Journal
COMPUTERS AND ELECTRONICS IN AGRICULTURE
Volume 180, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compag.2020.105929
Keywords
Point cloud registration; RGB-D sensor; Food production; Graphics Processing Unit (GPU) registration; Automation
Funding
- Research Council of Norway [255596, 299757]
- NTNU
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The study introduces an efficient 3D registration algorithm based on ICP for eye-in-hand configuration using an RGB-D camera, with faster GPU implementation and high resolution. Results indicate that the point-to-plane linear least squares optimizer provides the best performance in terms of accuracy and efficiency.
If we are to develop robust robot-based automation in primary production and processing in the agriculture and ocean space sectors, we have to develop solid vision-based perception for the robots. Accurate vision-based perception requires fast 3D reconstruction of the object in order to extract the geometrical features necessary for robotic manipulation. To this end, we present an accurate, real-time and high-resolution ICP-based 3D registration algorithm for eye-in-hand configuration using an RBG-D camera. Our 3D reconstruction, via an efficient GPU implementation, is up to 33 times faster than a similar CPU implementation, and up to eight times faster than a similar library implementation, resulting in point clouds of 1 mm resolution. The comparison of our 3D reconstruction with other ICP-based baselines, through trajectories from 3D registration and reference trajectories for an eye-in-hand configuration, shows that the point-to-plane linear least squares optimizer gives the best results, both in terms of precision and performance. Our method is validated for the eye-in-hand robotic scanning and 3D reconstruction of some representative examples of food items and produce of agricultural and marine origin.
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