• Journal of Internet Computing and Services
    ISSN 2287 - 1136(Online) / ISSN 1598 - 0170 (Print)
    http://jics.or.kr/

Camera Extrinsic Parameter Estimation using 2D Homography and Nonlinear Minimizing Method based on Geometric Invariance Vector


Jeong-Hee Cha, Journal of Internet Computing and Services, Vol. 6, No. 6, pp. 187-0, Dec. 2005
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Keywords: invariant Feature, Levenberg-Marquardt Method, 2D Homography, camera extrinsic parameter

Abstract

In this paper, we propose a method to estimate camera motion parameter based on invariant point features, Typically, feature information of image has drawbacks, it is variable to camera viewpoint, and therefore information quantity increases after time, The LM(Levenberg-Marquardt) method using nonlinear minimum square evaluation for camera extrinsic parameter estimation also has a weak point, which has different iteration number for approaching the minimal point according to the initial values and convergence time increases if the process run into a local minimum, In order to complement these shortfalls, we, first proposed constructing feature models using invariant vector of geometry, Secondly, we proposed a two-stage calculation method to improve accuracy and convergence by using 2D homography and LM method, In the experiment, we compared and analyzed the proposed method with existing method to demonstrate the superiority of the proposed algorithms,


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Cite this article
[APA Style]
Jeong-Hee Cha (2005). Camera Extrinsic Parameter Estimation using 2D Homography and Nonlinear Minimizing Method based on Geometric Invariance Vector. Journal of Internet Computing and Services, 6(6), 187-0.

[IEEE Style]
J. Cha, "Camera Extrinsic Parameter Estimation using 2D Homography and Nonlinear Minimizing Method based on Geometric Invariance Vector," Journal of Internet Computing and Services, vol. 6, no. 6, pp. 187-0, 2005.

[ACM Style]
Jeong-Hee Cha. 2005. Camera Extrinsic Parameter Estimation using 2D Homography and Nonlinear Minimizing Method based on Geometric Invariance Vector. Journal of Internet Computing and Services, 6, 6, (2005), 187-0.