Enhancing Vectorized Map Perception with Historical Rasterized Maps

• URL: http://arxiv.org/abs/2409.00620v1
• Date: Sun, 1 Sep 2024 05:22:33 GMT
• Title: Enhancing Vectorized Map Perception with Historical Rasterized Maps
• Authors: Xiaoyu Zhang, Guangwei Liu, Zihao Liu, Ningyi Xu, Yunhui Liu, Ji Zhao,
• Abstract summary: We propose HRMapNet, leveraging a low-cost Historical Rasterized Map to enhance online vectorized map perception. The historicalized map can be easily constructed from past predicted vectorized results and provides valuable complementary information. HRMapNet can be integrated with most online vectorized map perception methods.
• Score: 37.48510990922406
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In autonomous driving, there is growing interest in end-to-end online vectorized map perception in bird's-eye-view (BEV) space, with an expectation that it could replace traditional high-cost offline high-definition (HD) maps. However, the accuracy and robustness of these methods can be easily compromised in challenging conditions, such as occlusion or adverse weather, when relying only on onboard sensors. In this paper, we propose HRMapNet, leveraging a low-cost Historical Rasterized Map to enhance online vectorized map perception. The historical rasterized map can be easily constructed from past predicted vectorized results and provides valuable complementary information. To fully exploit a historical map, we propose two novel modules to enhance BEV features and map element queries. For BEV features, we employ a feature aggregation module to encode features from both onboard images and the historical map. For map element queries, we design a query initialization module to endow queries with priors from the historical map. The two modules contribute to leveraging map information in online perception. Our HRMapNet can be integrated with most online vectorized map perception methods. We integrate it in two state-of-the-art methods, significantly improving their performance on both the nuScenes and Argoverse 2 datasets. The source code is released at https://github.com/HXMap/HRMapNet.

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