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Title:
MULTI-EXPOSURE IMAGE FUSION METHOD AND SYSTEM BASED ON IMAGE REGION VALIDITY
Document Type and Number:
WIPO Patent Application WO/2024/094222
Kind Code:
A1
Abstract:
The present invention relates to the technical field of image processing. Disclosed are a multi-exposure image fusion method and system based on image region validity. The method comprises: first acquiring a plurality of raw images of different exposures, and normalizing same; calculating a current noise level on the basis of the plurality of normalized raw images of different exposures; on the basis of the current noise level, acquiring validity graphs corresponding to the raw images; calculating corresponding weight graphs on the basis of the validity graphs corresponding to the raw images; and fusing the raw images according to the corresponding weight graphs to obtain a fused image. According to the present invention, during multi-exposure image fusion, the amount of calculation is small, the real-time performance is good, the fusion effect is better, and the influence during image signal processing can be reduced.

Inventors:
LIN JINGZHOU (CN)
GUO QIFENG (CN)
ZHANG QINING (CN)
Application Number:
PCT/CN2023/137047
Publication Date:
May 10, 2024
Filing Date:
December 07, 2023
Export Citation:
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Assignee:
SHENZHENSHENZHI WEILAICO LTD (CN)
International Classes:
G06T5/50; G06T3/40
Foreign References:
CN115409754A2022-11-29
CN115170416A2022-10-11
CN112785534A2021-05-11
CN114187192A2022-03-15
US20220020126A12022-01-20
Other References:
WEIZHONG LI: "Detail Preserving Multi-Exposure Image Fusion", OPTICS AND PRECISION ENGINEERING, ZHONGGUO KEXUEYUAN CHANGCHUN JINGMI JIXIE YANJIUSUO, CHANGCHUN, CN, vol. 24, no. 9, 15 September 2016 (2016-09-15), CN , pages 2283 - 2292, XP093168808, ISSN: 1004-924X, DOI: 10.3788/OPE.20162409.2283
Attorney, Agent or Firm:
BEIJING AUGUST MELON INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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