A Flow-Based Credibility Metric for Safety-Critical Pedestrian Detection

Published: 01 Jan 2024, Last Modified: 13 Nov 2024SAFECOMP (Workshops) 2024EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Safety is of utmost importance for perception in automated driving (AD). However, a prime safety concern in state-of-the-art object detection is that standard evaluation schemes utilize safety-agnostic metrics to argue for sufficient detection performance. Hence, it is imperative to leverage supplementary domain knowledge to accentuate safety-critical misdetections during evaluation tasks. To tackle the underspecification, this paper introduces a novel credibility metric, called c-flow, for pedestrian bounding boxes. To this end, c-flow relies on a complementary optical flow signal from image sequences and enhances the analyses of safety-critical misdetections without requiring additional labels. We implement and evaluate c-flow with a state-of-the-art pedestrian detector on a large AD dataset. Our analysis demonstrates that c-flow allows developers to identify safety-critical misdetections.
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