Camera calibration technique has important research and application value in the field of computer vision, and its precision directly affects the three-dimensional reconstruction effect. This paper elaborated the principles of the existing camera calibration methods: traditional camera calibration method, camera self-calibration method, and camera calibration method based on active vision, and analyzed the performance and application of each method. Camera calibration method based on laser ranging was presented, and its principle and realization process was given. Finally, pointed out the further research direction on camera calibration.

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