Efficient Cross-Country Data Acquisition Strategy for ADAS via Street-View Imagery

TL;DR

This paper introduces a street-view-guided data collection method using publicly available imagery to efficiently identify relevant locations for training ADAS perception models across different countries, reducing costs and improving adaptation.

Contribution

It proposes novel POI scoring methods leveraging vision models and a standardized evaluation protocol, enabling cost-effective cross-country data acquisition for ADAS.

Findings

Achieves comparable detection performance with half the data

Cost analysis shows large-scale street-view processing is feasible

Method effectively addresses cross-country domain shifts

Abstract

Deploying ADAS and ADS across countries remains challenging due to differences in legislation, traffic infrastructure, and visual conventions, which introduce domain shifts that degrade perception performance. Traditional cross-country data collection relies on extensive on-road driving, making it costly and inefficient to identify representative locations. To address this, we propose a street-view-guided data acquisition strategy that leverages publicly available imagery to identify places of interest (POI). Two POI scoring methods are introduced: a KNN-based feature distance approach using a vision foundation model, and a visual-attribution approach using a vision-language model. To enable repeatable evaluation, we adopt a collect-detect protocol and construct a co-located dataset by pairing the Zenseact Open Dataset with Mapillary street-view images. Experiments on traffic sign detection, a task particularly sensitive to cross-country variations in sign appearance, show that our approach achieves performance comparable to random sampling while using only half of the target-domain data. We further provide cost estimations for full-country analysis, demonstrating that large-scale street-view processing remains economically feasible. These results highlight the potential of street-view-guided data acquisition for efficient and cost-effective cross-country model adaptation.