The goal is to find one or more instances of one or more known objects in a scene captured by a 3D sensor.
The main difficulty of 3D registration is to guarantee fast cycle times while preserving robustness of the process. Indeed, in an industrial context where each mistake stops a whole production chain, reliabilities higher than 99% may be required. The high noise level of 3D sensors as well as the physical characteristics of industrial objects (no texture, specularities, …) make reaching the required robustness especially hard.
In order to tacke the problem, CEA implemented an algorithmic chain based on a new local shape descriptor as well as a multi-dimensional pose analysis, with multiple patents pending. This algorithmic chain is GPU accelerated to guarantee optimal cycle times.
This solution is industrially deployed by our partner TRIDIMEO.
Current developments focus on mostly symmetric objects as well as integration with smart pluridigital robotic prehension.
Computation time improvements relative to existing approaches for various point cloud sizes