Computer implemented system and method for recognizing and counting products within images
US10510038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2016 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Sep 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The system and method for recognizing and counting products within images is disclosed. The products are recognized by carrying out a nearest-neighbor search in the template feature space using a k-d tree and the product count is then obtained by using a maximum feature repeatability index for each identified feature. The system also obtains product arrangement by fitting bounding boxes around each identified product. The count of boxes thus obtained may also provide the exact number of discrete products visible in an image. A second stage of grid-based search is also carried out in the neighborhood of each detected product to detect new products that might have been missed out in the previous step. This detection is based on a confidence measure including information like histogram matching and spatial location of products. This system is also useful in verifying planogram compliance for a given product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.