Image processing method
US10783658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2018 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Dec 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/467
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of processing an image including pixels distributed in cells and in blocks is disclosed, the method including the steps of: a) for each cell, generating n first intensity values of gradients having different orientations, each first value being a weighted sum of the values of the pixels of the cell; b) for each cell, determining a main gradient orientation of the cell and a second value representative of the intensity of the gradient in the main orientation; c) for each block, generating a descriptor of n values respectively corresponding, for each of the n gradient orientations, to the sum of the second values of the cells of the block having the gradient orientation considered as the main gradient orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.