ResearchResearch paperComputer Vision1 source · Oct 21, 2026

MS2CAST: A Video Anomaly Detection Framework via Multi-Scale Spatial Cross-Attention and Efficient Spatiotemporal Networks

Video anomaly detection (VAD) is a challenging task for surveillance systems due to the scarcity and diversity of anomalous events.

Key points

  • While semi-supervised VAD approaches have advanced the field, many rely on computationally intensive optical flow networks to capture motion dynamics.
  • Convolutional neural networks (CNNs) are also widely used for spatial encoding, but their effective receptive field is highly local.
  • To address these limitations, we introduce MS2CAST, an end-to-end semi-supervised predictive VAD framework.
  • To model spatiotemporal dynamics without optical flow estimation, we integrate two interchangeable spatiotemporal modules in the latent space.

Sources (1)

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