Hiroki Itoh

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We have implemented an identity provider (IdP), which is defined by the Liberty Alliance on a mobile phone. We propose an authentication method, which uses this personal IdP as a security token to prevent password leakage. In our method, the personal IdP on a mobile phone issues a security assertion signed by a private key on a Universal Subscriber(More)
We investigated the relationship between plasma mid-regional pro-adrenomedullin (MR-proADM)-like immunoreactive substance (IS) level and clinical characteristics associated with renal failure or resistance to antihypertensive therapy in stable kidney transplant recipients. Forty-six Japanese kidney transplant recipients who underwent transplantation more(More)
BACKGROUND High-dose methotrexate (HDMTX) is used in the treatment of certain malignancies, including leptomeningeal metastases, systemic non-Hodgkin lymphoma, acute lymphoblastic leukemia, and osteosarcoma. High circulating levels of methotrexate can cause severe myelosuppression. The present study aimed to examine the differences in plasma MTX(More)
—In this paper, we propose a new method to detect and recognize events robustly in a soccer game. Based on the players density and speed, the events are detected and recognized using Hidden Markov Model (HMM). However, it is difficult to detect " free kick " and " throw in " because these events occur anytime and anywhere. In a soccer game, some event(More)
Cloud computing offers a rich set of services by pay per use basis. The features and technology offered by various providers created a great competitive market for the business. The various security issues are attracting attention, one of which is identity and privacy of the cloud user. Users are varied about the privacy of information which they have given(More)
Cevimeline is a novel muscarinic acetylcholine receptor agonist currently being developed as a therapeutic agent for xerostomia. We examined the effects of cevimeline on salivary and plasma levels of substance-P- (SP-), calcitonin-gene-related-peptide- (CGRP-), and vasoactive-intestinal-polypeptide- (VIP-) like immunoreactive substances (ISs) in humans. An(More)
Impaired renal function has been suggested to significantly impact plasma midregional proADM (MR-proADM) level. The aim of this study was to assess whether improvement of renal function after living kidney transplantation has an impact on plasma MR-proADM-like immunoreactive substance (IS) level. Eleven patients with end-stage renal disease (ESRD) who were(More)
In this paper, we propose a new method to track players using 3D particle filter guided by the time-situation graph in order to perform players tracking robust to occlusion in a soccer image sequence. In the conventional method using particle filter, there is a deficit that it is difficult to discover the players again once they are lost in an image(More)
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