DCT & DWT based watermarking scheme for medical information security
| Autor: | Kafi Redouane, Kahlessenane Fares, Euschi Salah, Amine Khaldi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Scheme (programming language)
Computer science Data_MISCELLANEOUS 0206 medical engineering ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Biomedical Engineering Health Informatics Medical information 02 engineering and technology Image (mathematics) 03 medical and health sciences 0302 clinical medicine Schur decomposition Robustness (computer science) Discrete cosine transform Computer vision Digital watermarking computer.programming_language business.industry Watermark 020601 biomedical engineering Signal Processing Artificial intelligence business computer 030217 neurology & neurosurgery |
| Zdroj: | Biomedical Signal Processing and Control. 66:102403 |
| ISSN: | 1746-8094 |
| DOI: | 10.1016/j.bspc.2020.102403 |
| Popis: | In order to secure the exchanged medical images in telemedicine, we propose in this work two blind watermarking approaches for the medical images protection. In the first scheme a combination of DCT and Schur decomposition is performed. In order to obtain a good compromise between robustness and imperceptibility, the integration is performed in the medium frequencies of the image. In the second scheme, the combination of DWT and Schur decomposition provide a more robust watermark distribution. Imperceptibility and robustness experimental results shows that the proposed methods maintain a high quality watermarked images and are very robust against several conventional attacks. These schemes allow the protection of the patient's information and thus ensure the confidentiality of personal data. |
| Databáze: | OpenAIRE |
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