Lianxiong Liu, Changhua Hu, Chuan He, Zhijie Zhou, Yushan Zhao. An Improved Non-Metric Distortion Calibration Method Based on Straight Line Characteristics[J]. Acta Optica Sinica, 2017, 37(9): 0915001
- Acta Optica Sinica
- Vol. 37, Issue 9, 0915001 (2017)
Fig. 1. Image with barrel distortion
Fig. 2. Line-fitting diagram only considering the deviation in range
Fig. 3. Camera distortion model under image coordinate system
Fig. 4. (a) Standard image for simulation; (b) distorted image for simulation; (c) image by edge-detection
Fig. 5. Distortion coefficients obtained by random experiments for 50 times when noise variance σ=1 pixel. (a) k1; (b) k2
Fig. 6. Relationship between RMSE and noise level
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Table 1. Image and data of actual experiments
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Table 2. Comparison of experimental results
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