Mind the map! Accounting for existing map information when estimating online HDMaps from sensor

• URL: http://arxiv.org/abs/2311.10517v2
• Date: Thu, 14 Mar 2024 15:09:08 GMT
• Title: Mind the map! Accounting for existing map information when estimating online HDMaps from sensor
• Authors: Rémy Sun, Li Yang, Diane Lingrand, Frédéric Precioso,
• Abstract summary: Estimating HDMaps from sensors promises to significantly lighten costs. We propose to account for existing maps of the precise situation studied when estimating HDMaps. We introduce MapEX, a novel online HDMap estimation framework.
• Score: 15.275704436439012
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: While HDMaps are a crucial component of autonomous driving, they are expensive to acquire and maintain. Estimating these maps from sensors therefore promises to significantly lighten costs. These estimations however overlook existing HDMaps, with current methods at most geolocalizing low quality maps or considering a general database of known maps. In this paper, we propose to account for existing maps of the precise situation studied when estimating HDMaps. We identify 3 reasonable types of useful existing maps (minimalist, noisy, and outdated). We also introduce MapEX, a novel online HDMap estimation framework that accounts for existing maps. MapEX achieves this by encoding map elements into query tokens and by refining the matching algorithm used to train classic query based map estimation models. We demonstrate that MapEX brings significant improvements on the nuScenes dataset. For instance, MapEX - given noisy maps - improves by 38% over the MapTRv2 detector it is based on and by 8% over the current SOTA.

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