This paper introduces a VAD method leveraging a multi-source pseudo-anomaly generator and a dual-decoder framework that integrates spatiotemporal perturbations and object-level local appearance perturbations to enhance anomaly coverage.
A unique encoder-decoder based anomaly detection framework that incorporates skip connections to preserve spatial features during reconstruction and Tanh activation in the bottleneck for a balanced latent space to improve sensitivity to fine anomalies is proposed.
Manisha Sharma, R. Purwar· Optical Memory and Neural Ne...· 0 citations
Experimental results show that the evaluation quantifies both benchmark anomaly detection and direct known-versus-unknown separation under the declared protocols, and that object prompts dominate the fused decision, while the auxiliary prompt groups do not yet contribute positively under the held-out-category protocol.
You-Xi Li, Xiang Chen, Li-Min Wang et al.· Scientific Reports· 0 citations
Qualitative and quantitative results confirm that modeling normal action semantics provides a robust and scalable solution for real-world surveillance anomaly detection.
Mahmoud Elnady, H. E. Abdelmunim· Discover Computing· 0 citations
This research introduces a novel memory-augmented CNN-ConvViT autoencoder framework for unsupervised video anomaly detection and introduces a Temporal-Aware Prototype Memory Module (TAPMM) that explicitly learns normal spatio-temporal behavior patterns.
To alleviate the model’s reliance on dominant anomalous segments, TASG-VAD introduces an Adaptive Saliency Guidance (ASG) strategy, which performs intra-video saliency ranking and dynamic masking to guide the model toward overlooked subtle anomalies.
Lihu Pan, Mingkai Hu, Lin-Liang Zhang et al.· International journal of pat...· 0 citations