Multitouch enabled surfaces can bring advantages to modelling scenarios, in particular if bimanual and pen input can be combined. In this work, we assess the suitability of multitouch interfaces to 3D sketching tasks. We developed a multitouch enabled version of ShapeShop, whereby bimanual gestures allow users to explore the canvas through camera operations while using a pen to sketch. This provides a comfortable setting familiar to most users. Our contribution focuses on comparing the combined approach (bimanual and pen) to the pen-only interface for similar tasks. We conducted the evaluation helped by ten sketching experts who exercised both techniques. Results show that our approach both simplifies workflow and lowers task times, when compared to the pen-only interface, which is what most current sketching applications provide.
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Video of participants and myself showing Muscle-Propelled Force Feedback (youtube) Force feedback devices resist miniaturization, because they require physical motors and mechanics. We propose mobile force feedback by eliminating motors and instead actuating the user’s muscles using electrical stimulation. Without the motors, we obtain substantially smaller and more energy-efficient devices. Our prototype fits on the back of a mobile […]
Biohacking and Brain Computer interfaces: the future of Human Computer Interaction (video/youtube) As a discipline, Human Computer Interaction (HCI) has always wandered on the boundaries between art and science, mainly due to its multidisciplinary genealogy, but often because it is a process of envisioning and questioning the future. The ideas of Cyborg, Augmented Humans and Bio-Feedback […]
My keynote at LEAP Berlin, about art and science – focus on how artists and scientists push boundaries! [Photo, courtesy of Peter Kirn] Read the bio/synopsis from the program of Body Controlled here. More will be published on the upcoming issue of the Canadian Journal of Electroacoustics!
Constructable by Stefanie Mueller, Pedro Lopes, and Patrick Baudisch To appear in Proceedings of UIST ’12 (Paper). Constructable is an interactive drafting table that produces precise physical output in every step. Users interact by drafting directly on the workpiece using a hand-held laser pointer. The system tracks the pointer, beautifies its path, and implements its effect by cutting the workpiece […]
Pedro Lopes, Ricardo Jota, Joaquim Jorge [Published at ACM ITS 2011, Kobe, Japan / paper] Recognizing how a person actually touches a surface has generated a strong interest within the interactive surfaces community. Although we agree that touch is the main source of information, unless other cues are accounted for, user intention might not be accurately […]