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Ding, Fangqiang (author), Palffy, A. (author), Gavrila, D. (author), Lu, Chris Xiaoxuan (author)This work proposes a novel approach to 4D radar-based scene flow estimation via cross-modal learning. Our approach is motivated by the co-located sensing redundancy in modern autonomous vehicles. Such redundancy implicitly provides various forms of supervision cues to the radar scene flow estimation. Specifically, we introduce a multi-task model...conference paper 2023