Method and apparatus for processing line pattern using convolution kernel
US7657099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2006 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Jan 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/36
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for processing a line pattern using a convolution kernel. An apparatus for processing a line pattern, the apparatus including a light source module radiating predetermined light and a camera module capturing an image of an object, onto which the light is radiated, the apparatus processing a line pattern included in the captured image, includes: a kernel learning unit determining a kernel shape and an optimal threshold value with respect to each vertical interval of the image using a simple line pattern formed at a predetermined location; a convolution application unit applying convolution to a captured test image using the determined kernel shape and optimal threshold value; and a region selection unit scanning each pixel column in the image, to which the convolution is applied, in a vertical direction, and setting pixel values of pixel groups other than a selected pixel group to 0 when a plurality of pixel groups having pixel values other than 0 exists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.