I am a third year PhD student at the Interact-lab from the Department of Informatics of the University of Sussex. Under the supervision from Prof. Sriram Subramanian, my research work is focused on computational approaches for User Interfaces (UI) design and Virtual Reality.
Before joining to the Interact-lab, I received my MSc in Electronics at the National Institute of Technology of Mexico.
I am interested in applying optimisation techniques that include human factors to improve user-centred interfaces. For instance, ergonomic evaluations for interaction techniques to improve user comfort in Immersive Virtual Reality (IVR) scenarios (when using full body tracking systems).
- Department of Engineering and Informatics
- University of Sussex
- Brighton, UK
VR applications are widely used, involving increasingly challenging conditions such as realism, the feeling of presence and comfort. Full body tracking interactions improve naturalness in VR interfaces. Nevertheless, this kind of interactions involves large movements resulting in high physical effort. Erg-O project introduces “Ergonomic Retargeting” which focusses on improving user’s comfort in full body interactions in VR by warping the 3D space with controlled distortions reducing user’s movement ratios (reducing effort) and hacking users perception to create the illusion of interaction with all elements in the original place.
NaviFields quantifies the requirements for precise navigation of each point of the environment, allowing natural navigation within relevant areas, while scaling users’ displacements when travelling across non-relevant spaces. This expands the size of the navigable space, retains the natural navigation metaphor and still allows for areas with precise control of the virtual head.
We present an approach for the semi-automatic generation of gesture mappings for devices with low gestural resolution. We quantify data related to interaction combining systematic studies (i.e. error, speed, accuracy) and semi-structured workshops with experts (i.e. cognitive load, heuristics). We then formalize these factors in a mathematical model and use optimization algorithms (i.e. simulated annealing) to find an optimum gesture mapping. We demonstrate our method in a text-entry application (i.e. pervasive task with complex interactive dialogue) using a Myo armband, and compare our approach with other computationally determined mappings using naive cost functions.
“Erg-O: Ergonomic Optimization of Immersive Virtual Environments”
Roberto Montano Murillo; Sriram Subramanian; Diego Martinez Plasencia (2017) In: ACM Symposium on User Interface Software and Technology (UIST 2017) October 2017, Quebec City, Canada.
“NaviFields: Relevance Fields for Adaptive VR Navigation”
Roberto Montano Murillo; Elia Gatti, Miguel Oliver Segovia, Marianna Obrist, Jose Molina Masso, Diego Martinez Plasencia (2017) In: ACM Symposium on User Interface Software and Technology (UIST 2017) October 2017, Quebec City, Canada.