Patent Details

Nelineární obrazový filtr

Registered: 16 February 2009 Approved: 30 October 2013

English title

Nonlinear image filter

Type

patent

Number

304181

Issuer

Úřad průmyslového vlastnictví, Prague, CZ

License

In order to use the result by another entity, it is always necessary to acquire a license

License Fee

The licensor requires a license fee for the result

Owner

Vysoké učení technické v Brně

Authors

Sekanina Lukáš, prof. Ing., Ph.D. (DCSY)
Vašíček Zdeněk, doc. Ing., Ph.D. (DCSY)

Keywords

image filter, nonlinear filter, digital circuit, FPGA

Description

The present invention relates to a non-linear video filter for suppressing
impulse noise of the salt and pepper type, wherein the non-linear video filter of
the present invention consists of a prefiltration circuit, which is connected to
four parallel operating non-linear filters (B1, B2, B3, B4). The output of these
non-linear filters (B1, B2, B3, B4) is connected along with a buffer (B5) output
to a selector switch (C) for selection of one of its inputs to primary output of
the entire filter wherein the individual filters (B1, B2, B3, B4) exhibit
different function to each other.