Accurate Visual Metrology from Single and Multiple Uncalibrated Images [Winner of The British Computer Society Distinguished Dissertation. Accurate Visual Metrology from Single and Multiple Uncalibrated Images ( Distinguished Dissertations) by Antonio Criminisi () on Accurate Visual Metrology from Single and Multiple Uncalibrated Images by Antonio Criminisi, , available at Book Depository.
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If this is OK with you, please click ‘Accept cookies’, otherwise you will see this notice on every page. For more information, please click here. The work described fgom this thesis develops the theory of computing world measurements from photographs of scenes and reconstructing three-dimensional models of the scene.
Accurate Visual Metrology from Single and Multiple Uncalibrated Images
The main tool used is Projective Geometry which forms the basis for accurate estimation algorithms. The techniques presented employ uncalibrated images; no knowledge of the camera internal parameters such as focal length and aspect ratio or its pose position and orientation is required at any time.
Extensive use is made of geometric characteristics of the scene, thus there is no need for specialized calibration devices. A hierarchy of novel, accurate and flexible techniques is developed to address a number of different situations ranging from where no scene metric information is known to cases where some distances are known but there is not sufficient information for a complete camera calibration.
The geometry of single views is explored and monocular vision shown to be sufficient to obtain a partial or complete three-dimensional reconstruction of a scene. To achieve this the properties of planar homographies and planar homologies are extensively exploited.
The geometry of multiple views is also investigated, particularly the use of a parallax-based approach for structure and camera recovery.
The duality between two-view and three-view configurations is described in detail. Measured distances must be associated with a measurement accuracy to be meaningful.
Therefore, an uncertainty propagation analysis is developed uncaligrated order to take account of the possible sources of error and how they affect the uncertainty in the final measurements. The general techniques developed in this thesis can be applied to several areas.
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Department of Engineering Science, University of Oxford. This material is presented to ensure timely dissemination of scholarly and technical work.
Accurate Visual Metrology from Single and Multiple Uncalibrated Images
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