Full-automatic detection method and system for static characteristic information in dynamic image
US9323990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Oct 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/09
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to a method in the present invention, first whether an inter-frame difference for each pixel in predetermined first region and second region in the dynamic image exceeds a predetermined threshold is judged to determine whether the pixel is a static information point, and when, in the second region, pixels in regions not overlapping with the first region are determined as non-static information points, judgment on the inter-frame difference and the predetermined threshold is stopped; and then static characteristic information in the dynamic image is determined based on the static information points in the first region. Preferably, the inter-frame difference for each pixel in the first region may be re-judged based on an adjusted predetermined threshold, to further determine the static characteristic information in the dynamic image, so that static opaque static characteristic information or static characteristic information with arbitrary degrees of transparency in the dynamic image can be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.