UCLIC Research Seminar Series
Independent navigation is very challenging for blind people often due to a lack of confidence and knowledge about the environment, particularly in unfamiliar or complex locations. In this talk, I will describe some of the technological solutions we developed and evaluated - when I was at Carnegie Mellon University - in order to support blind users in navigating unknown locations by themselves. In particular, I will talk about a highly accurate smartphone-based indoor navigation system called NavCog3; a virtual navigation system allowing blind users to explore unknown locations before physically visiting the environment; and Cabot, a navigation robot that guides blind users to a destination while avoiding obstacles on their path.
João Guerreiro, Daisuke Sato, Dragan Ahmetovic, Eshed Ohn-Bar, Kris M. Kitani, and Chieko Asakawa. "Virtual navigation for blind people: Transferring route knowledge to the real-World." International Journal of Human-Computer Studies (2020).
João Guerreiro, Daisuke Sato, Saki Asakawa, Huixu Dong, Kris M. Kitani, and Chieko Asakawa. "CaBot: Designing and Evaluating an Autonomous Navigation Robot for Blind People." In Proceedings of the international ACM SIGACCESS Conference on Computers & Accessibility (ASSETS 2019).
João Guerreiro, Dragan Ahmetovic, Daisuke Sato, Kris M. Kitani, and Chieko Asakawa. "Airport Accessibility and Navigation Assistance for People with Visual Impairments." In Proceedings of the ACM CHI Conference on Human Factors in Computing Systems (CHI 2019)).
Daisuke Sato, Uran Oh, João Guerreiro, Dragan Ahmetovic, Kakuya Naito, Hironobu Takagi, Kris M. Kitani, and Chieko Asakawa. "NavCog3 in the Wild: Large-Scale Blind Indoor Navigation Assistant with Semantic Features" ACM Transactions on Accessible Computing (2019)
João Guerreiro, Dragan Ahmetovic, Kris M. Kitani, and Chieko Asakawa. "Virtual Navigation for Blind People: Building Sequential Representations of the Real-World." In Proceedings of the international ACM SIGACCESS conference on Computers & accessibility (ASSETS 2017)
João Guerreiro is an Assistant Professor at Faculdade de Ciências, Universidade de Lisboa. Previously, he was a Postdoctoral researcher at Carnegie Mellon University. He received his PhD with distinction and honour in Information Systems and Computer Engineering from Instituto Superior Técnico, Universidade de Lisboa. His research, in the fields of Human-Computer Interaction and Accessible Computing, aims to improve blind people's access to the physical and digital worlds using novel non-visual interaction techniques and systems. João Guerreiro publishes his research regularly at the premiere venues in Human-Computer Interaction and Accessible Computing (e.g., ACM CHI and ACM ASSETS).