Papers › Fast Organization of Objects' Spatial Positions in Manipulator Space from Single RGB-D Camera
Fast Organization of Objects' Spatial Positions in Manipulator Space from Single RGB-D Camera
Yangchang Sun, Minghao Yang, Jialing Li, Baohua Qiang, Jinlong Chen, Qingyu Jia
For the grasp task in physical environment, it is important for the manipulator to know the objects’ spatial positions with as few sensors as possible in real time. This work proposed an effective framework to organize the objects’ spatial positions in the manipulator 3D workspace with a single RGB-D camera robustly and fast. It mainly contains two steps: (1) a 3D reconstruction strategy for objects’ contours obtained in environment; (2) a distance-restricted outlier point elimination strategy to reduce the reconstruction errors caused by sensor noise. The first step ensures fast object extraction and 3D reconstruction from scene image, and the second step contributes to more accurate reconstructions by eliminating outlier points from initial result obtained by the first step. We validated the proposed method in a physical system containing a Kinect 2.0 RGB-D camera and a Mico2 robot. Experiments show that the proposed method can run in quasi real time on a common PC and it outperforms the traditional 3D reconstruction methods.
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