Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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A Steganography for the Medical Images using Block Similarity

블록 유사도를 이용한 의료영상 스테가노그라피

  • Published : 2009.05.30
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Abstract

Recently, due to problems in terms of illegal copying of medical image and the right ownership and authentication of data, it is necessary for us to study about those problems. In this study, we propose steganography with a method of the hiding information of high-resolution in digital medical image. The proposed algorithm is one of the way that inserts secret information by protecting ROI area which is regarded as and important feature of high-resolution digital medical image. As a result, the proposed method made it possible to insert secret information of massive storage and didn't affect the imperceptibility in medical image quality based on capacity and PSNR showed the all image quality of about 33.33dB.

최근에 디지털 의료영상 정보에 대한 불법 복제, 소유권 및 데이터 인증 문제가 야기되고 있어 이에 대한 연구가 필요하다. 본 연구에서는 고해상도의 디지털 의료영상의 정보 은닉 방법으로 스테가노그라피을 제안한다. 제안된 알고리즘은 고해상도 의료영상의 특성상 중요 부분인 ROI 영역을 보호하면서 비밀 정보를 삽입하는 방법이다. 결과로 제안한 방법은 의료영상에 적용하여 삽입 용량에 따른 비가시성과 화질 열화에 크게 영향을 주지 않음을 확인하였고 전체적으로 화질 면에서 PSNR이 약 평균 33.33dB 정도를 볼 수 가 있었다.

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References

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