Optimisation of the PointPillars network for 3D object detection in point clouds

2020-07-01 · Joanna Stanisz, Konrad Lis, Tomasz Kryjak, Marek Gorgon

In this paper we present our research on the optimisation of a deep neural network for 3D object detection in a point cloud. Techniques like quantisation and pruning available in the Brevitas and PyTorch tools were used. We performed the experiments for the PointPillars network, which offers a reasonable compromise between detection accuracy and calculation complexity. The aim of this work was to propose a variant of the network which we will ultimately implement in an FPGA device. This will allow for real-time LiDAR data processing with low energy consumption. The obtained results indicate that even a significant quantisation from 32-bit floating point to 2-bit integer in the main part of the algorithm, results in 5%-9% decrease of the detection accuracy, while allowing for almost a 16-fold reduction in size of the model.

📄 PDF Abstract BibTeX arXiv:2007.00493

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3D Object Detection object-detection Object Detection

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