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We have developed a real-time vital signs monitoring system for two years in 2012 and 2013. Just by putting a single vital sensor node to the back waist position of each player and placing four data collection nodes around a field, the system can monitor at a note PC heart rate (HR), energy expenditure (EE) and body temperature (BT) for all players during a football game in real-time, periodically...
Real-time vital data monitoring for athletes during training and game is essential for planning effective training menus and avoiding injuries and diseases. Especially for team sports such as footfall and rugby, how to reliably collect vital data from many players spread in a large field is a key issue. In our previous work [1], we developed a real-time vital data collection system in which a wireless...
In recent years, the vital data of athletes during training and game have been used to plan effective training menus and avoid injuries and diseases, where a vital sensor node is often mounted at the chest position of an athlete. One of the main problems is that a tri-axis accelerometer sensor should be mounted at a different position such as rear waist for accurate energy expenditure (EE) estimation...
Two sophisticated algorithms aimed at ‘dynamic-range enhancement’ and ‘super-resolution’ are implemented ded-icatedly for medical image processing. The first is intended for adaptive dynamic-range enhancement, originally developed as a means to enhance digital camera images captured under adverse conditions, such as contrejour and poor ambient lighting, which has been optimized for real-time processing...
In order to plan effective training menus and avoid injuries and diseases, vital signs monitoring for athletes during training and game is essential, where a key issue is how to collect vital data reliably and in real-time from many people spread in a large field. To realize such a real-time vital data monitoring system, we developed prototype wireless vital sensor nodes, and conducted twice field...
The hardware implementation of a sophisticated scaling algorithm for ‘super-resolution’ is described, which can scale up from a given lower-resolution image to a high-resolution image with more accurate depiction of edges and details than those of the conventional interpolation algorithms. Specifically, the devised algorithm can enlarge a given image to arbitrary sizes without "jaggy" artifacts...
To construct an energy-efficient wireless home network based on IEEE 802.15.4, a novel architecture is proposed. In this architecture, all nodes are classified into stationary nodes and mobile nodes according to the functionality of each node. Mobile nodes are usually battery-powered, and therefore need low-power operation. In order to improve power consumption of mobile nodes, effective handover...
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