The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Background Pressure sensors have been used for sleeping posture detection, which meet privacy requirements. Most of the existing techniques for sleeping posture recognition used force-sensitive resistor (FSR) sensors. However, lower limbs cannot be recognized accurately unless thousands of sensors are deployed on the bedsheet. Method We designed a sleeping posture recognition scheme in which FSR...
In this paper, an asset positioning method is proposed. The proposed method combines Wi-Fi fingerprinting and Bluetooth low energy (BLE) trilateration positioning methods. Firstly, the Wi-Fi fingerprinting method estimates the rough position of asset in a large building, provided by mobile device user. Then, when the user approaches the asset, the exact position of asset is estimated by the BLE trilateration...
In this paper, we propose a deep convolutional neural network model for in-bed behavior recognition and bed-exit prediction. This model extracts features for training from depth images taken by depth cameras in two categories: in-bed images taken several time intervals before a patient gets out of bed, and usual in-bed activity images. The depth camera-based model features grayscale and low-resolution...
Resident applications, which autonomously awaken mobile devices, can gradually and imperceptibly drain device batteries. This paper introduces the concept of alarm similarity into wakeup management for mobile systems in connected standby. First, we define hardware similarity to reflect the degree of energy savings and time similarity to reflect the impact on user experience. We then propose a policy...
Dual-head flat-panel positron emission tomography (PET) is the dedicated system for small-animal imaging because of its high spatial resolution and detection sensitivity. Unlike the conventional ring-based PET system, the dual-head system is versatile and can be reconfigured readily to accommodate different sample sizes and/or to achieve an optimal system performance. However, the unique imaging geometry...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.