Formation of a time-varying signal representative of at least variations in a value based on pixel values
US9025826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Oct 3, 2033 |
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 test variations in a value based on pixel values from a sequence of images, the signal corresponding in length to the sequence of images, includes 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 using at least one of a different aperture and a different interval length for groups defined on different intervals of the sequence. Groups of sub-sets are selected to form the signal to cover different intervals of the sequence of images by obtaining spatio-temporal volumes of pixel values from a sequence of images at least based on the received sequence of images. Each volume includes pixel values within a spatial aperture from each image within an interval of the sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.