Laser & Optoelectronics Progress, Volume. 50, Issue 7, 71501(2013)
Calibration Method of Low-Resolution Sensor Based on Bilinear Interpolation Strategy
For non-scanning laser three-dimensional (3D) imaging sensors, the imaging resolution is low and the calibration accuracy is not high. In order to solve this problem, a low-resolution sensor calibration method based on bilinear interpolation is proposed.Firstly, a resampling strategy based on the bilinear interpolation algorithm is used to improve the image resolution. Then calibration algorithm based on OpenCV is adopted. Finally the calibration results are compared with those obtained by the traditional calibration method. Experimental results show that the calibration error is reduced by nearly 1/2. The proposed calibration method based on bilinear interpolation algorithm can improve the calibration accuracy of low-resolution sensor.
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Cheng Xiangzheng, Zeng Zhaoyang, Chen Hang, Huang Chao. Calibration Method of Low-Resolution Sensor Based on Bilinear Interpolation Strategy[J]. Laser & Optoelectronics Progress, 2013, 50(7): 71501
Category: Machine Vision
Received: Jan. 31, 2013
Accepted: --
Published Online: May. 31, 2013
The Author Email: Xiangzheng Cheng (846248088@qq.com)