Edge detection in a video field
US8891018B1 · kind B1 · utility
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1References
13Claims
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Key dates
| Filing date | Aug 28, 2013 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Aug 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0142
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for detecting edges in a video field, comprising the steps of: selecting edges for a pixel of the video field; determining sum of absolute differences (“SAD”) values for the selected edges; determining inverse SAD (“ISAD”) values for the selected edges; and detecting one or more certain ones of the selected edges as a valid edge as a function of the determined SAD values and the determined ISAD values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.