Embedding in medical images: an efficient scheme for authentication and tamper localization

Considering the existing medical image watermarking algorithms, a single function often has limitations, and a multipurpose watermarking algorithm for medical images is proposed. First, medical images are divided into regions of interest (ROIs) and regions of noninterest (RONIs). Then, the authentication watermark produced for each subblock of the ROI is embedded into the corresponding mapping subblock. The visible watermark is embedded into the RONI, and, finally, the watermark information and constructed authentication information in each subblock of the ROI are embedded into the corresponding RONI subblock. Simulation results show that the embedded visible watermark can protect and facilitate medical image management. In addition, the proposed algorithm has strong robustness and very good visual quality. It can simultaneously realize copyright protection and content authentication and also has high tamper localization capability.

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Tamper localization of the medical images based on fragile watermarking

2017 25th Signal Processing and Communications Applications Conference (SIU) ◽

10.1109/siu.2017.7960481 ◽

2017 ◽

Author(s):

Arda Ustubioglu ◽

Guzin Ulutas ◽

Beste Ustubioglu

Keyword(s):

Medical Images ◽

Fragile Watermarking ◽

Tamper Localization

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Reversible data hiding with contrast enhancement and tamper localization for medical images

Information Sciences ◽

10.1016/j.ins.2017.01.009 ◽

2017 ◽

Vol 385-386 ◽

pp. 250-265 ◽

Cited By ~ 35

Author(s):

Guangyong Gao ◽

Xiangdong Wan ◽

Shimao Yao ◽

Zongmin Cui ◽

Caixue Zhou ◽

...

Keyword(s):

Contrast Enhancement ◽

Data Hiding ◽

Reversible Data Hiding ◽

Medical Images ◽

Tamper Localization

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Editor’s Pick: Regulatory and Ethical Issues in the New Era of Radiomics and Radiogenomics

EMJ Radiology ◽

10.33590/emjradiol/19-00165 ◽

2020 ◽

Author(s):

Filippo Pesapane

Keyword(s):

Ethical Issues ◽

Medical Images ◽

Practical Significance ◽

Innovative Technology ◽

New Era ◽

Naked Eye ◽

Disease Characteristics ◽

The Future ◽

Using Data ◽

The Relationship

Radiomics is a science that investigates a large number of features from medical images using data-characterisation algorithms, with the aim to analyse disease characteristics that are indistinguishable to the naked eye. Radiogenomics attempts to establish and examine the relationship between tumour genomic characteristics and their radiologic appearance. Although there is certainly a lot to learn from these relationships, one could ask the question: what is the practical significance of radiogenomic discoveries? This increasing interest in such applications inevitably raises numerous legal and ethical questions. In an environment such as the technology field, which changes quickly and unpredictably, regulations need to be timely in order to be relevant. In this paper, issues that must be solved to make the future applications of this innovative technology safe and useful are analysed.

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Designing an Energy Efficient Scheme in MANET using Reconfigurable Directional (RDA) Algorithm

International Journal of Advanced Research in Computer Science and Software Engineering ◽

10.23956/ijarcsse.v8i4.637 ◽

2018 ◽

Vol 8 (4) ◽

pp. 92

Author(s):

Rinkle Chhabra ◽

Anuradha Saini

Keyword(s):

Ad Hoc ◽

Energy Savings ◽

Setup Time ◽

Directional Antennas ◽

Directional Antenna ◽

Efficient Scheme ◽

Primary Focus ◽

Hoc Networks ◽

Energy Gains ◽

Insight Into

Mobile Ad Hoc Networks (MANET) are autonomous, infrastructure less and self-configuring networks. MANETs has gained lots of popularity due to on the fly deployment i.e. small network setup time and ability to provide communication in obstreperous terrains. Major challenges in MANETs include routing, energy efficiency, network topology control, security etc. Primary focus in this article is to provide method and algorithm to ensure significant energy savings using re-configurable directional antennas. Significant energy gains can be clinched using directional antenna. Key challenges while using directional antenna are to find destination location, antenna focusing, signal power and distance calculations. Re-configurable directional antenna can ensure significant energy gains if used intelligently. This article provides a brief insight into improved energy savings using re-configurable directional antennas and an associated algorithm

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