Method of motion detection using adaptive threshold
US8077926B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of motion detection using an adaptive threshold, adaptive for determining whether a plurality of target pixels in a current scan line are moving pixels or not, is provided. First, a first threshold is given for determining whether the target pixels in the current scan line are moving pixels. Then, a number of moving pixels in a previous scan line of the current scan line is calculated and determined whether larger than a second threshold. If the number of moving pixels is larger than the second threshold, the first threshold is adjusted by a decrement, and then whether the target pixels in the current scan line are moving pixels is determined by using the adjusted first threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.