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Recently, with the rapid spread of smartphones and tablet PCs, biometric authentication using handwritten signatures has been attracting much interest. However, little research has been reported on biometric template protection, which is indispensable for protecting one's privacy, especially when those devices are used in a network environment. Therefore, as a means of (biometric) template protection,...
Quantitative evaluation method of visual induced motion sickness (VIMS) on interactive video using biosignals index and body-motion indices were experimentally investigated. The results indicate that biosignals from RRI and respiration combined with the peak value and time-shift of cross-correlation between body motion signals and global motion vector might be a useful VIMS index for non-experts on...
The degree of fatigue after watching 3D contents on commercially available 3DTV that requires the use of shutter glasses was evaluated under various viewing conditions. 500 adults aged between 20 and 69 years and 131 minors aged between 12 and 19 years participated in this experiment. The results indicate that the adult participants showed significant differences in the subjective sensation of fatigue...
Simple electroencephalographs (EEG devices), which have recently become commercially available, are portable and wearable, such that they do not restrict a wearer's actions. This convenience of use enables the inexpensive and wide use of electroencephalography. This study examines the construction of a system that can capture EEG information using simple EEG devices and feed it back to a user. A prototype...
In embedded smart devices, efficient memory management is critical because they have relatively small main memory to reduce cost and power consumption. Though Input Output Memory Management Unit (IOMMU), which is recently adopted on embedded smart devices, gives more free spaces in system memory, it increases memory allocation time when memory space is highly fragmented. In this paper, we propose...
In recent years, multi-car elevator (MCE) provided with multi-car per shaft receive attention. By using MCE, it is expected that efficient transportation of passengers with smaller number of shafts and the decrease of elevator setting area in buildings. Therefore, various studies on MCE control have been made so far, and we also have proposed a MCE control method that assign a zone to a car dynamically...
Wireless mesh network (WMN) is a promising technology for building cost-effective and easy-deployable wireless home networking infrastructure. To efficiently utilize limited radio resources in WMNs, packet transmissions (especially, redundant packet transmissions) should be carefully managed. To this end, we introduce a software-defined WMN architecture where the data plane and control plane are separated...
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