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Lee Hyung-Kyo;Kim Hee-Jung;Seong Tack-Young;Kwon Ki-Ryong;Lee Jong-Keuk
- Journal of Korea Multimedia Society
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- 제8권11호
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- pp.1462-1471
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- 2005
Recently, the medical image has been digitized by the development of computer science and digitization of the medical devices. There are needs for database service of the medical image and long term storage because of the construction of PACS(picture archiving and communication system) following DICOM(digital imaging communications in medicine) standards, telemedicine, and et al. However, it also caused some kinds of problems, such as illegal reproduction of medical image, proprietary rights and data authentication. In this paper, we propose the new digital watermarking technique for medical image based on public key encryption algorithm for integrity verification. It prevents illegal forgery that can be caused after transmitting medical image data remotely. The watermark is the value of bit-plane in wavelet transform of the original image for certification method of integrity verification. We proposed the embedding regions are randomly chosen considering ROI, and a digital signature is made using hash function of MD5 which input is a secret key. The experimental results show that the watermark embedded by the proposed algorithm can survive successfully in image processing operations and that the watermark's invisibility is good.
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Lee, Su-Jin;Kim, Moon-Hae
- Proceedings of the Korea Information Processing Society Conference
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- 한국정보처리학회 2001년도 추계학술발표논문집 (상)
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- pp.187-190
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- 2001
요즘 의료 분야는 환자 병력 약제 정보등과 같은 다양한 의료정보가 증가함에 따라 정보화의 요구가 대두되고, 이는 디지털 영상의 등장과 함께 컴퓨터의 도움을 받는 소프트웨어의 개발로 이어지고 있다. 본 논문에서는 이러한 추세에 맞춰, 이전에 개발된 유방암 전용 소형 감마카메라로부터 신호를 획득하여 실시간으로 디지털 영상을 만들어 내고 화면에 디스플레이하는 의료영상 표현 시스템을 설계하고 구현한다.
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