Transformer-based anomaly detection apparatus and method therefor
US12158361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2023 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Jul 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/17
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A transformer-based anomaly detection apparatus includes: an encoder unit including n encoding blocks having a pyramid structure, and extracting respective multi-scale feature maps having the pyramid structure through respective encoding blocks; a spatio-temporal transformer unit having n spatio-temporal transformers, and generating each multi-scale spatio-temporal attention map in which a temporal feature and a spatial feature for the feature map extracted from each encoding block are emphasized through each spatio-temporal transformer; and a decoder unit including n decoders having a reverse pyramid structure, and generating a prediction frame by using outputs of the multi-scale spatio-temporal attention map and a previous layer decoder through n decoders, and an abnormal event is detected by using the prediction frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.