Fast stopping criterion for active contour algorithms
US9076223B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Aug 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20116
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device is configured to determine a contour vector that delineates an object in an image from a remaining portion of the image, and to generate a hash value by applying a hash function to the contour vector. The device is configured to compare the hash value to a previous hash value generated by applying the hash function to a previous contour vector, where the previous contour vector is determined prior to determining the contour vector. The device is configured to determine that the hash value matches the previous hash value and, based on determining that the hash value matches the previous hash value, segment the image using the contour vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.