Kenichi Hirose

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The present study was conducted to evaluate the validity and reproducibility of noninvasive brachial-ankle pulse wave velocity (baPWV) measurements and to examine the alteration of baPWV in patients with coronary artery disease (CAD). Simultaneous recordings of baPWV by a simple, noninvasive method and aortic pulse wave velosity (PWV) using a catheter tip(More)
The present study was conducted to evaluate the influences of age and gender on the results of noninvasive brachial-ankle pulse wave velocity (baPWV). In 12517 subjects who had no medication and no history of cardiovascular diseases, multiple regression analysis demonstrated that age, blood pressure, body mass index, triglycerides, blood glucose, and uric(More)
Although the presence of coronary heart disease (CHD) was the major determinant of perioperative mortality and long-term prognosis in patients with aortic aneurysm (AA) and peripheral artery disease (PAD), the prevalence and severity of CHD in patients with individual vascular diseases was unknown. Adenosine triphosphate-loading myocardial single-photon(More)
In this paper, we propose a new method for detecting tire-road contact points and estimating the position of a vehicle on a road taking the distortion in a circular fisheye image into consideration. In our proposed method, we use the distortional parameter of two concentric circles composed of the inner wheel and the outer tire by considering projection(More)
Performance robot serving as communication media: development of an 'eyeball robot' investigating bodily communication Yoshiyuki Miwa a , Hiroshi Itoh b , Tomoki Yamashita c & Kenichi Hirose d a School of Science and Engineering, Waseda University, Waseda, Japan b Graduate School of Scienee and Engineering, Waseda University, Waseda, Japan c School of(More)
Vision-based research in driver support and traffic monitoring systems aiming for collision avoidance and for free traffic jams has attracted a lot of attention lately. In this paper, we propose a robust new extraction method of wheel region for estimating the vehicle position on a road taking the distortion in a circular fisheye image into consideration.(More)
Vehicle classification is very important in traffic flow analysis for traffic monitoring systems. Accurate estimation of wheel baseline length can provide a useful cue for vehicle classification. In this paper, we propose a new method for detecting accurate wheel center points and estimating the wheel baseline length of a vehicle taking the distortion in(More)
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