L. de Agapito, D. Q. Huynh, and M. J. Brooks. Self-calibrating a stereo head: an error analysis in the neighbourhood of degenerate configurations. In Proceedings of the 6th International Conference on Computer Vision, Bombay, pages 747--753, 1998.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....of the two values of the focal length. The main drawback is the existence of singularities, especially the case of coplanar optical axes, which does not allow to compute the focal length, with any algorithm [12] Brooks et al. have considered the case of identical focal length for the two views [2, 3]. Their analysis is restricted to the case of a typical stereo system: the optical axes are perfectly coplanar and the relative motion between the two views is planar motion, the normal of the motion plane being parallel to the image plane s x or y axis. This gives rise to a special form of the ....

....from images. Future work will concern the evaluation of the algo 20 40 60 80 100 250 200 150 100 50 0 50 100 150 200 250 Displacement is the failure rate for a noise level of 0.6. rithm s sensitivity to errors in the assumed or given values of the other intrinsic parameters, as in [3], or to non perfectly identical focal lengths. It would also be interesting to derive a similar method for the three view case, via the trifocal tensor. ....

L. De Agapito, D.Q. Huynh and M.J. Brooks. Self-Calibrating a Stereo Head: An Error Analysis in The Neighbourhood of Degenerate Configurations. ICCV, 747-753, 1998.

....we study the case of a moving camera with variable and unknown focal length, but whose other intrinsic parameters are known. A practical self calibration algorithm was proposed by Azarbayejani and Pentland [1] Algorithms and closed form solutions for the two view case are given, e.g. in Refs. [3 5,8,12]. Newsam et al. derived the critical motions for the two view case [12] In this paper, we derive a complete characterization of critical motion sequences for any number of views and the critical motions for stereo systems. This paper is an extended version of [19] The paper is organized as ....

L. de Agapito, D.Q. Huynh, M.J. Brooks, Self-calibrating a stereo head: an error analysis in the neighbourhood of degenerate configurations, Proceedings of the International Conference on Computer Vision, Bombay, India, 1998, pp. 747-753.

....existence of singularities, especially the case of coplanar optical axes, which does not allow to compute the focal length, with any algorithm [12] # This work was supported by the project IST 1999 10756, VISIRE. Brooks et al. have considered the case of identical focal length for the two views [2, 3]. Their analysis is restricted to the case of a typical stereo system: the optical axes are perfectly coplanar and the relative motion between the two views is planar motion, the normal of the motion plane being parallel to the image plane s x or y axis. This gives rise to a special form of the ....

....algorithm, together with the singularity analysis, may constitute a small, though useful module in systems for e.g. 3D modeling from images. Future work will concern the evaluation of the algorithm s sensitivity to errors in the assumed or given values of the other intrinsic parameters, as in [3], or to non perfectly identical focal lengths. It would also be interesting to derive a similar method for the three view case, via the trifocal tensor. ....

L. De Agapito, D.Q. Huynh and M.J. Brooks. Self-Calibrating a Stereo Head: An Error Analysis in The Neighbourhood of Degenerate Configurations. ICCV, 747-753, 1998.

....than the focal lengths. The same calibration values were used for both of the robot s cameras (see Section 3. 2 for details of the pinhole camera model) Automated camera calibration is now an important area of computer vision research, and self calibration of stereo rigs has also been tackled [25, 55]. However, it is felt 2.8 Calibration 26 that this work is somewhat adjacent to the work in this thesis, where the emphasis is on using a calibrated active camera system effectively for navigation. ffl Head: Section 3.3 describes the mathematical model used of the active head. The constant ....

L. de Agapito, D. Q. Huynh, and M. J. Brooks. Self-calibrating a stereo head: an error analysis in the neighbourhood of degenerate configurations. In Proc. 6th Int'l Conf. on Computer Vision, Bombay, pages 747--753, 1998.

....case of a moving camera with variable and unknown focal length, but whose other intrinsic parameters are known. A practical self calibration algorithm was proposed by Azarbayejani and Pentland [1] Algorithms and closed form solutions for the two view case were given by Hartley and Brooks et al. [7, 3, 4, 10]. Newsam et al. derived the critical motions for the two view case [10] In this paper, we derive a complete characterization of critical motion sequences, for any number of views, and the critical motions for stereo systems. The paper is organized as follows. In x2 we provide some theoretical ....

L. de Agapito, D.Q. Huynh and M.J. Brooks, "Self-Calibrating a Stereo Head: An Error Analysis in The Neighbourhood of Degenerate Configurations," ICCV, India, 747-753, 1998.

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L. de Agapito, D. Q. Huynh, and M. J. Brooks. Self-calibrating a stereo head: an error analysis in the neighbourhood of degenerate configurations. In Proceedings of the 6th International Conference on Computer Vision, Bombay, pages 747--753, 1998.

No context found.

L. de Agapito, D. Q. Huynh, and M. J. Brooks. Self-calibrating a stereo head: an error analysis in the neighbourhood of degenerate configurations. In Proceedings of the 6th International Conference on Computer Vision, Bombay, pages 747--753, 1998.

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