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- W95514366 abstract "In this technical report, we address the problem of quasi-Euclidean reconstruction (i.e., close to scaled Euclidean but not necessarily exact) using an uncalibrated camera with a specific known type of motion, namely unknown but complete orbital motion. By orbital motion, we mean pure rotation about a fixed arbitrary axis. Exact scaled Euclidean reconstruction for orbital motion is not possible because of the 2 degree-of-freedom ambiguity [22]. We bypass the usual intermediate stages of projective or affine reconstruction and recover 3-D structure directly from point correspondences obtained from a two-stage bidirectional tracking process. 3-D reconstruction is done by applying the iterative Levenberg-Marquardt algorithm to minimize error between actual point tracks and projected point tracks. We show that reconstruction from complete orbital motion is superior to that from partial orbital motion. This work also investigates the sensitivity of recovered quasi-Euclidean reconstruction, tilt, and object rotation to the actual camera tilt. c Digital Equipment Corporation, 1997 This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such copying is by permission of the Cambridge Research Laboratory of Digital Equipment Corporation in Cambridge, Massachusetts; an acknowledgment of the authors and individual contributors to the work; and all applicable portions of the copyright notice. Copying, reproducing, or republishing for any other purpose shall require a license with payment of fee to the Cambridge Research Laboratory. All rights reserved. CRL Technical reports are available on the CRL’s web page at http://www.crl.research.digital.com. Digital Equipment Corporation Cambridge Research Laboratory One Kendall Square, Building 700 Cambridge, Massachusetts 02139" @default.
- W95514366 created "2016-06-24" @default.
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- W95514366 date "2002-01-01" @default.
- W95514366 modified "2023-09-26" @default.
- W95514366 title "Quasi-Euclidean Recovery from Unknown but Complete Orbital Motion" @default.
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