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Luca Zanella

3 accepted papers

2025

Can Text-to-Video Generation help Video-Language Alignment?

CVPR 2025poster

Recent video-language alignment models are trained on sets of videos, each with an associated positive caption and a negative caption generated by large language models. A problem with this procedure is that negative captions may introduce linguistic biases, i.e., concepts are seen only as negatives…

Cited by 0SourcePDFScholar
2025

Training-free Online Video Step Grounding

NeurIPS 2025poster

Given a task and a set of steps composing it, Video Step Grounding (VSG) aims to detect which steps are performed in a video. Standard approaches for this task require a labeled training set (e.g., with step-level annotations or narrations), which may be costly to collect. Moreover, they process the…

Cited by 0SourceScholar
2024

Harnessing Large Language Models for Training-free Video Anomaly Detection

CVPR 2024poster

Video anomaly detection (VAD) aims to temporally locate abnormal events in a video. Existing works mostly rely on training deep models to learn the distribution of normality with either video-level supervision one-class supervision or in an unsupervised setting. Training-based methods are prone to b…

Cited by 40SourcePDFScholar