Radiometrische Kompensation für Zeitliche Rauschverminderung in Videos

Details

Veröffentlichungs-Nr.

EP4797199

Anmeldetag

27. November 2025

Veröffentlichung

26. August 2026

Rechtsraum

EP

IPC

G06T5/50, G06T5/70

Abstract

Systems and methods for providing a temporal noise reducer (TNR) architecture that improves TNR performance by adjusting for lighting differences between image frames. Temporal noise reduction is a core feature of a video processing pipeline, where TNR can be used to decrease noise in video streams. Some TNRs compensate for the motion of objects between frames, but lighting changes can also lead to additional noise. As an object's position moves from frame to frame, the lighting of the object may change. A lightweight tone-mapping and color-correction operator is added to the TNR feedback loop, matching the radiometric properties of a TNR reference frame to the radiometric properties of the current frame to compensate for radiometric differences, thereby increasing the effectiveness of TNR in handling incremental lighting changes and speeding up its response to abrupt lighting changes.

Anmelder

Firma

INTEL Corporation

Land

🇺🇸 USA

Fachgebiete