WO2023070582 - A DEVICE AND METHOD FOR NOISE-ADAPTIVE HIGH DYNAMIC RANGE IMAGE PROCESSING
National phase entry:
Publication Number
WO/2023/070582
Publication Date
04.05.2023
International Application No.
PCT/CN2021/127673
International Filing Date
29.10.2021
Title **
[English]
A DEVICE AND METHOD FOR NOISE-ADAPTIVE HIGH DYNAMIC RANGE IMAGE PROCESSING
[French]
DISPOSITIF ET PROCÉDÉ DE TRAITEMENT D'IMAGE À PLAGE DYNAMIQUE ÉLEVÉE ET ADAPTATIFS AU BRUIT
Applicants **
HUAWEI TECHNOLOGIES CO.,LTD.
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
Inventors
CHEN, Hu
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
YU, Quanhe
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
XU, Weiwei
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
Application details
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| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
CNIPA
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1031 | |
| EPO | Filing, Examination | 6330 | |
| Japan | Filing | 588 | |
| South Korea | Filing | 482 | |
| USA | Filing, Examination | 2710 |
Total: 11141 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A device (200) and method (600) for noise-adaptive high dynamic range image processing are able to determine a plurality of image blocks (202) of the HDR image (201) (601), wherein each image block (202) comprises a plurality of pixels. Further, the device (200) and method (600) are able to determine a local contrast value (203) of the image block (202) of the HDR image (201) (602), and to add random noise (204) depending on the local contrast value (203) of the image block (202) (603). The device (200) and method (600) are thus able to adaptively add random noise (204) block-by-block to the image blocks (202) of the HDR image (201) according to their local contrast values (203).[French]
L'invention concerne un dispositif (200) et un procédé (600) pour un traitement d'image à plage dynamique élevée, adaptatifs au bruit, qui sont aptes à déterminer une pluralité de blocs d'image (202) de l'image HDR (201) (601), chaque bloc d'image (202) comprenant une pluralité de pixels. En outre, le dispositif (200) et un procédé (600) sont capables de déterminer une valeur de contraste locale (203) du bloc d'image (202) de l'image HDR (201), et pour ajouter du bruit aléatoire (204) en fonction de la valeur de contraste locale (203) du bloc d'image (202). Le dispositif (200) et le procédé (600) sont ainsi capables d'ajouter de manière adaptative du bruit aléatoire (204) bloc par bloc aux blocs d'image (202) de l'image HDR (201) en fonction de leurs valeurs de contraste locales (203).