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Camera Calibration |
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Calibration of camera lens distortion is crucial to obtaining maximum camera performance. Various calibration models exist which can be computed by different techniques. Some compute lens distortion parameters in the camera calibration process itself, together with the intrinsic and extrinsic parameters. Others isolate lens distortion calibration without using a template, based on the deformation of straight lines or circles in an image. However, the result of the calibration process can also be unstable, depending on the model and the number of parameters used.
Metric Lens Distortion Calibration (MLDC) This method computes several camera lens distortion models outside the camera calibration process under stable conditions, independently of the computed lens distortion model and its parameters. To facilitate the solution, this metric technique uses the same calibration template that is subsequently used for the calibration process. It can be resolved using just a single image of the template.
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Carlos Ricolfe-Viala |
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