Recursive median filtering
US4928258A · kind A · utility
18Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1989 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | May 8, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0263
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This technique involves digitally filtering data by determining the median of data values instead of mean or some other algebraic combination. It is unique in that the data used for the median calculation utilizes previous as well as the new data. This filter structure can be used in both time domain and spatial domain. Also, the filter size can easily be varied to permit adapting its size to system gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.