The measurement of similarity between documents is usually influenced by sparseness of term-document matrix. Latent semantic indexing(LSI) is an alternative method to solve the problem, and the dimension reduction by ...
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We proposed the spatiotemporal pixelization method based on vertical sub-sampling to improve reading ability for visual prosthesis. To evaluate proposed method, we simulated a test of reading performance of visual pro...
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The prediction of preterm delivery is very important for investigating risk factors for preterm birth and initiating risk specific treatment but still remains a challenge for obstetricians. Based on the fact that the ...
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Recent progress on a high-resolution, photon-counting gamma-ray and x-ray imager called BazookaSPECT is presented. BazookaSPECT is an example of a new class of scintillation detectors based on integrating detectors su...
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The studies of ECG measurement on the toilet seat have been performed specifically for the ubiquitous health care. Instead of the mainly used dry electrodes having several problems such as the electrical safety or the...
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The studies of ECG measurement on the toilet seat have been performed specifically for the ubiquitous health care. Instead of the mainly used dry electrodes having several problems such as the electrical safety or the environmental stability, we used the capacitively-coupled insulated electrodes, which were composed of the Cu plate and the PTFE film for the measurement. The bio-signal sensed with the insulated electrodes was measured through the ultra-high input impedance system including OPA111 having the common mode impedance of 1014 Ω. As the result of measuring the signal, with the electrical ground on the neck or the hand, the R-peaks were detected very positively. However, without the electrical ground on the body, we could detect the heartbeat signal, a kind of the motion artifacts by the variation of the blood vessel volume. It seems that this heartbeat signal can be also used as the important parameter like the R-peaks for the HRV (heart rate variability) analysis. In addition, it is thought that, without the directly electrical ground, the R-peak detection will be possible by the improvement of the SNR with the active common canceling system.
This paper suggests a new method to compensate perspective error in measuring real size of pupil of pupillography for pupil light response. To get real size of pupil, the distance between cornea and camera should be c...
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Novel blood pressure (BP) monitoring device focused on portability was studied preliminarily. Electrocardiogram (ECG) and photoplethysmogram (PPG) was measured and pulse arrival time (PAT) was computed from these sign...
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ISBN:
(纸本)9789898565341
Novel blood pressure (BP) monitoring device focused on portability was studied preliminarily. Electrocardiogram (ECG) and photoplethysmogram (PPG) was measured and pulse arrival time (PAT) was computed from these signals. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) showed a clear correlation with PAT. BP estimation model was constructed based on this result and verified by means of leave-one-out cross-validation (LOOCV). Estimated SBP, DBP were involved in two standards of means of original data. This device is expected to be useful to the people who want to monitor BP at any time and space.
In this study, a novel artificial renal replacement system is presented using a biocompatible polymeric nanofibers and MEMS technology. Usually, a classical artificial renal replacement system employs a semi-permeable...
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We developed an integrated home telemedicine system equipped with automatic diagnosis and consultation function for patients with chronic disease such as cardiac disease, respiratory disease, diabetes and hypertension...
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