Histogram-based perceptual hash algorithm for synthetic aperture radar image segmentation

Jian Ji; Linyi Han; Jiajie Wei; Xiaojia Lü; XIaoyuan Li

doi:10.1117/1.JEI.27.3.033044

28 June 2018 Histogram-based perceptual hash algorithm for synthetic aperture radar image segmentation

Jian Ji, Linyi Han, Jiajie Wei, Xiaojia Lü, XIaoyuan Li

Author Affiliations +

Journal of Electronic Imaging, Vol. 27, Issue 3, 033044 (June 2018). https://doi.org/10.1117/1.JEI.27.3.033044

Abstract

To speed up the segmentation procedure and improve the segmentation quality of synthetic aperture radar (SAR) image, this paper presents an adaptive unsupervised SAR image segmentation method, which is integrated in the grayscale histogram and perceptual hash algorithm. The final clusters can be acquired self-adaptively without predefining. The two stages of the algorithm are discussed in details: histogram-based preprocessing and region merging. In preprocessing, histogram-based gray-level reduction is adopted to generate the set of initial segmented regions to address the problem of over-segmentation. When merging regions, the similarity of different regions can be obtained by comparing their different fingerprints calculated in the perceptual hash algorithm, which is the kernel of the whole SAR image segmentation method. The application of the perceptual hash algorithm for image segmentation can reduce the computational complexity and improve the efficiency of region merging. Experimental simulations and theoretical analysis are used to demonstrate the effectiveness of this algorithm.

Citation Download Citation

Jian Ji, Linyi Han, Jiajie Wei, Xiaojia Lü, and XIaoyuan Li "Histogram-based perceptual hash algorithm for synthetic aperture radar image segmentation," Journal of Electronic Imaging 27(3), 033044 (28 June 2018). https://doi.org/10.1117/1.JEI.27.3.033044

Received: 24 January 2018; Accepted: 1 June 2018; Published: 28 June 2018

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available