激光与光电子学进展, 2019, 56 (11): 111505, 网络出版: 2019-06-13
复杂环境下基于深度神经网络的摄像机标定 下载: 1472次
Camera Calibration Based on Deep Neural Network in Complex Environments
机器视觉 摄像机标定 深度神经网络 修正线性单元 自适应矩估计 machine vision camera calibration deep neural network rectified linear unit adaptive moment estimation
摘要
提出一种基于深度神经网络的摄像机标定方法,实现了复杂环境下平面区域内的灵活、高精度标定。无需进行数据特征提取或分类,仅通过优化网络结构、超参数与训练算法,深度神经网络便能得到快速有效的训练。实验结果表明,相较于张正友标定法与浅层神经网络标定法,该方法在大范围、多拍摄角度和高畸变条件下均能达到更高的标定精度,镜头存在高畸变时,633 mm×763 mm标定范围内的平均标定误差仅为0.1471 mm。
Abstract
This study proposes a new deep neural network based camera calibration method that achieves flexible, high-precision calibration in complex environments, without having to classify or extract features from input data. By optimizing the network structure, hyperparameters, and training algorithms, the deep neural network can be quickly and effectively trained. The experimental results confirm that, compared with Zhang's calibration method and the shallow neural network, the proposed method can achieve high calibration accuracy under a wide range of imaging conditions involving multiple shooting angles or high distortion. For the images produced using a highly distorted lens, the proposed method achieves an average calibration error of only 0.1471 mm over the calibration range of 633 mm×763 mm.
向鹏, 周宾, 祝仰坤, 贺文凯, 岳晓庚, 陶依贝. 复杂环境下基于深度神经网络的摄像机标定[J]. 激光与光电子学进展, 2019, 56(11): 111505. Peng Xiang, Bin Zhou, Yangkun Zhu, Wenkai He, Xiaogeng Yue, Yibei Tao. Camera Calibration Based on Deep Neural Network in Complex Environments[J]. Laser & Optoelectronics Progress, 2019, 56(11): 111505.