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At least 937 records · Page 52Linked to original sources
PubMed2006

Artificial fingerprint recognition by using optical coherence tomography with autocorrelation analysis.

Fingerprint recognition is one of the most widely used methods of biometrics. This method relies on the surface topography of a finger and, thus, is potentially vulnerable for spoofing by artificial dummies with embedded fingerprints. In this study, we applied the optical coherence tomography (OCT) technique to distinguish artificial materials commonly used for spoofing fingerprint scanning systems from the real skin. Several artificial fingerprint dummies made from household cement and liquid silicone rubber were prepared and tested using a commercial fingerprint reader and an OCT system. While the artificial fingerprints easily spoofed the commercial fingerprint reader, OCT images revealed the presence of them at all times. We also demonstrated that an autocorrelation analysis of the OCT images could be potentially used in automatic recognition systems.

Algorithms↗
PubMedDate not supplied

DICOM: key concepts--part II.

The objective of these two installments of IT World was to give a general overview of DICOM and to take a look at different parts of the standard to get a sense of its main themes. We found that the standard provides a common reference for all developers but does not impose a single type of implementation. This allows for innovation. The standard is also built for flexibility, able to adapt to new modalities that have a need to communicate. The speedy acceptance of DICOM by the medical imaging industry is opening new possibilities for healthcare organizations to increase the quality while decreasing the cost of patient care. All of the DICOM networked supporting medical equipment as well as the organization's computer systems made by multiple original equipment manufacturers and located at one site or many sites can communicate by means of DICOM. This gives us the opportunity for medical images to be captured and communicated quicker. The result enables physicians to make diagnoses and treatment decisions sooner. It's all good stuff and even more reason why we should endeavor to understand the basics of DICOM. DICOM is here to stay!

Computer Communication Networks↗
PubMed2006

[Design and development of a secure DICOM-Network Attached Server].

It is not easy to connect a Web-based server with an existing DICOM server, and using a Web-based server on the Internet has risks. In this study, we designed and developed a secure DICOM-Network Attached Server (DICOM-NAS) through which the DICOM server in a hospital LAN was connected to the Internet. After receiving a client's image export request, the DICOM-NAS sent it to the DICOM server using the DICOM protocol. The server then provided DICOM images to the DICOM-NAS, which transferred them to the client, using HTTP. The DICOM-NAS plays an important role between the DICOM protocol and HTTP, and stores the requested images only temporarily. The DICOM server keeps all of the original DICOM images. If an unauthorized user attempts to access the DICOM-NAS, medical images cannot be accessed because images are not stored in the DICOM-NAS. Furthermore, the DICOM-NAS has features related to reporting and MPR. Therefore, the DICOM-NAS does not require a large storage capacity, but can greatly improve information security.

CD-ROM↗
PubMed1997

A holistic approach to network system security.

Networks and information systems change continuously, so it is important to create a security process that adapts to change. Here's how to ensure effective network security through a process of assessing, implementing, monitoring, and identifying.

Computer Communication Networks↗
PubMed2000

Onconet: a secure infrastructure to improve cancer patients' care.

The shared care paradigm is the current response to the crisis of industrial countries' health systems. The underlying information systems have to meet the shared care paradigm of communication and co-operation between all the partners involved in. This communication and co-operation must be provided in a secure way. The paper presents the required security infrastructure which has been analysed, specified, and developed within the TrustHealth projects funded by the European Commission. Meeting the challenges of the TrustHealth-2 project for large scale implementations of secure real applications, the ONCONET has been established in the German federal state of Saxony-Anhalt facilitating the shared care of cancer patients. Both security infrastructure and application functionalities are demonstrated in some detail.

Computer Security↗
PubMed2000

Anonymous statistical methods versus cryptographic methods in epidemiology.

Sensitive data are most often indirectly identifiable and so need to be rendered anonymous in order to ensure privacy. Statistical methods to provide anonymity require data perturbation and so generate data processing difficulties. Encryption methods, while preserving confidentiality, do not require data modification.

Computer Security↗
PubMed2001

HIPAA compliance readiness assessment: a case study.

Centura Health, a faith-based, not-for-profit IDS headquartered in Denver, Colorado, recently undertook a rapid assessment to determine its readiness to comply with the standards mandated by the Health Insurance Portability and Accountability Act (HIPAA) of 1996. The assessment process consisted of a business-impact assessment, compilation of results, a gap analysis, and a preliminary business case. The business-impact assessment involved a series of interviews. For the business case, results of the business-impact assessment were compared with the related HIPAA standard to determine the current level of compliance and develop an action plan, for approval by the project steering committee, to correct deficiencies. The HIPAA readiness assessment uncovered numerous areas in which Centura needed to implement changes, particularly with respect to ensuring the security and privacy of patients' paper records.

Colorado↗