针对无扫描激光三维传感器成像分辨率较低、标定精度不高的问题，提出了一种基于双线性插值的低分辨率传感器标定方法。首先运用双线性插值算法，对低分辨率传感器所成图像进行升采样以提高图像分辨率，然后利用基于OpenCV标定算法对其进行标定，最后将标定结果与传统方法标定结果进行分析比较。实验结果表明，该方法能够将低分辨率传感器参数的标定误差缩小近1/2。运用双线性插值算法提高图像分辨率，可以提高对低分辨率传感器的标定精度。

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.