HEAD: A Bandwidth-Efficient Cooperative Perception Approach for Heterogeneous Connected and Autonomous Vehicles

• URL: http://arxiv.org/abs/2408.15428v1
• Date: Tue, 27 Aug 2024 22:05:44 GMT
• Title: HEAD: A Bandwidth-Efficient Cooperative Perception Approach for Heterogeneous Connected and Autonomous Vehicles
• Authors: Deyuan Qu, Qi Chen, Yongqi Zhu, Yihao Zhu, Sergei S. Avedisov, Song Fu, Qing Yang,
• Abstract summary: HEAD is a method that fuses features from the classification and regression heads in 3D object detection networks. Our experiments demonstrate that HEAD is a fusion method that effectively balances communication bandwidth and perception performance.
• Score: 9.10239345027499
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In cooperative perception studies, there is often a trade-off between communication bandwidth and perception performance. While current feature fusion solutions are known for their excellent object detection performance, transmitting the entire sets of intermediate feature maps requires substantial bandwidth. Furthermore, these fusion approaches are typically limited to vehicles that use identical detection models. Our goal is to develop a solution that supports cooperative perception across vehicles equipped with different modalities of sensors. This method aims to deliver improved perception performance compared to late fusion techniques, while achieving precision similar to the state-of-art intermediate fusion, but requires an order of magnitude less bandwidth. We propose HEAD, a method that fuses features from the classification and regression heads in 3D object detection networks. Our method is compatible with heterogeneous detection networks such as LiDAR PointPillars, SECOND, VoxelNet, and camera Bird's-eye View (BEV) Encoder. Given the naturally smaller feature size in the detection heads, we design a self-attention mechanism to fuse the classification head and a complementary feature fusion layer to fuse the regression head. Our experiments, comprehensively evaluated on the V2V4Real and OPV2V datasets, demonstrate that HEAD is a fusion method that effectively balances communication bandwidth and perception performance.

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