Techniken zum Hochskalieren von Bildern, die mit Unbestimmten Abwärtsskalierungskernen Erzeugt Werden

Details

Veröffentlichungs-Nr.

EP3779863

Aktenzeichen

EP20189699

Anmeldetag

5. August 2020

Veröffentlichung

27. April 2022

Erteilung

27. April 2022

Rechtsraum

EP

IPC

G06T3/40

Abstract

A scaling application estimates a downscaling kernel used to generate a downscaled image. The scaling application upscales the downscaled image based on the estimated downscaling kernel, thereby generating a higher resolution version of the downscaled image with minimal visual artifacts. The scaling application includes various networks that perform the above operations. A kernel mapping network generates a degradation map based on the estimated downscaling kernel. A degradation-aware generator network generates a reconstructed image based on the downscaled image and the degradation map. A kernel discriminator network generates an image delta that reflects visual artifacts present in the reconstructed image. The scaling application includes a parameter optimizer that iteratively modifies the estimated downscaling kernel to reduce visual artifacts indicated in the image delta. Via one or more iterations, the scaling application generates a reasonably accurate estimation of the downscaling kernel and can then upscale the downscaled image with reduced visual artifacts.

Anmelder

Firmen

Disney Enterprises, Inc.
ETH Zürich (Eidgenössische Technische Hochschule Zürich)

Land

🇺🇸 USA

Fachgebiete