• Progress in Medical Physics
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• v.17 no.2
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• pp.77-82
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• 2006

The image display is an Important component of PACS and of medical digital imaging chain. Displayed image qualify is affected by the physical characteristics of display device, appropriate clinical settings and calibrations, and ambient lighting conditions. The performance of display systems is continuously degraded over time due to luminance deterioration and changes of clinical setting parameters. A routine QC is recommended because the performance of display systems is continuously degraded over time. Ten flat panel monochrome LCD display devices were included in the evaluation of the QC effect. The effect of QC on primary class LCD medical display devices for selected QC tests was evaluated by comparing the performances, luminance response, luminance dependencies, display resolution and display chromaticity in this study, of before and after the calibration procedures. The effects of the QC are significant to luminance response and luminance spatial dependencies test and the other side, are slight to the display resolution and display chromaticity test. A routine QC of display device is essential for the consistency of medical image display and presentation. The study of the QC effects of display devices will play an important role in practical QC procedures of display devices.

• Journal of Internet Computing and Services
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• v.20 no.5
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• pp.37-47
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• 2019

The purpose of this paper is to construct a system that matches the patient's image disease information with the medical image viewer in providing the medical image information to the medical staff. Currently, medical image information systems that are commercialized mostly provide only one image viewer with various image information of diseases or use incompatible exclusive viewers. For this reason, we designed and implemented a medical image information viewer matching system that integrates and provides specialized viewers that can be selected by diseases' image information. That is, it is a system to match and view medical image viewers based on disease information extracted from tag information stored as the metadata in DICOM file, which is medical image information standard, for disease-specific viewer matching. We analyzed the execution performances through our retrieval service of medical image information from our implementation system, and showed compatibility and control with various viewers.

• Proceedings of the Optical Society of Korea Conference
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• 2000.02a
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• pp.294-295
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• 2000

3차원 영상은 정보전달의 효과 면에서 기존의 어떠한 디스플레이보다 월등한 것으로 평가되고 있으며, 입체 TV/영화, 게임, 의료, 관광, 전시, 회의 등의 여러 분야에서 다양하게 응용되리라 기대된다. 이에 따라 3차원 영상을 구현하기 위한 여러 방법들이 활발히 연구되고 있다. 홀로그래피 방법은 이론적으로 완전한 입체 영상을 구현할 수 있으나, 광원으로 레이저를 사용해야 하는 등 현재로서는 해결해야 할 문제들이 많다. 양안 시차를 이용한 stereoscopy 방법은 multi-view 방식이 꾸준히 연구되고 있지만, 시점의 위치가 고정되고 눈의 피로도가 증가하는 단점이 있다. 본 논문에서는 최근 주목받고 있는 IP(Integral Photography) 방법을 이용한 3차원 동영상 디스플레이 기술에 대한 기초 연구 수행 결과를 논의하고자 한다. Photographic 기술을 이용한 IP 방법은 1908년 Lippmann에 의해 처음 제안되었다. (중략)

• Proceedings of the Korean Society Of Semiconductor Equipment Technology
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• 2005.09a
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• pp.170-174
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• 2005

본 연구는 산업용과 의료용에 사용되는 비파괴 검사용 X 선 영상시스템에 이용되는 X 선을 직접 감지하는 방식의 센서를 실리콘 반도체 재료를 사용하여 개발하는데 목적이 있다. 이를 위해서 실리콘 반도체를 기본 물질로 하는 X-선 센서를 제작하고, 광범위한 영역에서 응용이 가능한 비파괴 시험용으로 제품화하기 위해 센서 어레이와 주변회로 및 구동회로 시스템과의 연관기술을 검토한다.

• Progress in Medical Physics
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• v.6 no.2
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• pp.93-101
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• 1995

In this paper, we implemented a digital medical image management and a remote monitor display system for a personal computer. The designed system can display up to a 1280${\times}$1024 image which can accomodate eight images with a 256${\times}$256${\times}$8bits. When one of these images is clicked by the mouse, the selected image can be displayed with 256${\times}$256${\times}$8bits or 1024${\times}$1024${\times}$8bits. For the selected image, we can use one of the image processing functions in this system and send it to a remote monitor for the close examinations. To search and store digital images effectively, we constructed and image database management system with the B＋TREE structure. This system can be operated in an IBM-PC 386 or higher and all the function are performed easily with a mouse to provide a user firendly environment.

• The Transactions of the Korea Information Processing Society
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• v.5 no.12
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• pp.3275-3284
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• 1998

In this paper, we deseribe a Medical Image Information System. Our system stores and manages 5 dimensional medical image data and provides the 3 dimensional medical data via the Internet. The Internet standard VR format. VRML(Virtual Reality Modeling Language) is used to represent the 3I) medical image data. The 3D images are reconstructed from medical image data which are enerated by medical imaging systems such ans CT(Computerized Tomography). MRI(Magnetic Resonance Imaging). PET(Positron Emission Tomograph), SPECT(Single Photon Emission Compated Tomography). We implemented the medical image information system shich rses a surface-based rendering method for the econstruction of 3D images from 2D medical image data. In order to reduce the size of image files to be transfered via the Internet. The system can reduce more than 50% for the triangles which represent the surfaces of the generated 3D medical images. When we compress the 3D image file, the size of the file can be redued more than 80%. The users can promptly retrieve 3D medical image data through the Internet and view the 3D medical images without a graphical acceleration card, because the images are represented in VRML. The image data are generated by various types of medical imaging systems such as CT, MRI, PET, and SPECT. Our system can display those different types of medical images in the 2D and the 3D formats. The patient information and the diagnostic information are also provided by the system. The system can be used to implement the "Tele medicaine" systems.

• Annual Conference of KIPS
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• 2000.04a
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• pp.299-302
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• 2000

의료영상의 크기가 커짐에 따라 처리해야 할 데이터량이 많아졌다. 또한 점점 더 많은 사람들이 빠른 3차원 가시화 결과를 기대한다. 하지만 이전에 제시된 많은 방법들은 실시간 응답 결과를 기대하기는 힘들다. 본 논문은 하드웨어를 이용하여 의료영상을 빠른 속도로 3차원 가시화하는 방법과 그 구현 결과에 대해 기술한다. 구현에 있어 자바를 이용함으로써 플랫폼 독립적이며 OpenGL을 기반으로 한 자바 3D API를 사용함으로써 쉽고 빠르게 3차원 가시화 결과를 디스플레이할 수 있다.

• Journal of Digital Convergence
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• v.12 no.10
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• pp.329-335
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• 2014

With the spread of mobile phones and wireless networks, medical imaging needs to be accessible outside the hospital for patients. We develop the mobile PACS platform that allows doctors or patients to store, search, query and transfer medical images for their convenience. This system is a mobile based platform that patients DICOM images can be viewed from the hospital PACS server, then they can be converted according to smart standardization. For this, we designed the platform to transfer the data between PACS, mPACS and users. Also we suggest to use DICOM transformation processing to display DICOM images in PACS server.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2006.07a
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• pp.436-436
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• 2006

• Proceedings of the Optical Society of Korea Conference
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• 2004.07a
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• pp.292-293
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• 2004