Multiple View Geometry in Computer Vision
Multiple View Geometry in Computer Vision
Advances in Computational Stereo
IEEE Transactions on Pattern Analysis and Machine Intelligence
PhoneGuide: museum guidance supported by on-device object recognition on mobile phones
MUM '05 Proceedings of the 4th international conference on Mobile and ubiquitous multimedia
FEATURE: Realizing the vision of mobile spatial interaction
interactions - Toward a model of innovation
Journal of Location Based Services - 4th International Conference on LBS and TeleCartography Hong Kong
Personal and Ubiquitous Computing
Supporting device discovery and spontaneous interaction with spatial references
Personal and Ubiquitous Computing
SURF: speeded up robust features
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part I
UbiComp'06 Proceedings of the 8th international conference on Ubiquitous Computing
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New mobile phone technologies are enablers for the emerging field of mobile spatial interaction, which refers to the direct access and manipulation of spatially-related information and services. Typical applications include the visualization of information about historical buildings or the discovery and selection of surrounding devices, by simply pointing to the real-world objects of interest. However, a major drawback is the required augmentation of the objects or knowledge about the environment, in order to be able to distinguish at which object the user is actually aiming at. We address this issue by estimating the distance and position of arbitrary objects within a mobile phone's line of sight, solely based on the information provided by its on-board sensors. This new approach uses stereo vision to estimate the distance to nearby objects, inertial sensors to measure the displacement of the camera between successive images, as well as GPS and a digital compass to get its absolute position and orientation. In this paper, we focus on the vision-based estimation of distances, and present the results of an experiment which demonstrates its accuracy and performance.