Techniques for extracting links and connectivity from schematic diagrams
US12406519B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2022 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Dec 29, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/414
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In example embodiments, techniques are provided for using a combination of multiple ML models and signal processing to extract links and connectivity from a schematic diagram in an image-only format. A first ML model (i.e. link segmenter) may produce a first set of predictions about the positions of link segments in the schematic diagram (e.g., in the form of a segmentation map). A second ML model (i.e. keypoint detector) may produce a second set of predictions about starting and stopping points of link segments in the schematic diagram (e.g., in the form of one or more heatmaps). A signal processing module may combine the first set of predictions and the second set of predictions to produce a description of links and connectivity they provide (e.g., combining the segmentation map with data from the one or more heatmaps). The results of the combining may be saved as a graph connectivity matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.