Formation of a time-varying signal representative of at least variations in a value based on pixel values
US8553940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Oct 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of forming a time-varying signal representative of at least variations in a value based on pixel values from a sequence of images, the signal corresponding in length to the sequence of images, the method includes acts of obtaining the sequence of images. A plurality of groups of sub-sets of pixel values are formed by selecting a sub-set of at least one pixel value from each of at least two images defining an interval to form a group of associated sub-sets. For any pair of groups with only sub-sets from the same images, the sub-sets from more than one image are different. Groups of sub-sets are selected to form the signal in accordance with at least one selection criterion. The selected groups of sub-sets cover different intervals, shorter than a length of the sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.