Thulio Araujo, R. Roberto, J. M. Teixeira, Francisco Simões, V. Teichrieb, J. P. Lima, Ermano Arruda
Augmented Reality (AR) applications are becoming popular recently. Among other things, AR requires a precise real-time tracking to work properly. Simultaneous Localization and Mapping (SLAM) is one way to perform this task. Commonly used in robotics applications, SLAM creates a map of the environment to use it as input to compute the pose while uses the pose to increment the map. At the same time, mobile devices are evolving faster lately. Along with more processing power and memory capabilities, they are being embedded with several powerful resources, such as depth sensors. Taking this into account, this work introduces STAM, a Simple Tracking and Mapping system that was developed in desktop and evaluated in a challenging scenario. Additionally, STAM was ported to a mobile version, using the Android platform and Google's Tango tablet device. Finally, the system was evaluated concerning its desktop version. The desktop version presented better tracking performance in simple scenarios with respect to reprojection error, but it presented a few drawbacks when dealing with the most complex ones. Regarding the mobile version, it proved to be slower than its desktop counterpart. However, it was more precise.
{"title":"Life Cycle of a SLAM System: Implementation, Evaluation and Port to the Project Tango Device","authors":"Thulio Araujo, R. Roberto, J. M. Teixeira, Francisco Simões, V. Teichrieb, J. P. Lima, Ermano Arruda","doi":"10.1109/SVR.2016.13","DOIUrl":"https://doi.org/10.1109/SVR.2016.13","url":null,"abstract":"Augmented Reality (AR) applications are becoming popular recently. Among other things, AR requires a precise real-time tracking to work properly. Simultaneous Localization and Mapping (SLAM) is one way to perform this task. Commonly used in robotics applications, SLAM creates a map of the environment to use it as input to compute the pose while uses the pose to increment the map. At the same time, mobile devices are evolving faster lately. Along with more processing power and memory capabilities, they are being embedded with several powerful resources, such as depth sensors. Taking this into account, this work introduces STAM, a Simple Tracking and Mapping system that was developed in desktop and evaluated in a challenging scenario. Additionally, STAM was ported to a mobile version, using the Android platform and Google's Tango tablet device. Finally, the system was evaluated concerning its desktop version. The desktop version presented better tracking performance in simple scenarios with respect to reprojection error, but it presented a few drawbacks when dealing with the most complex ones. Regarding the mobile version, it proved to be slower than its desktop counterpart. However, it was more precise.","PeriodicalId":444488,"journal":{"name":"2016 XVIII Symposium on Virtual and Augmented Reality (SVR)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130849729","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}
R. V. Aranha, Luciano Vieira de Araújo, Carlos B. M. Monteiro, T. Silva, Fátima L. S. Nunes
Considering the complexity involved in the motor rehabilitation process, this paper presents the development of a serious game with virtual reality and natural interaction to act as a support tool for physical therapy professionals. The objective of the developed application is to enable that patients acquire skill in performing tasks in the virtual environment to transfer them later to the real environment. An experiment was conducted to compare the performance of people with and without mobility limitations in the use of the virtual environment. The results showed that the time spent for performing tasks tend to be reduced when the users familiarize them selves with natural interaction, and size and position of objects have influence in the interaction. The study allowed inferring in this sample evaluated that the motor limitations of the patients did not have influence in the performance of the volunteers.
{"title":"MoVEROffice: Virtual Reality for Upper Limbs Rehabilitation","authors":"R. V. Aranha, Luciano Vieira de Araújo, Carlos B. M. Monteiro, T. Silva, Fátima L. S. Nunes","doi":"10.1109/SVR.2016.36","DOIUrl":"https://doi.org/10.1109/SVR.2016.36","url":null,"abstract":"Considering the complexity involved in the motor rehabilitation process, this paper presents the development of a serious game with virtual reality and natural interaction to act as a support tool for physical therapy professionals. The objective of the developed application is to enable that patients acquire skill in performing tasks in the virtual environment to transfer them later to the real environment. An experiment was conducted to compare the performance of people with and without mobility limitations in the use of the virtual environment. The results showed that the time spent for performing tasks tend to be reduced when the users familiarize them selves with natural interaction, and size and position of objects have influence in the interaction. The study allowed inferring in this sample evaluated that the motor limitations of the patients did not have influence in the performance of the volunteers.","PeriodicalId":444488,"journal":{"name":"2016 XVIII Symposium on Virtual and Augmented Reality (SVR)","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122806122","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}
Virtual Reality is a useful tool to aid in phobia treatment. Since 1995 it has been used to help people with airplane travel phobia, also been employed against various anxiety disturbs. In this work we deploy a virtual environment which resembles an airport, which aims at raising anxiety levels similar to those resulting of the equivalent real environment exposure. The goal is to aid in ptesiophobia treatment. In this work we deploy a virtual environment which resembles an airport, which aims at raising anxiety levels similar to those resulting of the equivalent real environment exposure. The goal is to aid in ptesiophobia treatment.
{"title":"A Low-Cost Immersive Virtual Environment for Ptesiophobia Treatment","authors":"Raquel Ellem Marcelino de Oliveira, J. Oliveira","doi":"10.1109/SVR.2016.45","DOIUrl":"https://doi.org/10.1109/SVR.2016.45","url":null,"abstract":"Virtual Reality is a useful tool to aid in phobia treatment. Since 1995 it has been used to help people with airplane travel phobia, also been employed against various anxiety disturbs. In this work we deploy a virtual environment which resembles an airport, which aims at raising anxiety levels similar to those resulting of the equivalent real environment exposure. The goal is to aid in ptesiophobia treatment. In this work we deploy a virtual environment which resembles an airport, which aims at raising anxiety levels similar to those resulting of the equivalent real environment exposure. The goal is to aid in ptesiophobia treatment.","PeriodicalId":444488,"journal":{"name":"2016 XVIII Symposium on Virtual and Augmented Reality (SVR)","volume":"18 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121007309","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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