Zero-Shot Traffic Accident Detection via a Coarse-to-Fine VLM-Tracking Pipeline
A training-free, two-pass coarse-to-fine pipeline that pairs a frozen Qwen3-VL-32B-Instruct vision-language model with YOLO11x object detection and BoT-SORT tracking, which achieves a three-way harmonic mean score of 0.504, surpassing all organizer-published baselines including the best multi-model ensemble by a 22% re...