Hough transform method for linear ribbon and circular ring detection in the gradient domain
US8320670B1 · kind B1 · utility
6Cited by
9References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/48
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for converting a portion of an image from a first domain to a second domain. The method may apply a Hough transform on the converted portion of the image, including calculating a range of angles for each tested pixel q relative to a center pixel p, quantizing the range of angles into a plurality of bins, voting each tested pixel q using a range of bins using a weighted voting schema; and detecting one or more features in the portion of the image. The methods may be implemented by program instructions executing in parallel on CPU(s) or GPUs.
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