Deep Learning-Based Road Lane Quality Assessment from Egocentric Dashcam Video
The authors developed a baseline framework and a geo-referenced smartphone dashcam dataset containing 63,839 frames from South Texas to automate lane-marking quality evaluations. The approach introduces three specific quality metrics: Contrast Stability Index ($R^2=0.97$), Line Continuity Ratio ($R^2=0.84$), and Regression Lane Confidence Score based on 3,339 OpenStreetMap-matched frames. In a pilot test of 50 images, these metrics achieved stronger rank correlation with human quality ratings (Spearman's $\rho=0.7316$ for continuity) than standard image-quality algorithms.
Why it matters — Road infrastructure monitoring can shift from manual field inspections to automated, low-cost video surveys using metrics specifically tailored to lane visibility and map consistency rather than general image metrics.
Caveat: Human validation of the proposed quality metrics relies on a small pilot sample of 50 ranked images within a single geographic region.