Verfahren und Vorrichtung zur Rauschverminderung in einem Teil eines Bildes

Details

Veröffentlichungs-Nr.

EP3203439

Aktenzeichen

EP17153730

Anmeldetag

30. Januar 2017

Veröffentlichung

2. Oktober 2019

Erteilung

2. Oktober 2019

Rechtsraum

EP

IPC

G06T5/00

Abstract

The present principles relates to a method and a device for reducing noise in a component (C) of a picture, characterized in that the method comprises: - obtaining (100) a low-pass filtered component (Cf) by low-pass filtering said component (C) of the picture; - for a current pixel (i) in said component of the picture: - for at least one current neighboring pixel (j) of the current pixel (i), computing (110) a distance (D1), relative to the current neighboring pixel (j), between the value (Cf(i)) of the current pixel in the low-pass filtered component and the value (Cf(j)) of the current neighboring pixel (j) in the low-pass filtered component; - when the distances relative to said at least one neighboring pixels of the current pixel are lower than a first threshold (TH1) (120), modifying (130) the value (C(i)) of the current pixel in said component of the picture according to a linear combination of the value (C(i)) of the current pixel in said component of the picture and the value (Cf(i)) of the current pixel in the low-pass filtered component, - otherwise the value of the current pixel in said at least one component of the picture remains unchanged.

Anmelder

Firmen

InterDigital VC Holdings, Inc.
Thomson Licensing

Land

🇺🇸 USA

Fachgebiete