Jun-ichi Mizusawa

Bio: Jun-ichi Mizusawa is an academic researcher from Aoyama Gakuin University. The author has contributed to research in topics: Local area network & Access network. The author has an hindex of 4, co-authored 11 publications receiving 124 citations.

KINECT applications for the physical rehabilitation

Abstract: This report presents the results of KINECT applications used in physical rehabilitation tests. Aoyama Gakuin and Kitasato universities collaborated on this project, which is supported by SCOPE. The applications, following standard tests, are for the timed “Up & Go Test”, the timed “10-Meter Walk Test” and for a Joint “Range of Motion” Measurement”; test results are given. The implementation, evaluation and advantages of a proposed “Real-time ROM Measurement” are also given. The proposed KINECT application will be useful for enhancement of KINECT technical capabilities and for further advancements in medical care.

KINECT applications for the physical rehabilitation

Abstract: This report presents the results of KINECT applications used in physical rehabilitation tests. Aoyama Gakuin and Kitasato universities collaborated on this project, which is supported by SCOPE. The applications, following standard tests, are for the timed “Up & Go Test”, the timed “10-Meter Walk Test” and for a Joint “Range of Motion” Measurement”; test results are given. The implementation, evaluation and advantages of a proposed “Real-time ROM Measurement” are also given. The proposed KINECT application will be useful for enhancement of KINECT technical capabilities and for further advancements in medical care.

Joint angle measuring system

Abstract: PROBLEM TO BE SOLVED: To provide a system allowing a subject to further easily measure a joint angle by performing an operation of opening/closing a designated joint with a will of his/her own.SOLUTION: A joint angle measuring system includes: an imaging unit with depth information for generating photographing image data of a subject, depth information of each pixel of the photographing image data, and skeleton information of the subject in a virtual three-dimensional space; and a joint angle calculation unit that generates spatial vector information of two sides connected to the joint that is designated in the skeleton and the movable range of which is to be measured, and calculates the joint angle on the basis of the spatial vector information of the two sides.

Hybrid network as a service: Proposal and implementation

Abstract: With the invention of the optical fiber and the IP technology revolution, many networking centered services have been proposed in terms of the “Cloud”. The paper proposes a Hybrid Network service, that is: a combination of a dark fiber network (non-IP) and an IP network. Two types of three dimensional (3D) test-bed operation and a practical introduction of 2D high-definition video (HDV) distribution are described.

Testbed design and implementation of HDMI based 3D broadcast CWDM access network

Abstract: Testbed operations of three real-time transmission types are described: three-dimensional (+ two-dimensional) High-Definition Multimedia Interface (HDMI) broadcast on Point to Multi-Point connections, two-dimensional HDMI broadcast on Multi-Point to Multi-Point connections, and three-dimensional HDMI full duplex on Point to Point connection The network design has an optical broadcast topology centered with an “optical hub” The testbed terminals access the network via an Optical Network Interface Card (ONIC) The optical hub is a passive device that carries out optical signal splitting and coupling Plural Coarse Wavelength Division Multiplexing (CWDM) wavelengths are transmitted between ONICs via the optical hub Four wavelengths carry one HDMI signal to provide real-time transmission without compression One wavelength is dedicated exclusively to carrying the Ethernet frame This paper first introduces the design and implementation, then explains the issues and further considerations for implementing an HDMI-based three-dimensional broadcast access network

google,我,萨娜

Abstract: IT Status "Password doesn't match" error. 4Help is aware that after you change your VT Google password, you will be unable to log on to VT Google Apps services including Mail, Drive, Groups, etc. 4Help is notifying the appropriate people. 12:00 Noon: Engineers have found a backlog on Google password replication. Once the backlog clears you should be able to log on with your changed password that you set earlier. You may be able to log on with your old VT Google password until the system catches up and syncs the new password. Service Degraded Service Degraded [Resolved] Created: Thu, 04/14/2016 11:20am Resolved: Fri, 04/15/2016 1:16pm Duration: 1 day 1 hour 56 min 1734 Views Source URL: https://computing.vt.edu/content/google-0

A Review on Technical and Clinical Impact of Microsoft Kinect on Physical Therapy and Rehabilitation

Abstract: This paper reviews technical and clinical impact of the Microsoft Kinect in physical therapy and rehabilitation. It covers the studies on patients with neurological disorders including stroke, Parkinson’s, cerebral palsy, and MS as well as the elderly patients. Search results in Pubmed and Google scholar reveal increasing interest in using Kinect in medical application. Relevant papers are reviewed and divided into three groups: (1) papers which evaluated Kinect’s accuracy and reliability, (2) papers which used Kinect for a rehabilitation system and provided clinical evaluation involving patients, and (3) papers which proposed a Kinect-based system for rehabilitation but fell short of providing clinical validation. At last, to serve as technical comparison to help future rehabilitation design other sensors similar to Kinect are reviewed.

Assessment of movement quality in robot- assisted upper limb rehabilitation after stroke: a review.

Abstract: Studies of stroke patients undergoing robot-assisted rehabilitation have revealed various kinematic parameters describing movement quality of the upper limb. However, due to the different level of stroke impairment and different assessment criteria and interventions, the evaluation of the effectiveness of rehabilitation program is undermined. This paper presents a systematic review of kinematic assessments of movement quality of the upper limb and identifies the suitable parameters describing impairments in stroke patients. A total of 41 different clinical and pilot studies on different phases of stroke recovery utilizing kinematic parameters are evaluated. Kinematic parameters describing movement accuracy are mostly reported for chronic patients with statistically significant outcomes and correlate strongly with clinical assessments. Meanwhile, parameters describing feed-forward sensorimotor control are the most frequently reported in studies on sub-acute patients with significant outcomes albeit without correlation to any clinical assessments. However, lack of measures in coordinated movement and proximal component of upper limb enunciate the difficulties to distinguish the exploitation of joint redundancies exhibited by stroke patients in completing the movement. A further study on overall measures of coordinated movement is recommended.

Everything as a Service (XaaS) on the Cloud: Origins, Current and Future Trends

Abstract: For several years now, scientists have been proposing numerous models for defining anything "as a service (aaS)", including discussions of products, processes, data a information management, and security as a service. In this paper, based on a thorough literature survey, we investigate the vast stream of the state of the art in Everything as a Service (XaaS). We then use this investigation to explore an integrated view of XaaS that will help propose approaches for migrating applications to the cloud and exposing them as services.

Kinematic Validation of a Multi-Kinect v2 Instrumented 10-Meter Walkway for Quantitative Gait Assessments

Abstract: Walking ability is frequently assessed with the 10-meter walking test (10MWT), which may be instrumented with multiple Kinect v2 sensors to complement the typical stopwatch-based time to walk 10 meters with quantitative gait information derived from Kinect’s 3D body point’s time series. The current study aimed to evaluate a multi-Kinect v2 set-up for quantitative gait assessments during the 10MWT against a gold-standard motion-registration system by determining between-systems agreement for body point’s time series, spatiotemporal gait parameters and the time to walk 10 meters. To this end, the 10MWT was conducted at comfortable and maximum walking speed, while 3D full-body kinematics was concurrently recorded with the multi-Kinect v2 set-up and the Optotrak motion-registration system (i.e., the gold standard). Between-systems agreement for body point’s time series was assessed with the intraclass correlation coefficient (ICC). Between-systems agreement was similarly determined for the gait parameters’ walking speed, cadence, step length, stride length, step width, step time, stride time (all obtained for the intermediate 6 meters) and the time to walk 10 meters, complemented by Bland-Altman’s bias and limits of agreement. Body point’s time series agreed well between the motion-registration systems, particularly so for body points in motion. For both comfortable and maximum walking speeds, the between-systems agreement for the time to walk 10 meters and all gait parameters except step width was high (ICC ≥ 0.888), with negligible biases and narrow limits of agreement. Hence, body point’s time series and gait parameters obtained with a multi-Kinect v2 set-up match well with those derived with a gold standard in 3D measurement accuracy. Future studies are recommended to test the clinical utility of the multi-Kinect v2 set-up to automate 10MWT assessments, thereby complementing the time to walk 10 meters with reliable spatiotemporal gait parameters obtained objectively in a quick, unobtrusive and patient-friendly manner.