A low noise stenography method for medical images with QR encoding of patient information

Alberto Patiño-Vanegas; Sonia H. Contreras-Ortiz; Juan C. Martinez-Santos

doi:10.1117/12.2254568

13 March 2017 A low noise stenography method for medical images with QR encoding of patient information

Alberto Patiño-Vanegas, Sonia H. Contreras-Ortiz, Juan C. Martinez-Santos

Proceedings Volume 10138, Medical Imaging 2017: Imaging Informatics for Healthcare, Research, and Applications; 101380H (2017) https://doi.org/10.1117/12.2254568
Event: SPIE Medical Imaging, 2017, Orlando, Florida, United States

Abstract

This paper proposes an approach to facilitate the process of individualization of patients from their medical images, without compromising the inherent confidentiality of medical data. The identification of a patient from a medical image is not often the goal of security methods applied to image records. Usually, any identification data is removed from shared records, and security features are applied to determine ownership. We propose a method for embedding a QR-code containing information that can be used to individualize a patient. This is done so that the image to be shared does not differ significantly from the original image. The QR-code is distributed in the image by changing several pixels according to a threshold value based on the average value of adjacent pixels surrounding the point of interest. The results show that the code can be embedded and later fully recovered with minimal changes in the UIQI index - less than 0.1% of different.

Conference Presentation

Citation Download Citation

Alberto Patiño-Vanegas, Sonia H. Contreras-Ortiz, and Juan C. Martinez-Santos "A low noise stenography method for medical images with QR encoding of patient information", Proc. SPIE 10138, Medical Imaging 2017: Imaging Informatics for Healthcare, Research, and Applications, 101380H (13 March 2017); https://doi.org/10.1117/12.2254568

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