Calibration method of line-scan camera based on projection transformation

doi:10.13474/j.cnki.11-2246.2019.0121

Abstract

Abstract:

In view of the difficulty of obtaining the calibrated data of the line-scan camera and the instability of the model solution, a calibration method based on the projection transformation is proposed. First, a new imaging model of linear rotation scanning camera is constructed. The model can be projected into a frame image based on the parameters of the rotating platform of the camera and the position relationship between the image plane and the tangent plane. Then, according to the imaging model constructed, the direct linear transformation method and nonlinear optimization method are used for camera calibration and parameter optimization. The experimental results show that the method is simple and feasible with high accuracy.

Key words: camera calibration, projection transformation, line-scan camera, rotation scanning, imaging model, nonlinear optimization

CLC Number:

SU Lin, WU Zhaocong, YAN Zhao, WANG Peng. Calibration method of line-scan camera based on projection transformation[J]. 测绘通报, 2019, 0(4): 96-98,102.

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