Method and device for processing of images using a digital filter
US8111936B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Feb 26, 2009 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Aug 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, device and a method to perform bilateral filtering using linear convolution by way of an FFT or a recursive sequence method. Proper selection of functions for the photometric and spatial components of a bilateral filter may reduce the computational cost of the bilateral filter while preserving the bilateral filter de-noising and edge detection capabilities. Such functions may reduce the computational cost of a bilateral filter to substantially O(1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.