Patent · US Active

Adaptive image enhancement using inter-channel correlation information

US12047613B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Kai Cui · Beijing, CN
Atanas Boev · Munich, DE
Elena Alshina · Munich, DE
Eckehard Steinbach · Munich, DE

Key dates

Filing date	Dec 12, 2022
Grant date	Jul 23, 2024
Priority date	—
Expiry date	Dec 12, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/85
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The present disclosure relates to image modification such as an image enhancement. The image enhancement may be applied for any image modification and it may be applied during or after image encoding and/or decoding, e.g. as a loop filter or a post filter. In particular, the image modification includes a multi-channel processing in which a primary channel is processed separately and secondary channels are processed based on the processed primary channel. The processing is based on a neural network. In order to enhance the image modification performance, prior to applying the modification, the image channels are analyzed and a primary channel and the secondary channels are determined, which may vary for multiples of images, images or image areas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.