Median filter for image processing
US9031349B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2013 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Oct 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20032
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device determines multiple sets of parameter values associated with an array of pixels to be used to process an image. Each set of parameter values corresponds to a set of pixels, included in the array, that are aligned along a first dimension of the array. The device determines a set of median values corresponding to each of the multiple sets of parameter values. The device determines a median of medians value that is a median of the set of median values. The device excludes a portion of parameter values, included in the multiple sets of parameter values, from a comparison set used to determine an overall median value, and determines a first median parameter value of the comparison set. The device determines the overall median value based on comparing the first median parameter value and the median of medians value, and provides the overall median value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.