@misc{oai:repo.qst.go.jp:00067894,
 author = {Ando, Yutaka and Nishio, Masato and Tsukamoto, Nobuhiro and Fujii, Hirofumi and Kawaguchi, Osamu and Kitamura, Masayuki and 安藤 裕 and 川口 修},
 month = {Sep},
 note = {We developed the watermark method to identify the patient-ID and institution-ID. The image processing modified the watermark information and we recovered the watermark by the error correction methods. We used the BIT-swapping method for embedding water-mark. After image processing, the detection ratio of the watermark was decreased. To correct the patient-ID and institution-ID, we used three type of methods, (1)Bose-Chandhuri-Hocquenghem code, (2)Majority correction method and (3)scramble location method. Once the detection ratio of watermark was decreased to 60%, we could recovery the watermark information. The peak signal to noise ratio was 39 dB at LSB-swapping. We think that these watermarking methods are suitable to the medical images., EuroPACS-MIR 2004},
 title = {Digital Watermark application for medical images - Improvement of the security by using demographic watermarked patient-ID and institution-ID},
 year = {2004}
}