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A novel ultra-wideband radar sensor system for simultaneous detection of falls and vital signs is presented. The suggested system is able to deal with real-life conditions, such as lack of real-fall data for training, body movements, several people present, and privacy issues. Micro-Doppler features, extracted from time-frequency spectrograms, are used to classify human actions as related to normal...
The vital signs monitoring is very useful to detect medical diseases. The paper presents an open, flexible, wireless and portable platform for monitoring vital signs in the healthcare scenarios, both indoor and outdoor. The platform has been designed in order to overcome the limitations of well-known technologies for mobile architectures, such as the battery lifetime and the lack of the open source...
This paper presents a multi-feature approach for detection of key postures by using a MESA SR4000 time-offlight 3D sensor managed by a low-power embedded PC. Acquired data were pre-processed by using a well-established framework including self-calibration, segmentation and tracking functionalities. To accommodate different application scenarios, hierarchical coarse-to-fine features were extracted...
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