Title:
IMAGING SYSTEM, AND METHOD EXECUTED BY IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/176621
Kind Code:
A1
Abstract:
This imaging system (200) uses compressed sensing technology and comprises: a filter array (10) including a plurality of types of filters having transmission spectra which differ from each other; an image sensor (20) that generates image data based on light transmitted through the filter array (10); a processing circuit (60) that generates hyperspectral image data including images corresponding to four or more bands included in a target wavelength range on the basis of the image data and a restoration table determined on the basis of the spatial distribution of the transmission spectra of the plurality of types of filters; and a light source (70) for emitting reference light that is used in calibration for correcting the restoration table and has the wavelength of at least one of the four or more bands. The processing circuit (60) corrects the restoration table on the basis of reference image data generated as a result of the image sensor (20) detecting the reference light.
Inventors:
KIYOHARA TAKAYUKI
YAKO MOTOKI
ISHIKAWA ATSUSHI
YAKO MOTOKI
ISHIKAWA ATSUSHI
Application Number:
PCT/JP2022/004003
Publication Date:
August 25, 2022
Filing Date:
February 02, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G01J3/26; G01J3/36; G01J3/46; G01J3/51; H04N9/07
Foreign References:
| JP2008518229A | 2008-05-29 | |||
| JP2016090576A | 2016-05-23 | |||
| US20040218172A1 | 2004-11-04 | |||
| JP2020506373A | 2020-02-27 | |||
| JP2016511015A | 2016-04-14 | |||
| JP2017528695A | 2017-09-28 | |||
| US20180045568A1 | 2018-02-15 | |||
| JP2014089075A | 2014-05-15 |
Other References:
JIANG YONGHUA, WANG JINGYIN, ZHANG LI, ZHANG GUO, LI XIN, WU JIAQI: "Geometric Processing and Accuracy Verification of Zhuhai-1 Hyperspectral Satellites", REMOTE SENSING, vol. 11, no. 9, 1 January 2019 (2019-01-01), pages 1 - 17, XP055959451, DOI: 10.3390/rs11090996
HAKALA TEEMU, MARKELIN LAURI, HONKAVAARA EIJA, SCOTT BARRY, THEOCHAROUS THEO, NEVALAINEN OLLI, NÄSI ROOPE, SUOMALAINEN JUHA, VILJA: "Direct Reflectance Measurements from Drones: Sensor Absolute Radiometric Calibration and System Tests for Forest Reflectance Characterization", SENSORS, vol. 18, no. 5, 1 January 2018 (2018-01-01), pages 1 - 24, XP055959454, DOI: 10.3390/s18051417
HAKALA TEEMU, MARKELIN LAURI, HONKAVAARA EIJA, SCOTT BARRY, THEOCHAROUS THEO, NEVALAINEN OLLI, NÄSI ROOPE, SUOMALAINEN JUHA, VILJA: "Direct Reflectance Measurements from Drones: Sensor Absolute Radiometric Calibration and System Tests for Forest Reflectance Characterization", SENSORS, vol. 18, no. 5, 1 January 2018 (2018-01-01), pages 1 - 24, XP055959454, DOI: 10.3390/s18051417
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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