Webpage categorization based on image classification of webpage screen capture
US12361680B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2024 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Aug 15, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A network security system that classifies webpages and uses the classification of the webpages to enforce relevant security policies is disclosed. To classify a webpage, a screenshot of at least a portion of the webpage is captured. An embedding engine generates a subject image embedding of the screenshot. The subject image embedding is classified by an image classifier that includes an index of training image embeddings each having a label of their classification and an associated approximate nearest neighbors model trained to identify the label of the closest training image embedding to the subject image embedding and a score representing their similarity. The webpage is classified based at least in part on the score and the label from the image classifier. The network security system applies security policies to requests from client devices that identify the webpage as its destination based at least in part on the webpage classification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.