Title:
IMAGE NOISE CALIBRATION METHOD AND APPARATUS, IMAGE NOISE REDUCTION METHOD AND APPARATUS, AND IMAGE PROCESSING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/100270
Kind Code:
A1
Abstract:
An image noise calibration method and apparatus, an image noise reduction method and apparatus, and an image processing apparatus (1, 9), the image noise calibration method comprising: acquiring original image data outputted by an image sensor (10, 90), the image sensor (10, 90) comprising an image-sensitive unit array, and the original image data being outputted by the image-sensitive unit array in an optical black state; on the basis of the original image data outputted by the image-sensitive unit array, determining fixed pattern noise FPN calibration data of the image sensor (10, 90), the FPN calibration data being used for noise reduction of the image-sensitive unit array, and the number of FPN calibration data been less than the number of image-sensitive units in the image sensor (10, 90). The present image noise calibration method and apparatus, image noise reduction method and apparatus, and image processing apparatus (1, 9) reduce the amount of FPN calibration data, FPN calibration data being pre-stored in the image noise reduction method and apparatus and the image processing apparatus (1, 9), avoiding re-determining the FPN calibration data at each power-on or mode switch.
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Inventors:
HU TAO (CN)
LIU HUAIYU (CN)
CAO ZISHENG (CN)
LIU HUAIYU (CN)
CAO ZISHENG (CN)
Application Number:
PCT/CN2017/112440
Publication Date:
May 31, 2019
Filing Date:
November 22, 2017
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H04N5/357
Foreign References:
| CN101448078A | 2009-06-03 | |||
| US20040113052A1 | 2004-06-17 | |||
| CN102663714A | 2012-09-12 | |||
| CN103338337A | 2013-10-02 | |||
| CN101764959A | 2010-06-30 | |||
| CN102131059A | 2011-07-20 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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