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Papers by Paulo Trigueiros
Vision-based hand gesture recognition is an area of active current research in computer vision an... more Vision-based hand gesture recognition is an area of active current research in computer vision and machine learning. Being a natural way of human interaction, it is an area where many researchers are working on, with the goal of making human computer interaction (HCI) easier and natural, without the need for any extra devices In this paper, a solution is proposed, the Gesture Learning Module Architecture (GeLMA), that allows the definition in a simple way of a set of commands that can be based on static and dynamic gestures and that can be easily integrated and configured to be used in a number of applications. It is easy to train and use, and since it is mainly built with open source libraries it is also an inexpensive one. Experiments carried out showed that the system was able to achieve an accuracy of 99.2% in terms of hand posture recognition and an average accuracy of 93,72% in terms of dynamic gesture recognition. To validate the proposed framework, two systems were implemented. The first one is an online system able to help a robotic soccer game referee judge a game in real time. The second one is an online system able to interpret the Portuguese Sign Language.
Studies in health technology and informatics, 1994
A telematic based system for antenatal care has been developed to be used in service integration ... more A telematic based system for antenatal care has been developed to be used in service integration between primary and secondary health care units. The system is based on low cost platforms and has a user friendly human computer interface. This system will provide better integration and coordination between the health care providers involved, improving the quality of the services. This experiment is being funded in the framework of the EC.Project-A 2007-EPIC. Quality indicators, agreed in the "European concensus conference of quality indicators for perinatal care", organized in conjunction with OBSQID project (AIM.2125) were integrated in the system. Data collection has started and the outcome will be used to validate the indicators on a transeuropean basis under the framework of the OBSQID Project.
Advances in Intelligent Systems and Computing, 2014
This book contains a selection of articles from The 2014 World Conference on Information Systems ... more This book contains a selection of articles from The 2014 World Conference on Information Systems and Technologies (WorldCIST'14), held between the 15th and 18th of April in Funchal, Madeira, Portugal, a global forum for researchers and practitioners to present and discuss recent results and innovations, current trends, professional experiences and challenges of modern Information Systems and Technologies research, technological development and applications.The main topics covered are: Information and Knowledge Management; Organizational Models and Information Systems; Intelligent and Decision Support Systems; Software Systems, Architectures, Applications and Tools; Computer Networks, Mobility and Pervasive Systems; Radar Technologies; Human-Computer Interaction; Health Informatics and Information Technologies in Education.
Cadernos de Investigação do Mestrado em Negócio Eletrónico
O presente artigo aborda a inteligência artificial e o seu impacto no negócio eletrónico de uma f... more O presente artigo aborda a inteligência artificial e o seu impacto no negócio eletrónico de uma forma geral. O Objetivo do atual artigo é, portanto, analisar a área de conhecimento da Inteligência artificial algumas das suas subáreas e o negócio eletrónio numa visão global. Ao longo deste artigo, iremos abordar a Machine learning e a forma como esta melhora o desempenho de experiências e prevê sem estar expressamente programado. O conceito de comercio eletrónico e negócio eletrónico também constam neste artigo, de modo a entender o impacto que a inteligência artificial tem no negocio eletrónico.
2011 International Conference on Image Information Processing, 2011
International journal of multidisciplinary advanced scientific research and innovation, 2021
Hand gesture is language through which normal people can communicate with deaf and dumb people. H... more Hand gesture is language through which normal people can communicate with deaf and dumb people. Hand gesture recognition detects the hand pose and converts it to the corresponding alphabet or sentence. In past years it received great attention from society because of its application. It uses machine learning algorithms. Hand gesture recognition is a great application of human computer interaction. An emerging research field that is based on human centered computing aims to understand human gestures and integrate users and their social context with computer systems. One of the unique and challenging applications in this framework is to collect information about human dynamic gestures. Keywords: Tensor Flow, Machine learning, React js, handmark model, media pipeline
Special thanks to all respondents (Suppl. Mat. Appendix A3-Contributors / Respondents) and to all... more Special thanks to all respondents (Suppl. Mat. Appendix A3-Contributors / Respondents) and to all who have contributed to diffusion and promotion of the Roadkills survey: Road Ecology Group on Facebook, Asociacion Herpetologica Granadina, Asociacion Herpetologica Espanola (AHE), Herpnet and all individuals who have also believed appropriate the disclosure of the survey. Thanks to an anonymous reviewer for English linguistic advising and for the comments and suggestions that greatly improved the last version of the manuscript. M. Franch and C. Silva are funded by a grant (UMINHO/ BI/175/2013, UMINHO/BI/172/2013) (from the Foundation for Science and Technology Portugal (FCT) and cofinanced by FEDER through COMPETE –POFC (“Intelligent systems for mapping amphibian mortality on Portuguese roads”, PTDC/BIA-BIC/4296/2012). N. Sillero is supported by an FCT contract IF/01526/2013.
Lecture Notes in Computational Vision and Biomechanics, 2015
Advances in Intelligent Systems and Computing, 2014
2014 IEEE International Conference on Autonomous Robot Systems and Competitions (ICARSC), 2014
This paper describes the new generation of Minho Team robots since the last RoboCup participation... more This paper describes the new generation of Minho Team robots since the last RoboCup participation. Robots have been rebuilt from top to bottom, keeping the essence of the previous generation, but lighter, faster, improved sight, new algorithms and new ...
Vision-based hand gesture recognition is an area of active current research in computer vision an... more Vision-based hand gesture recognition is an area of active current research in computer vision and machine learning. Being a natural way of human interaction, it is an area where many researchers are working on, with the goal of making human computer interaction (HCI) easier and natural, without the need for any extra devices In this paper, a solution is proposed, the Gesture Learning Module Architecture (GeLMA), that allows the definition in a simple way of a set of commands that can be based on static and dynamic gestures and that can be easily integrated and configured to be used in a number of applications. It is easy to train and use, and since it is mainly built with open source libraries it is also an inexpensive one. Experiments carried out showed that the system was able to achieve an accuracy of 99.2% in terms of hand posture recognition and an average accuracy of 93,72% in terms of dynamic gesture recognition. To validate the proposed framework, two systems were implemented. The first one is an online system able to help a robotic soccer game referee judge a game in real time. The second one is an online system able to interpret the Portuguese Sign Language.
Studies in health technology and informatics, 1994
A telematic based system for antenatal care has been developed to be used in service integration ... more A telematic based system for antenatal care has been developed to be used in service integration between primary and secondary health care units. The system is based on low cost platforms and has a user friendly human computer interface. This system will provide better integration and coordination between the health care providers involved, improving the quality of the services. This experiment is being funded in the framework of the EC.Project-A 2007-EPIC. Quality indicators, agreed in the "European concensus conference of quality indicators for perinatal care", organized in conjunction with OBSQID project (AIM.2125) were integrated in the system. Data collection has started and the outcome will be used to validate the indicators on a transeuropean basis under the framework of the OBSQID Project.
Advances in Intelligent Systems and Computing, 2014
This book contains a selection of articles from The 2014 World Conference on Information Systems ... more This book contains a selection of articles from The 2014 World Conference on Information Systems and Technologies (WorldCIST'14), held between the 15th and 18th of April in Funchal, Madeira, Portugal, a global forum for researchers and practitioners to present and discuss recent results and innovations, current trends, professional experiences and challenges of modern Information Systems and Technologies research, technological development and applications.The main topics covered are: Information and Knowledge Management; Organizational Models and Information Systems; Intelligent and Decision Support Systems; Software Systems, Architectures, Applications and Tools; Computer Networks, Mobility and Pervasive Systems; Radar Technologies; Human-Computer Interaction; Health Informatics and Information Technologies in Education.
Cadernos de Investigação do Mestrado em Negócio Eletrónico
O presente artigo aborda a inteligência artificial e o seu impacto no negócio eletrónico de uma f... more O presente artigo aborda a inteligência artificial e o seu impacto no negócio eletrónico de uma forma geral. O Objetivo do atual artigo é, portanto, analisar a área de conhecimento da Inteligência artificial algumas das suas subáreas e o negócio eletrónio numa visão global. Ao longo deste artigo, iremos abordar a Machine learning e a forma como esta melhora o desempenho de experiências e prevê sem estar expressamente programado. O conceito de comercio eletrónico e negócio eletrónico também constam neste artigo, de modo a entender o impacto que a inteligência artificial tem no negocio eletrónico.
2011 International Conference on Image Information Processing, 2011
International journal of multidisciplinary advanced scientific research and innovation, 2021
Hand gesture is language through which normal people can communicate with deaf and dumb people. H... more Hand gesture is language through which normal people can communicate with deaf and dumb people. Hand gesture recognition detects the hand pose and converts it to the corresponding alphabet or sentence. In past years it received great attention from society because of its application. It uses machine learning algorithms. Hand gesture recognition is a great application of human computer interaction. An emerging research field that is based on human centered computing aims to understand human gestures and integrate users and their social context with computer systems. One of the unique and challenging applications in this framework is to collect information about human dynamic gestures. Keywords: Tensor Flow, Machine learning, React js, handmark model, media pipeline
Special thanks to all respondents (Suppl. Mat. Appendix A3-Contributors / Respondents) and to all... more Special thanks to all respondents (Suppl. Mat. Appendix A3-Contributors / Respondents) and to all who have contributed to diffusion and promotion of the Roadkills survey: Road Ecology Group on Facebook, Asociacion Herpetologica Granadina, Asociacion Herpetologica Espanola (AHE), Herpnet and all individuals who have also believed appropriate the disclosure of the survey. Thanks to an anonymous reviewer for English linguistic advising and for the comments and suggestions that greatly improved the last version of the manuscript. M. Franch and C. Silva are funded by a grant (UMINHO/ BI/175/2013, UMINHO/BI/172/2013) (from the Foundation for Science and Technology Portugal (FCT) and cofinanced by FEDER through COMPETE –POFC (“Intelligent systems for mapping amphibian mortality on Portuguese roads”, PTDC/BIA-BIC/4296/2012). N. Sillero is supported by an FCT contract IF/01526/2013.
Lecture Notes in Computational Vision and Biomechanics, 2015
Advances in Intelligent Systems and Computing, 2014
2014 IEEE International Conference on Autonomous Robot Systems and Competitions (ICARSC), 2014
This paper describes the new generation of Minho Team robots since the last RoboCup participation... more This paper describes the new generation of Minho Team robots since the last RoboCup participation. Robots have been rebuilt from top to bottom, keeping the essence of the previous generation, but lighter, faster, improved sight, new algorithms and new ...
Proceedings of the 7th Iberian Conference on Information Systems and Technologies (CISTI), 2012
Hand gesture recognition for human computer interaction is an area of active research in computer... more Hand gesture recognition for human computer interaction is an area of active research in computer vision and machine learning. The primary goal of gesture recognition research is to create a system, which can identify specific human gestures and use them to convey information or for device control. This paper presents a comparative study of four classification algorithms for static hand gesture classification using two different hand features data sets. The approach used consists in identifying hand pixels in each frame, extract features and use those features to recognize a specific hand pose. The results obtained proved that the ANN had a very good performance and that the feature selection and data preparation is an important phase in the all process, when using low-resolution images like the ones obtained with the camera in the current work.