arXiv Computer Vision By Xiaokai Song, Zhang Li, Leqi Liu, Yibin Ye, Kun Wang, Xichao Teng

Selective Event Evidence and Persistent Temporal Priors for Event-Based Point Tracking

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Selective Event Evidence and Persistent Temporal Priors (SEPT) is an event‑only framework designed to track points over long sequences by selectively weighting informative event evidence and maintaining trajectory constraints across overlapping temporal windows. It introduces Task‑Adaptive Event Evidence Modulation (TEEM), which learns a reliability field to weight the event tensor before feature extraction, and Persistent Trajectory Prior (PTP), which propagates geometric information using a local quadratic trajectory model with visibility‑aware corrections. Trained solely on synthetic EventKubric data, SEPT outperforms the retrained ETAP baseline and several event‑plus‑frame methods on multiple TAP and feature‑tracking datasets, with source code publicly available.

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