Edge tracing with hysteresis thresholding
US8965132B2 · kind B2 · utility
3Cited by
18References
24Claims
0Family size
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Key dates
| Filing date | Mar 22, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20072
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for tracing edges of an image using hysteresis thresholding includes: (i) receiving an edge map of the image, (ii) scanning one row of the input edge map, (iii) assigning a label to each edge pixel in the row based at least in part on the presence or absence of a neighboring edge pixel, (iv) grouping contiguous labels, and (v) identifying groups of edge pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.