US 12,315,040 B2
Method and device for imaging of lensless hyperspectral image
Min Hyuk Kim, Daejeon (KR); and Daniel Jeon, Daejeon (KR)
Assigned to KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon (KR)
Appl. No. 17/272,542
Filed by Korea Advanced Institute of Science and Technology, Daejeon (KR)
PCT Filed Jan. 29, 2020, PCT No. PCT/KR2020/001346
§ 371(c)(1), (2) Date Mar. 1, 2021,
PCT Pub. No. WO2020/159223, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 10-2019-0010977 (KR), filed on Jan. 29, 2019; application No. 10-2019-0071347 (KR), filed on Jun. 17, 2019; and application No. 10-2019-0096565 (KR), filed on Aug. 8, 2019.
Prior Publication US 2021/0350590 A1, Nov. 11, 2021
Int. Cl. G06K 9/00 (2022.01); G01J 3/18 (2006.01); G01J 3/28 (2006.01); G02B 27/42 (2006.01); G06N 3/08 (2023.01); G06T 11/00 (2006.01)
CPC G06T 11/001 (2013.01) [G01J 3/18 (2013.01); G01J 3/2823 (2013.01); G02B 27/4205 (2013.01); G06N 3/08 (2013.01); G01J 2003/2826 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of reconstructing a hyperspectral image, the method comprising:
receiving an image photographed through only a single diffractive optical element attached to a single bare image sensor, wherein an imaging lens includes the single diffractive optical element; and
reconstructing a hyperspectral image of the received image based on the received image and information about a point spread function for each wavelength of the diffractive optical element,
wherein the single diffractive optical element has a diffractive rotation property that spectrally rotates a shape of the point spread function.