Title:
ELECTRONIC DEVICE FOR REMOVING BACKGROUND NOISE ON BASIS OF SPATIAL FREQUENCY, AND IMAGE SIGNAL PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/056944
Kind Code:
A1
Abstract:
Disclosed are an electronic device for removing background noise on the basis of spatial frequency, and an image signal processing method. The electronic device comprises at least an image sensor and a processor, wherein the image sensor senses an image of an object; and the processor executes the following image signal processing actions: receiving a composite image generated by the image sensor; converting the composite image from a spatial domain into a frequency domain to obtain a composite frequency domain component; deducting, from the composite frequency domain component, a background component corresponding to a frequency domain noise position in order to obtain a clear frequency domain component that represents an image signal; and carrying out subsequent processing according to the clear frequency domain component in order to generate an image signal for an electronic device to apply same.
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Inventors:
CHENG YU-KUO (CN)
Application Number:
PCT/CN2020/073706
Publication Date:
April 01, 2021
Filing Date:
January 22, 2020
Export Citation:
Assignee:
EGIS TECH INC (CN)
CHENG YU KUO (CN)
CHENG YU KUO (CN)
International Classes:
G06F3/041; G06K9/62; G06K9/00; G06K9/80
Foreign References:
| CN108875544A | 2018-11-23 | |||
| CN108875544A | 2018-11-23 | |||
| CN107454963A | 2017-12-08 | |||
| CN104376321A | 2015-02-25 | |||
| JPH07160869A | 1995-06-23 | |||
| CN110232349A | 2019-09-13 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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