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Journal of Digital Imaging

, Volume 30, Issue 6, pp 695–709 | Cite as

Medical Image Tamper Detection Based on Passive Image Authentication

  • Guzin Ulutas
  • Arda Ustubioglu
  • Beste Ustubioglu
  • Vasif V. Nabiyev
  • Mustafa Ulutas
Article

Abstract

Telemedicine has gained popularity in recent years. Medical images can be transferred over the Internet to enable the telediagnosis between medical staffs and to make the patient’s history accessible to medical staff from anywhere. Therefore, integrity protection of the medical image is a serious concern due to the broadcast nature of the Internet. Some watermarking techniques are proposed to control the integrity of medical images. However, they require embedding of extra information (watermark) into image before transmission. It decreases visual quality of the medical image and can cause false diagnosis. The proposed method uses passive image authentication mechanism to detect the tampered regions on medical images. Structural texture information is obtained from the medical image by using local binary pattern rotation invariant (LBPROT) to make the keypoint extraction techniques more successful. Keypoints on the texture image are obtained with scale invariant feature transform (SIFT). Tampered regions are detected by the method by matching the keypoints. The method improves the keypoint-based passive image authentication mechanism (they do not detect tampering when the smooth region is used for covering an object) by using LBPROT before keypoint extraction because smooth regions also have texture information. Experimental results show that the method detects tampered regions on the medical images even if the forged image has undergone some attacks (Gaussian blurring/additive white Gaussian noise) or the forged regions are scaled/rotated before pasting.

Keywords

Copy move forgery Medical image security LBPROT SIFT Passive image authentication 

Notes

Compliance with Ethical Standards

Competing Interests

The authors declare that they have no conflict of interest.

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Copyright information

© Society for Imaging Informatics in Medicine 2017

Authors and Affiliations

  • Guzin Ulutas
    • 1
  • Arda Ustubioglu
    • 1
  • Beste Ustubioglu
    • 1
  • Vasif V. Nabiyev
    • 1
  • Mustafa Ulutas
    • 1
  1. 1.Computer Engineering DepartmentKaradeniz Technical UniversityTrabzonTurkey

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