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Patent Searching and Data


Title:
IMAGE PROCESSING DEVICE, IMAGING SYSTEM, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2018/221019
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an image processing device, an imaging system, an image processing method, and a recording medium which allow a clear image with a wide angle of view to be obtained without using a lens. The image processing device according to one aspect of the present invention is provided with: a projection image input unit that receives input of a projection image formed by light from a subject entering a Fresnel zone plate; a complex image generation unit that generates a complex image including an image of a real part and an image of an imaginary part by multiplying, with the projection image, a first Fresnel zone pattern and a second Fresnel zone pattern which has the same local spatial frequency in each area as the first Fresnel zone pattern, the phase of the local spatial frequency being different from that of the local spatial frequency of the first Fresnel zone pattern; and a Fourier transform unit that reconstructs a spatial area image by performing two-dimensional complex Fourier transform on the complex image.

Inventors:
KISHINE YASUNOBU (JP)
NARUSE YOSUKE (JP)
Application Number:
PCT/JP2018/014981
Publication Date:
December 06, 2018
Filing Date:
April 10, 2018
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
H04N5/232; G02B3/08; H04N5/225
Domestic Patent References:
WO2018055831A12018-03-29
WO2016203573A12016-12-22
WO2016203573A12016-12-22
Other References:
"Development of lensless camera technology enabling easy focus adjustment after motion picture imaging", 15 November 2016, HITACHI, LTD.
YUSUKE NAKAMURATAKESHI SHIMANOKAZUYUKI TAJIMAMAYU SAOTAKU HOSHIZAWA: "The Institute of Image Information and Television Engineers Technical Report", vol. 40, November 2016, HITACHI, LTD., article "Lensless Light-field Imaging with Fresnel Zone Aperture", pages: 7 - 8
See also references of EP 3633973A4
Attorney, Agent or Firm:
NAKASHIMA Junko et al. (JP)
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