MAGRIT Team, INRIA/LORIA, 54600 Nancy, France.
Faculty of Computing and Informatics, Multimedia University, 63100 Cyberjaya, Selangor, Malaysia.
Sensors (Basel). 2020 May 27;20(11):3045. doi: 10.3390/s20113045.
Collecting correlated scene images and camera poses is an essential step towards learning absolute camera pose regression models. While the acquisition of such data in living environments is relatively easy by following regular roads and paths, it is still a challenging task in constricted industrial environments. This is because industrial objects have varied sizes and inspections are usually carried out with non-constant motions. As a result, regression models are more sensitive to scene images with respect to viewpoints and distances. Motivated by this, we present a simple but efficient camera pose data collection method, WatchPose, to improve the generalization and robustness of camera pose regression models. Specifically, WatchPose tracks nested markers and visualizes viewpoints in an Augmented Reality- (AR) based manner to properly guide users to collect training data from broader camera-object distances and more diverse views around the objects. Experiments show that WatchPose can effectively improve the accuracy of existing camera pose regression models compared to the traditional data acquisition method. We also introduce a new dataset, Industrial10, to encourage the community to adapt camera pose regression methods for more complex environments.
采集相关场景图像和相机位姿是学习绝对相机位姿回归模型的重要步骤。虽然在生活环境中通过遵循常规道路和路径相对容易地获取此类数据,但在狭窄的工业环境中仍然是一项具有挑战性的任务。这是因为工业对象的大小不一,并且检查通常采用非恒定的运动进行。因此,回归模型对于视角和距离的场景图像更加敏感。受此启发,我们提出了一种简单但高效的相机位姿数据采集方法 WatchPose,以提高相机位姿回归模型的泛化和鲁棒性。具体来说,WatchPose 跟踪嵌套标记,并以基于增强现实 (AR) 的方式可视化视点,以正确引导用户从更宽的相机-对象距离和对象周围更多样化的视角采集训练数据。实验表明,与传统的数据采集方法相比,WatchPose 可以有效地提高现有相机位姿回归模型的准确性。我们还引入了一个新的数据集 Industrial10,以鼓励社区为更复杂的环境采用相机位姿回归方法。