Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Multiple view geometry in computer visiond
Multiple view geometry in computer visiond
Using a steerable projector and a camera to transform surfaces into interactive displays
CHI '01 Extended Abstracts on Human Factors in Computing Systems
AutomaticKeystone Correction for Camera-Assisted Presentation Interfaces
ICMI '00 Proceedings of the Third International Conference on Advances in Multimodal Interfaces
iLamps: geometrically aware and self-configuring projectors
ACM SIGGRAPH 2003 Papers
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
Interaction Using a Handheld Projector
IEEE Computer Graphics and Applications
A semi-automatic realtime calibration technique for a handheld projector
Proceedings of the 2007 ACM symposium on Virtual reality software and technology
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This paper describes the use of computer vision to support the operation of a handheld projector, and describes four applications. Projectors in the past have been used as fixed devices, but the latest generation of ‘pocket projectors’ is small and portable. We demonstrate the feasibility of using a projector held in the hand, and the types of applications that can be done with a handheld projector. We attach a camera to the projector to support its operation in two ways. Firstly, vision is used to recover the motion of the projector relative to the display surface. A handheld projector with motion recovery allows a range of interesting functionality, and we show how web-browsing can be done with a handheld projector, complete with mouse interaction and text-entry. Secondly, we use the camera to process information about the projection surface – for example we demonstrate an application that allows a user to attach digital information to a physical texture, and later to recover and view the digital data via recognition of the texture.