Image labeling using multi-scale processing
US8213726B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Aug 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/2504
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Multi-scale processing may be used to reduce the memory and computational requirements of optimization algorithms for image labeling, for example, for object segmentation, 3D reconstruction, stereo correspondence, optical flow and other applications. For example, in order to label a large image (or 3D volume) a multi-scale process first solves the problem at a low resolution, obtaining a coarse labeling of an original high resolution problem. This labeling is refined by solving another optimization on a subset of the image elements. In examples, an energy function for a coarse level version of an input image is formed directly from an energy function of the input image. In examples, the subset of image elements may be selected using a measure of confidence in the labeling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.