Sekharjit Datta

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With rapid growth in computer network and information technology, a large number of copyrighted works now exist digitally as a computer files, and electronic publishing is becoming more popular. These improvements in computer technology increase the problems associated with copyright enforcement and thus future developments of networked multimedia systems(More)
The security and authenticity of biomedical data are of the subjects of legal requirements. This paper proposes the use of digital watermarking to improve the security of biomedical signals transmitted over a wired or wireless network. The proposed scheme embeds a watermark sequence generated for each patient using the integer wavelet transform. Since for(More)
Advances in wireless sensor network technologies have realized new opportunities to form Wireless Body Area Network (WBAN) for pervasive remote monitoring of the patients' vital signs at hospital and remote homecare environment, thereby improving healthcare system. The wireless physiological body sensor node is capable of sensing and processing the vital(More)
As electroencephalography (EEG) signals contain sensitive personal health information, it is generally a legal requirement to prevent their unauthorized access. For example, the HIPAA in the US requires that access to personal health information is limited to properly authorized individuals. In this paper, a chaos-based encryption method is proposed to(More)
Ancient Indian and Chinese medicine both use non-invasive wrist pulse signals for health diagnosis of patients. In this paper, data obtained from a number of patients have been used to categorize the types of pulse signals that are found in both normal and abnormal health conditions. Features were extracted from the pulse signals using both frequency and(More)