A Spatial Optimization for Camera Interior Orientation Parameters

Abstract:

A new calibration method for camera interior orientation parameters is proposed using the known spatial coordinates and the corresponding single photo. Firstly, principle point coordinates, principle distance and exterior orientation parameters are solved by the direct linear method without consideration of distortion parameters. Then, accurate interior and exterior orientation parameters are refined through the process of nonlinear optimization, during which the distance of spatial point to corresponding ray are minimized. Distortion factors of radial distortion, tangential distortion, affine distortion and non-orthogonal distortion are taken into consideration. This paper uses Levenberg-Marquardt optimization method to avoid inaccurate initial parameters influence upon the process of convergence.

• Periodical: Applied Mechanics and Materials (Volume 389)
• Pages: 941-947
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.389.941
• Online since: August 2013
• Authors: Yu Long Li, Peng Sun, Ming Li Dong
• Keywords: Calibration, Interior Orientation Parameters, LM Optimization

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