A Survey on Security in Medical Image Communication
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paper_title: Compression of color medical images in gastrointestinal endoscopy: a review.

paper_content:

This paper reviews the state of medical color digital imaging with respect to image compression. Only recently has the creation and storage of color medical images become technically and economically feasible. This has allowed medical images to become a part of an electronic medical record, to be used in telemedicine, or to be used for medical education. The Internet has become an important medium for the dissemination of medical images, whether through file transferring or through the World Wide Web. There is a growing need to evaluate the degree and types of image compression that are clinically acceptable (either for diagnostic or archival purposes) for different specialties. The focus will be on gastrointestinal endoscopic images, although work in other medical specialties will be mentioned.
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paper_title: Reversible Watermarking: Current Status and Key Issues

paper_content:

Over the past few years a number of research papers about reversible watermarks has been produced. Reversible watermarking is a novel category of watermarking schemes. It not only can strengthen the ownership of the original media but also can completely recover the original media from the watermarked media. This feature is suitable for some important media, such as medical and military images, because these kinds of media do not allow any losses. The aim of this paper is to define the purpose of reversible watermarking, reflecting recent progress, and provide some research issues for the future.
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paper_title: Medical Image Integrity Control Combining Digital Signature and Lossless Watermarking

paper_content:

Enforcing protection of medical content becomes a major issue of computer security. Since medical contents are more and more widely distributed, it is necessary to develop security mechanism to guarantee their confidentiality, integrity and traceability in an autonomous way. In this context, watermarking has been recently proposed as a complementary mechanism for medical data protection. In this paper, we focus on the verification of medical image integrity through the combination of digital signatures with such a technology, and especially with Reversible Watermarking (RW). RW schemes have been proposed for images of sensitive content for which any modification may affect their interpretation. Whence, we compare several recent RW schemes and discuss their potential use in the framework of an integrity control process in application to different sets of medical images issued from three distinct modalities: Magnetic Resonance Images, Positron Emission Tomography and Ultrasound Imaging. Experimental results with respect to two aspects including data hiding capacity and image quality preservation, show different limitations which depend on the watermark approach but also on image modality specificities.
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Title: A Survey on Security in Medical Image Communication

Section 1: INTRODUCTION
Description 1: This section introduces the security concepts vital to medical image communication and discusses traditional methods and their limitations.

Section 2: AUTHENTICATION VERIFICATION BY USING LOSSLESS WATERMARKING
Description 2: This section explains how cryptographic hash functions and digital signatures are used to ensure strict authentication in medical image communication.

Section 3: CONFIDENTIALITY VERIFICATION USING PUBLIC KEY CRYPTOGRAPHY
Description 3: This section describes the RSA algorithm and how public-key cryptography enhances both confidentiality and authentication for medical image security.

Section 4: IMPORTANCE OF COMPRESSION IN MEDICAL IMAGE TRANSMISSION
Description 4: This section highlights the need for compressing medical images before embedding digital signatures and watermarks, emphasizing JPEG2000 as a beneficial standard.

Section 5: REVERSIBLE WATERMARKING OF MEDICAL IMAGE
Description 5: This section provides an overview of lossless watermarking techniques suitable for sensitive media like medical images, focusing on their robust and imperceptible properties.

Section 6: COMPARATIVE RESULTS
Description 6: This section compares the performance of various reversible watermarking algorithms using different imaging modalities, capacity rates, and Peak Signal to Noise Ratio (PSNR) values.

Section 7: CONCLUSIONS
Description 7: This section summarizes the importance of reversible watermarking for secure medical image communication and draws conclusions from the comparative analysis.