Pub Date : 2009-04-01DOI: 10.4108/ICST.PERVASIVEHEALTH2009.6018
Alan L. Liu, Harlan Hile, G. Borriello, Henry A. Kautz, Pat A. Brown, Mark K Harniss, Kurt L. Johnson
Individuals with cognitive impairments are often prevented from independently living, working, and fully participating in their community due to wayfinding concerns. We conducted two user studies of a mobile wayfinding aid designed to support such individuals. The first study examined usability issues related to wayfinding outdoors. The results were positive overall, but showed that the directions we used were at times too low-level, requiring strict adherence to the route and therefore highly precise message timing. The second study examined the use of landmarks to provide directions at a higher-level, as a way to overcome the limitations of the directions we were using. We found that certain types of landmark-based directions were significantly easier to follow, but individual performance varied across most direction types. The findings from both studies show that individuals with cognitive impairments would benefit from a wayfinding system that is capable of supporting customizable and adaptable direction selection.
{"title":"Informing the design of an automated wayfinding system for individuals with cognitive impairments","authors":"Alan L. Liu, Harlan Hile, G. Borriello, Henry A. Kautz, Pat A. Brown, Mark K Harniss, Kurt L. Johnson","doi":"10.4108/ICST.PERVASIVEHEALTH2009.6018","DOIUrl":"https://doi.org/10.4108/ICST.PERVASIVEHEALTH2009.6018","url":null,"abstract":"Individuals with cognitive impairments are often prevented from independently living, working, and fully participating in their community due to wayfinding concerns. We conducted two user studies of a mobile wayfinding aid designed to support such individuals. The first study examined usability issues related to wayfinding outdoors. The results were positive overall, but showed that the directions we used were at times too low-level, requiring strict adherence to the route and therefore highly precise message timing. The second study examined the use of landmarks to provide directions at a higher-level, as a way to overcome the limitations of the directions we were using. We found that certain types of landmark-based directions were significantly easier to follow, but individual performance varied across most direction types. The findings from both studies show that individuals with cognitive impairments would benefit from a wayfinding system that is capable of supporting customizable and adaptable direction selection.","PeriodicalId":199517,"journal":{"name":"2009 3rd International Conference on Pervasive Computing Technologies for Healthcare","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132271951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-04-01DOI: 10.4108/ICST.PERVASIVEHEALTH2009.5913
A. Sant'Anna, Nicholas Wickström
This work concerns the use of human movement classification as a tool for monitoring and supporting older peoples' lives. The “motion language” methodology is a movement classification technique which aims at generalizing movements and providing easy interpretation of motion signals by decomposing activities into elementary building blocks referred to as “motion primitives”. The use of motion primitives to classify motion from visual data has been studied. This work shows that the motion language methodology can be applied to acceleration signals, contributing to the development of wearable monitoring systems. This paper explains the development of the motion language and its use in a gait analysis study. Preliminary results show that the motion language methodology can be used to quantitatively measure gait parameters. In addition, motion primitives are shown to express static and dynamic characteristics of different gait patterns and were used to calculate a new symmetry index.
{"title":"Developing a motion language: Gait analysis from accelerometer sensor systems","authors":"A. Sant'Anna, Nicholas Wickström","doi":"10.4108/ICST.PERVASIVEHEALTH2009.5913","DOIUrl":"https://doi.org/10.4108/ICST.PERVASIVEHEALTH2009.5913","url":null,"abstract":"This work concerns the use of human movement classification as a tool for monitoring and supporting older peoples' lives. The “motion language” methodology is a movement classification technique which aims at generalizing movements and providing easy interpretation of motion signals by decomposing activities into elementary building blocks referred to as “motion primitives”. The use of motion primitives to classify motion from visual data has been studied. This work shows that the motion language methodology can be applied to acceleration signals, contributing to the development of wearable monitoring systems. This paper explains the development of the motion language and its use in a gait analysis study. Preliminary results show that the motion language methodology can be used to quantitatively measure gait parameters. In addition, motion primitives are shown to express static and dynamic characteristics of different gait patterns and were used to calculate a new symmetry index.","PeriodicalId":199517,"journal":{"name":"2009 3rd International Conference on Pervasive Computing Technologies for Healthcare","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134451534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-04-01DOI: 10.4108/ICST.PERVASIVEHEALTH2009.5939
Yanmin Zhu, M. Sloman, Emil C. Lupu, S. Keoh
The proliferation of low-power wireless communications and handheld devices has facilitated the development of pervasive systems for healthcare applications. This paper describes a body sensor network comprising a personal controller, various biosensors and actuators for pervasive healthcare. Various physiological parameters such as heart rate or blood oxygen level can be continuously monitored. The growing complexity of such systems, however, poses challenges for system management and security. In this paper we present a secure autonomic body sensor network called Vesta which makes use of the extensible architecture pattern of a self managed cell (SMC). A policy-driven management paradigm supports adaptability to contextual changes by applying event-condition-action rules. Fine-grained access control of the system is realized through authorization policies. Experimental evaluation shows that it is viable and practical for real-world pervasive healthcare.
{"title":"Vesta: A secure and autonomic system for pervasive healthcare","authors":"Yanmin Zhu, M. Sloman, Emil C. Lupu, S. Keoh","doi":"10.4108/ICST.PERVASIVEHEALTH2009.5939","DOIUrl":"https://doi.org/10.4108/ICST.PERVASIVEHEALTH2009.5939","url":null,"abstract":"The proliferation of low-power wireless communications and handheld devices has facilitated the development of pervasive systems for healthcare applications. This paper describes a body sensor network comprising a personal controller, various biosensors and actuators for pervasive healthcare. Various physiological parameters such as heart rate or blood oxygen level can be continuously monitored. The growing complexity of such systems, however, poses challenges for system management and security. In this paper we present a secure autonomic body sensor network called Vesta which makes use of the extensible architecture pattern of a self managed cell (SMC). A policy-driven management paradigm supports adaptability to contextual changes by applying event-condition-action rules. Fine-grained access control of the system is realized through authorization policies. Experimental evaluation shows that it is viable and practical for real-world pervasive healthcare.","PeriodicalId":199517,"journal":{"name":"2009 3rd International Conference on Pervasive Computing Technologies for Healthcare","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133290700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-04-01DOI: 10.4108/ICST.PERVASIVEHEALTH2009.6021
M. Martini, A. Polpetta, P. Banelli
The use of telemedicine capabilities to manage aged and cardiac chronically ill patients is going to become a common practice. Usefulness and diagnostic value of classical ECG monitoring and recording can be enhanced by jointly collecting and analysing data detected by other sensors (e.g. movement detectors) which enable to associate specific cardiac events with the patient's environment and activity at the time epoch the cardiac event appears. In this scenario, characterized by a continuous growth of data volume to be stored and transmitted, data compression plays a crucial role. In this paper we propose a compression method aimed at preserving and exploiting the different diagnostic importance of different ECG segments, making smart use of context information, i.e. information about the patient's condition. Specifically, we focus on a 2D compression method that exploits the features of JPEG2000 compression and we propose a novel paradigm for context-adaptive compression of ECG data.
{"title":"Context-aware multi-lead ECG compression based on standard image codecs","authors":"M. Martini, A. Polpetta, P. Banelli","doi":"10.4108/ICST.PERVASIVEHEALTH2009.6021","DOIUrl":"https://doi.org/10.4108/ICST.PERVASIVEHEALTH2009.6021","url":null,"abstract":"The use of telemedicine capabilities to manage aged and cardiac chronically ill patients is going to become a common practice. Usefulness and diagnostic value of classical ECG monitoring and recording can be enhanced by jointly collecting and analysing data detected by other sensors (e.g. movement detectors) which enable to associate specific cardiac events with the patient's environment and activity at the time epoch the cardiac event appears. In this scenario, characterized by a continuous growth of data volume to be stored and transmitted, data compression plays a crucial role. In this paper we propose a compression method aimed at preserving and exploiting the different diagnostic importance of different ECG segments, making smart use of context information, i.e. information about the patient's condition. Specifically, we focus on a 2D compression method that exploits the features of JPEG2000 compression and we propose a novel paradigm for context-adaptive compression of ECG data.","PeriodicalId":199517,"journal":{"name":"2009 3rd International Conference on Pervasive Computing Technologies for Healthcare","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123941450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-04-01DOI: 10.4108/ICST.PERVASIVEHEALTH2009.5969
G. Hembroff, S. Muftic
The National Institutes of Health, along with other healthcare related agencies, continue to define the importance of exchanging medical data between hospitals and other healthcare providers. However, issues within the medical field such as interoperability, scalability and security continue to plague electronic exchange of information within the healthcare sector. In this paper we present an approach, called Secure Healthcare Information Exchange for Local Domains (SHIELD), which defines strategic components within an architecture that solves the problem of interoperability, scalability and security. Our solution integrates biometric and smart card technology that permits each hospital to exchange medical data with other hospitals within the trusted federation, without sacrificing the ability for individual hospitals to maintain their own policy enforcement. This research is currently being implemented within one Regional Center and fourteen hospitals within the Upper Peninsula of Michigan in the United States.
美国国立卫生研究院(National Institutes of Health)和其他医疗保健相关机构继续强调医院和其他医疗保健提供者之间交换医疗数据的重要性。然而，医疗领域的互操作性、可扩展性和安全性等问题继续困扰着医疗保健部门的电子信息交换。在本文中，我们提出了一种称为本地域安全医疗保健信息交换(SHIELD)的方法，该方法定义了解决互操作性、可伸缩性和安全性问题的体系结构中的战略组件。我们的解决方案集成了生物识别和智能卡技术，允许每个医院与可信联盟内的其他医院交换医疗数据，而不会牺牲单个医院维护自己的政策执行的能力。这项研究目前正在美国密歇根州上半岛的一个区域中心和14家医院内进行。
{"title":"Secure healthcare information exchange for local domains","authors":"G. Hembroff, S. Muftic","doi":"10.4108/ICST.PERVASIVEHEALTH2009.5969","DOIUrl":"https://doi.org/10.4108/ICST.PERVASIVEHEALTH2009.5969","url":null,"abstract":"The National Institutes of Health, along with other healthcare related agencies, continue to define the importance of exchanging medical data between hospitals and other healthcare providers. However, issues within the medical field such as interoperability, scalability and security continue to plague electronic exchange of information within the healthcare sector. In this paper we present an approach, called Secure Healthcare Information Exchange for Local Domains (SHIELD), which defines strategic components within an architecture that solves the problem of interoperability, scalability and security. Our solution integrates biometric and smart card technology that permits each hospital to exchange medical data with other hospitals within the trusted federation, without sacrificing the ability for individual hospitals to maintain their own policy enforcement. This research is currently being implemented within one Regional Center and fourteen hospitals within the Upper Peninsula of Michigan in the United States.","PeriodicalId":199517,"journal":{"name":"2009 3rd International Conference on Pervasive Computing Technologies for Healthcare","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126565680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-04-01DOI: 10.4108/ICST.PERVASIVEHEALTH2009.5872
Seulki Lee, Jerald Yoo, H. Yoo
This paper proposes a wearable inductor channel for blood pressure monitoring system in daily life. To achieve high wearability and low power consumption, inductive coupling concept with textile-based inductors is introduced. Two types of wearable inductors are proposed, and both of them are demonstrated to have the possibility as a wearable inductor channel for blood pressure sensors in daily life.
{"title":"A wearable inductor channel design for blood pressure monitoring system in daily life","authors":"Seulki Lee, Jerald Yoo, H. Yoo","doi":"10.4108/ICST.PERVASIVEHEALTH2009.5872","DOIUrl":"https://doi.org/10.4108/ICST.PERVASIVEHEALTH2009.5872","url":null,"abstract":"This paper proposes a wearable inductor channel for blood pressure monitoring system in daily life. To achieve high wearability and low power consumption, inductive coupling concept with textile-based inductors is introduced. Two types of wearable inductors are proposed, and both of them are demonstrated to have the possibility as a wearable inductor channel for blood pressure sensors in daily life.","PeriodicalId":199517,"journal":{"name":"2009 3rd International Conference on Pervasive Computing Technologies for Healthcare","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128487908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-04-01DOI: 10.4108/ICST.PERVASIVEHEALTH2009.5997
I. Alakärppä, J. Riekki, Raumi Koukkula
We have developed a new, pervasive system for the monitoring and recording of subjective pain experiences. The system was tested in six healthcare organizations. The testing covered 27 personnel members and 27 test users. During the field testing of the pain monitoring system, we studied the user experience from the perspective of patients and nursing personnel. The study also focused on the system's adoption requirements at home and in the hospital environment. The pervasive pain monitoring system increased the test users' feeling of security and supported their experience of continued treatment. We noticed that the experience of care supports and that acceptance requires observing the users' physical and psychological capacities. The pain meter and patient application supports a patient's pain treatment of acute and long-term pain in hospital conditions and in follow-up treatment at home. It also promotes continuity and enhances the availability of treatment. Also, a clear connection was found between the users' technical abilities and their willingness to start using the system.
{"title":"Pervasive pain monitoring system: User experiences and adoption requirements in the hospital and home environments","authors":"I. Alakärppä, J. Riekki, Raumi Koukkula","doi":"10.4108/ICST.PERVASIVEHEALTH2009.5997","DOIUrl":"https://doi.org/10.4108/ICST.PERVASIVEHEALTH2009.5997","url":null,"abstract":"We have developed a new, pervasive system for the monitoring and recording of subjective pain experiences. The system was tested in six healthcare organizations. The testing covered 27 personnel members and 27 test users. During the field testing of the pain monitoring system, we studied the user experience from the perspective of patients and nursing personnel. The study also focused on the system's adoption requirements at home and in the hospital environment. The pervasive pain monitoring system increased the test users' feeling of security and supported their experience of continued treatment. We noticed that the experience of care supports and that acceptance requires observing the users' physical and psychological capacities. The pain meter and patient application supports a patient's pain treatment of acute and long-term pain in hospital conditions and in follow-up treatment at home. It also promotes continuity and enhances the availability of treatment. Also, a clear connection was found between the users' technical abilities and their willingness to start using the system.","PeriodicalId":199517,"journal":{"name":"2009 3rd International Conference on Pervasive Computing Technologies for Healthcare","volume":"457 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125820296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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