyeongsang National University, 501 Jinju-daero, Jinju, 52828, Republic of Korea

    Seung Hyeon Cheon

  2. Department of Electronics Engineering, Pusan National University, 2 Busandaehak-Ro 63 Beon-Gil, Pusan, 46241, Republic of Korea

    Il Kyu Eom

  3. Department of Aerospace and Software Engineering/ERI, Gyeongsang National University, 501 Jinju-daero, Jinju, 52828, Republic of Korea

    Seok Wun Ha & Yong Ho Moon

Authors
  1. Seung Hyeon Cheon
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  2. Il Kyu Eom
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  3. Seok Wun Ha
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  4. Yong Ho Moon
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Correspondence to Yong Ho Moon.

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Cheon, S.H., Eom, I.K., Ha, S.W. et al. An enhanced SURF algorithm based on new interest point detection procedure and fast computation technique. J Real-Time Image Proc 16, 1177–1187 (2019). https://doi.org/10.1007/s11554-016-0614-y

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  • DOI: https://doi.org/10.1007/s11554-016-0614-y

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