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Inertial sensors

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https://www.readbyqxmd.com/read/28227952/smartstuff-a-case-study-of-a-smart-water-bottle
#1
Emil Jovanov, Vindhya R Nallathimmareddygari, Jonathan E Pryor, Emil Jovanov, Vindhya R Nallathimmareddygari, Jonathan E Pryor, Vindhya R Nallathimmareddygari, Emil Jovanov, Jonathan E Pryor
The rapid growth of Internet of Things (IoT) and miniature wearable biosensors have generated new opportunities for personalized eHealth and mHealth services. Smart objects equipped with physiological sensors can provide robust monitoring of activities of daily living and context for wearable physiological sensors. We present a case study of an intelligent water bottle that can precisely measure the amount of liquid in the bottle, monitor activity using inertial sensors, and physiological parameters using a touch and photoplethysmographic sensor...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227828/pose-measurement-of-anterior-pelvic-plane-based-on-inertial-measurement-unit-in-total-hip-replacement-surgeries
#2
Zhe Cao, Shaojie Su, Hong Chen, Hao Tang, Yixin Zhou, Zhihua Wang, Zhe Cao, Shaojie Su, Hong Chen, Hao Tang, Yixin Zhou, Zhihua Wang, Zhe Cao, Yixin Zhou, Hong Chen, Zhihua Wang, Hao Tang, Shaojie Su
In Total Hip Replacement (THR), inaccurate measurement of Anterior Pelvic Plane (APP), which is usually used as a reference plane, will lead to malposition of the acetabular prosthesis. As a result, the risk of impingement, dislocation and wear will increase and the safe range of motion will be limited. In order to acquire the accurate pose of APP, a measurement system is designed in this paper, which includes two parts: one is used to estimate the initial pose of APP and the other is used to trail dynamic motion of APP...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227796/estimation-of-joint-center-and-measurement-of-finger-motion-by-inertial-sensors
#3
Keisuke Kitano, Akihito Ito, Nobutaka Tsujiuchi, Shigeru Wakida, Keisuke Kitano, Akihito Ito, Nobutaka Tsujiuchi, Shigeru Wakida, Akihito Ito, Shigeru Wakida, Keisuke Kitano, Nobutaka Tsujiuchi
The authors developed a wearable finger motion measurement system using inertial and geomagnetic sensors. Using this system, motion and posture of the hands and fingers can be measured. However, the joint center and segment axis cannot be accurately measured in a previous study using the sensors. Therefore, the authors proposed a method of estimating the joint center and segment lengths. This method utilizes the fact that the calculation formula of the rotational acceleration in the sensor's coordinate system is the vector product...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227650/real-time-gait-event-detection-for-lower-limb-amputees-using-a-single-wearable-sensor
#4
H F Maqbool, M A B Husman, M I Awad, A Abouhossein, P Mehryar, N Iqbal, A A Dehghani-Sanij, H F Maqbool, M A B Husman, M I Awad, A Abouhossein, P Mehryar, N Iqbal, A A Dehghani-Sanij, M A B Husman, M I Awad, N Iqbal, P Mehryar, H F Maqbool, A Abouhossein, A A Dehghani-Sanij
This paper presents a rule-based real-time gait event/phase detection system (R-GEDS) using a shank mounted inertial measurement unit (IMU) for lower limb amputees during the level ground walking. Development of the algorithm is based on the shank angular velocity in the sagittal plane and linear acceleration signal in the shank longitudinal direction. System performance was evaluated with four control subjects (CS) and one transfemoral amputee (TFA) and the results were validated with four FlexiForce footswitches (FSW)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227635/identifying-the-number-and-location-of-body-worn-sensors-to-accurately-classify-walking-transferring-and-sedentary-activities
#5
Omar Aziz, Stephen N Robinovitch, Edward J Park, Omar Aziz, Stephen N Robinovitch, Edward J Park, Omar Aziz, Edward J Park, Stephen N Robinovitch
In order to perform fall risk assessments using wearable inertial sensors in older adults in their natural settings where falls are likely to occur, a first step is to automatically segment and classify sensor signals of human movements into the known `activities of interest'. Sensor data from such activities can later be used through quantitative and qualitative analysis for differentiating fallers from non-fallers. In this study, ten young adults participated in experimental trials involving several variations of walking, transferring and sedentary activities...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227631/testing-the-assumption-of-normality-in-body-sway-area-calculations-during-unipedal-stance-tests-with-an-inertial-sensor
#6
Kyoung Jae Kim, Jennifer Lucarevic, Christopher Bennett, Ignacio Gaunaurd, Robert Gailey, Vibhor Agrawal, Kyoung Jae Kim, Jennifer Lucarevic, Christopher Bennett, Ignacio Gaunaurd, Robert Gailey, Vibhor Agrawal, Christopher Bennett, Vibhor Agrawal, Jennifer Lucarevic, Kyoung Jae Kim, Ignacio Gaunaurd, Robert Gailey
The quantification of postural sway during the unipedal stance test is one of the essentials of posturography. A shift of center of pressure (CoP) is an indirect measure of postural sway and also a measure of a person's ability to maintain balance. A widely used method in laboratory settings to calculate the sway of body center of mass (CoM) is through an ellipse that encloses 95% of CoP trajectory. The 95% ellipse can be computed under the assumption that the spatial distribution of the CoP points recorded from force platforms is normal...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227629/inertial-sensor-based-gait-analysis-discriminates-subjects-with-and-without-visual-impairment-caused-by-simulated-macular-degeneration
#7
Christoph M Kanzler, Jens Barth, Jochen Klucken, Bjoern M Eskofier, Christoph M Kanzler, Jens Barth, Jochen Klucken, Bjoern M Eskofier, Jens Barth, Jochen Klucken, Bjoern M Eskofier, Christoph M Kanzler
Macular degeneration is the third leading cause of blindness worldwide and the leading cause of blindness in the developing world. The analysis of gait parameters can be used to assess the influence of macular degeneration on gait. This study examines the effect of macular degeneration on gait using inertial sensor based 3D spatio-temporal gait parameters. We acquired gait data from 21 young and healthy subjects during a 40 m obstacle walk. All subjects had to perform the gait trial with and without macular degeneration simulation glasses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227625/preliminary-investigation-of-energy-comparation-between-gyroscope-electromyography-and-vo2-wearable-sensors
#8
Gareth Williams, Saiyi Li, Pubudu N Pathirana, Gareth Williams, Saiyi Li, Pubudu N Pathirana, Pubudu N Pathirana, Saiyi Li, Gareth Williams
Building on previous experiments in the domain of energy expenditure estimation using wearable sensors, the measurements of energy ratios of a runner on a treadmill were analyzed to observe any commonalities between an inertia measurement unit and an electromyograph sensor. The subjects were equipped with a VO2 gas measurement device, an Inertial Measurement Unit (IMU) measuring gyroscopic activity and an electromyography (EMG) sensor network whilst running at 5 different speeds on a calibrated treadmill. The observed results established a co-linear relationship with the gyroscope based measurements, EMG based measurements with the VO2 measurements...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227560/a-dual-axis-single-proof-mass-angular-accelerometer-for-a-vestibular-prosthesis
#9
Yaesuk Jeong, Hakan Toreyin, Anosh Daruwalla, Pamela Bhatti, Farrokh Ayazi, Yaesuk Jeong, Hakan Toreyin, Anosh Daruwalla, Pamela Bhatti, Farrokh Ayazi, Farrokh Ayazi, Anosh Daruwalla, Yaesuk Jeong, Hakan Toreyin, Pamela Bhatti
A dual-axis single-proof-mass angular accelerometer has been developed for a vestibular prosthesis. Designed to sense head rotations both in the yaw and the pitch planes, the output of the inertial sensor may be coded as amplitude or rate modulated biphasic current pulses to stimulate vestibular nerves. Fabricated with a high aspect ratio commercial process, a sensor with small form factor (1.4 mm × 0.8 mm) is achieved with a scale factor of 95.5 μV/rad/sec(2) and 145.8 μV/rad/sec(2) in the yaw and the pitch planes, respectively...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227559/design-and-pilot-evaluation-of-competitive-and-cooperative-exercise-games-for-arm-rehabilitation-at-home
#10
Maja Gorsic, Domen Novak, Maja Gorsic, Domen Novak, Domen Novak, Maja Gorsic
People with chronic arm impairment should exercise intensely at home after completing their clinical rehabilitation program, but frequently lack motivation. To address this issue, we present a home rehabilitation system that motivates patients by allowing them to perform arm exercises together with friends or relatives in competitive and cooperative games. Inertial sensors are used to track the patient's arm and control the game. The system was tested with seven adults with arm impairment as well as their friends or spouses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227558/the-limb-movement-analysis-of-rehabilitation-exercises-using-wearable-inertial-sensors
#11
Bingquan Huang, Oonagh Giggins, Tahar Kechadi, Brian Caulfield, Bingquan Huang, Oonagh Giggins, Tahar Kechadi, Brian Caulfield, Bingquan Huang, Brian Caulfield, Oonagh Giggins, Tahar Kechadi
Due to no supervision of a therapist in home based exercise programs, inertial sensor based feedback systems which can accurately assess movement repetitions are urgently required. The synchronicity and the degrees of freedom both show that one movement might resemble another movement signal which is mixed in with another not precisely defined movement. Therefore, the data and feature selections are important for movement analysis. This paper explores the data and feature selection for the limb movement analysis of rehabilitation exercises...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227491/enhancing-improved-heuristic-drift-elimination-for-step-and-heading-based-pedestrian-dead-reckoning-systems
#12
Luis E Diez, Alfonso Bahillo, Safaa Bataineh, Antonio D Masegosa, Asier Perallos, Luis E Diez, Alfonso Bahillo, Safaa Bataineh, Antonio D Masegosa, Asier Perallos, Luis E Diez, Safaa Bataineh, Asier Perallos, Antonio D Masegosa, Alfonso Bahillo
Location based services can improve the quality of patient care and increase the efficiency of the healthcare systems. Among the different technologies that provide indoor positioning, inertial sensors based pedestrian dead-reckoning (PDR) is one of the more cost-effective solutions, but its performance is limited by drift problems. Regarding the heading drift, some heuristics make use of the building's dominant directions in order to reduce this problem. In this paper, we enhance the method known as improved heuristic drift elimination (iHDE) to be implemented in a Step-and-Heading (SHS) based PDR system, that allows to place the inertial sensors in almost any location of the user's body...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227321/fall-detection-algorithms-for-real-world-falls-harvested-from-lumbar-sensors-in-the-elderly-population-a-machine-learning-approach
#13
Alan K Bourke, Jochen Klenk, Lars Schwickert, Kamiar Aminian, Espen A F Ihlen, Sabato Mellone, Jorunn L Helbostad, Lorenzo Chiari, Clemens Becker, Alan K Bourke, Jochen Klenk, Lars Schwickert, Kamiar Aminian, Espen A F Ihlen, Sabato Mellone, Jorunn L Helbostad, Lorenzo Chiari, Clemens Becker, Lorenzo Chiari, Lars Schwickert, Kamiar Aminian, Clemens Becker, Jorunn L Helbostad, Jochen Klenk, Alan K Bourke, Sabato Mellone, Espen A F Ihlen
Automatic fall detection will promote independent living and reduce the consequences of falls in the elderly by ensuring people can confidently live safely at home for linger. In laboratory studies inertial sensor technology has been shown capable of distinguishing falls from normal activities. However less than 7% of fall-detection algorithm studies have used fall data recorded from elderly people in real life. The FARSEEING project has compiled a database of real life falls from elderly people, to gain new knowledge about fall events and to develop fall detection algorithms to combat the problems associated with falls...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227319/detecting-postural-transitions-a-robust-wavelet-based-approach
#14
Sadra Hemmati, Eric Wade, Sadra Hemmati, Eric Wade, Sadra Hemmati, Eric Wade
The ability to perform postural transitions such as sit-to-stand is an accepted metric for functional independence. The number of transitions performed in real-life situations provides clinically useful information for individuals recovering from lower extremity injury or surgery. Performance deficits during these transitions are well correlated to negative outcomes in numerous populations. Thus, continuous monitoring and detection of transitions in individuals outside of the clinical setting may provide important, clinically relevant information regarding the progression of physical impairments...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227238/design-and-development-of-a-sensorized-cylindrical-object-for-grasping-assessment
#15
F Cordella, F Taffoni, L Raiano, G Carpino, M Pantoni, L Zollo, E Schena, E Guglielmelli, D Formica, F Cordella, F Taffoni, L Raiano, G Carpino, M Pantoni, L Zollo, E Schena, E Guglielmelli, D Formica, M Pantoni, F Cordella, G Carpino, E Schena, L Zollo, D Formica, F Taffoni, L Raiano, E Guglielmelli
Aim of this work is to design and develop an instrumented cylindrical object equipped with force sensors, which is able to assess grasping performance of both human and robotic hands. The object is made of two concentric shells between which sixteen piezoresistive sensors have been located in order to measure the forces applied by the hand fingers during grasping. Furthermore, a magneto-inertial unit has been positioned inside the object for acquiring information about object orientation during manipulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227237/fusion-of-inertial-and-magnetic-sensors-for-3d-position-and-orientation-estimation
#16
P Tadayon, T Felderhoff, A Knopp, G Staude, P Tadayon, T Felderhoff, A Knopp, G Staude, G Staude, P Tadayon, T Felderhoff, A Knopp
This paper presents a new method for 3D position and orientation estimation based on the magnetic field generated by a single coil and the fusion of low power magnetometers and inertial sensors. The fixed spatial relationship between the sensors is exploited to solve the ambiguity problem that occurs when only a single coil is employed. In this context a new positioning algorithm is developed and verified by simulations. Using a single coil instead of three coils as common in conventional magnetic field based systems brings a benefit both regarding power consumption and construction size...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227189/segmentation-of-human-upper-body-movement-using-multiple-imu-sensors
#17
Takashi Aoki, Jonathan Feng-Shun Lin, Dana Kulic, Gentiane Venture, Takashi Aoki, Jonathan Feng-Shun Lin, Dana Kulic, Gentiane Venture, Jonathan Feng-Shun Lin, Takashi Aoki, Gentiane Venture, Dana Kulic
This paper proposes an approach for the segmentation of human body movements measured by inertial measurement unit sensors. Using the angular velocity and linear acceleration measurements directly, without converting to joint angles, we perform segmentation by formulating the problem as a classification problem, and training a classifier to differentiate between motion end-point and within-motion points. The proposed approach is validated with experiments measuring the upper body movement during reaching tasks, demonstrating classification accuracy of over 85...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227185/estimation-of-walked-distance-using-inertial-sensors-under-real-conditions
#18
Martin Cerny, Norbert Noury, Martin Cerny, Norbert Noury, Norbert Noury, Martin Cerny
This paper focuses on the comparison of the three most cited algorithms for calculation of walked distance in human, from accelerations measured by inertial sensors placed near the center of mass of human body. The algorithms were tested in real conditions during short walk travels, up to 10 meters, which are typical distances inside the flat. We used two different sensors-one included in a smart phone and our own developed sensor. Results show the differences between tested algorithms in real conditions and their possibilities in real applications, and show better results obtained with the model of the inverted pendulum...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227178/a-smartphone-application-suite-for-assessing-mobility
#19
Priyanka Madhushri, Armen A Dzhagaryan, Emil Jovanov, Aleksandar Milenkovic, Priyanka Madhushri, Armen A Dzhagaryan, Emil Jovanov, Aleksandar Milenkovic, Armen A Dzhagaryan, Priyanka Madhushri, Emil Jovanov, Aleksandar Milenkovic
Modern smartphones integrate a growing number of inertial and environmental sensors that can enable the development of new mobile health applications. In this paper we introduce a suite of smartphone applications for assessing mobility in elderly population. The suite currently includes applications that automate and quantify the following standardized medical tests for assessing mobility: Timed-Up-and-Go (TUG), 30 Seconds Chair Stand Test (30SCS), and a 4-stage Balance Test (4SBT). For each smartphone application we describe its functionality and a list of parameters extracted by processing signals from smartphone's inertial sensors...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227058/iproprio-a-smartphone-based-system-to-measure-and-improve-proprioceptive-function
#20
Q Mourcou, A Fleury, B Diot, N Vuillerme, Q Mourcou, A Fleury, B Diot, N Vuillerme, Q Mourcou, A Fleury, B Diot, N Vuillerme
It is well known that proprioception is necessary to maintain balance control. Although proprioceptive exercices have shown to have beneficial effects on balance, the joint position sense is not easy to measure and patient cannot practise self-measurement. This article proposes a new system specifically desinged to allow measure and improve proprioceptive function. This so-called `iProprio' system uses inertial sensors included in a smartphone, wireless communication and voice command to allow joint position sense measurment in autonomous way and provide a configurable vibrotactile biofeedback for end-users at home...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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