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The MOPED framework: Object recognition and pose estimation for manipulation

The Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA
The Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA
The International Journal of Robotics Research September, Vol. 30, No. 10, 1284-1306, 2011

@article{collet2011moped,

   title={The MOPED framework: Object recognition and pose estimation for manipulation},

   author={Collet, A. and Martinez, M. and Srinivasa, S.S.},

   journal={The International Journal of Robotics Research},

   volume={30},

   number={10},

   pages={1284–1306},

   year={2011},

   publisher={SAGE Publications}

}

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We present MOPED, a framework for Multiple Object Pose Estimation and Detection that seamlessly integrates single-image and multi-image object recognition and pose estimation in one optimized, robust, and scalable framework. We address two main challenges in computer vision for robotics: robust performance in complex scenes, and low latency for real-time operation. We achieve robust performance with Iterative Clustering Estimation (ICE), a novel algorithm that iteratively combines feature clustering with robust pose estimation. Feature clustering quickly partitions the scene and produces object hypotheses. The hypotheses are used to further refine the feature clusters, and the two steps iterate until convergence. ICE is easy to parallelize, and easily integrates single- and multi-camera object recognition and pose estimation. We also introduce a novel object hypothesis scoring function based on M-estimator theory, and a novel pose clustering algorithm that robustly handles recognition outliers. We achieve scalability and low latency with an improved feature matching algorithm for large databases, a GPU/CPU hybrid architecture that exploits parallelism at all levels, and an optimized resource scheduler. We provide extensive experimental results demonstrating state-of-the-art performance in terms of recognition, scalability, and latency in real-world robotic applications.
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