cs.MMJun 15, 2026

Effective and Low-cost Lane-based Map Localization for Vehicle-Centric Route Generation

Authors: Hong-Shiang LinJung-Hsin ChenYu-Luen TzengWei-Hao ChenYi-Chen LeeLi-Jhe ChenPeng-Yuan Chen

Organizations: CSIE, NTPU, Taiwan · National Taipei University

Abstract

Driver-centric route representation plays a vital role in intuitive driving guidance systems. This paper presents OLRA, a low-cost, map-localization-based framework that derives driver-view-aligned routes by matching map-based navigation routes with camera-detected lane markings. This alignment process mutually enhances vehicle localization accuracy and visual route consistency. To bridge the evaluation gap across different paradigms, we introduce practical route evaluation metrics and benchmark OLRA against OpenPilot, a representative direct-generation approach. Experimental results on the nuScenes dataset demonstrate that OLRA outperforms OpenPilot in complex road segments and in route estimation at distance beyond 20 meters, achieving lower overall Euclidean error. This study is expected to promote future research in low-cost, maplocalization-based route generation methods.

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