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1. WO1998018256 - NOISE FILTERING

Publication Number WO/1998/018256
Publication Date 30.04.1998
International Application No. PCT/IB1997/001167
International Filing Date 26.09.1997
IPC
H04N 5/21 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
14Picture signal circuitry for video frequency region
21Circuitry for suppressing or minimising disturbance, e.g. moire or halo
H04N 5/44 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
44Receiver circuitry
CPC
H04N 5/21
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
14Picture signal circuitry for video frequency region
21Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
H04N 5/44
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
44Receiver circuitry ; for the reception of television signals according to analogue transmission standards;
Applicants
  • PHILIPS ELECTRONICS N.V. [NL]/[NL]
  • PHILIPS NORDEN AB [SE]/[SE] (SE)
Inventors
  • DE HAAN, Gerard
  • SNIJDER, Pieter, Jacob
Agents
  • STEENBEEK, Leonardus, J.
Priority Data
96202965.824.10.1996EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NOISE FILTERING
(FR) FILTRAGE DU BRUIT
Abstract
(EN)
In a motion-dependent noise filtering (MD, NRF), a received image signal and a delayed (3) image signal are combined (1) in dependence upon both (25) a local amount of motion (5-13) and a global amount of motion (5, 21, 23) in the image signal.
(FR)
Dans un filtrage du bruit dépendant du mouvement (détecteur de mouvement, filtre réducteur de bruit), un signal d'image reçu et un signal d'image temporisé (3) sont combinés (1) en fonction, tant (25) d'une valeur locale de mouvement (5-13), que d'une valeur globale de mouvement (5, 21, 23) dans le signal d'image.
Also published as
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