公开(公告)号：US20240355158A1

公开(公告)日：2024-10-24

申请号：US18291216

申请日：2022-07-22

Applicant: Carl Zeiss Jena GmbH

Inventor： Viktor SCHUETZ ,  Isabelle MARET ,  Robert HEUER ,  Christoph ERLER ,  Roman KLEINDIENST

IPC: G07C9/00 ,  B60R25/20 ,  B60R25/31 ,  E05F15/73 ,  E05F15/76 ,  G03H1/00 ,  G03H1/04 ,  G06V10/14 ,  G06V20/52 ,  G06V40/10 ,  G06V40/60

CPC classification number: G07C9/00563 ,  B60R25/20 ,  B60R25/31 ,  E05F15/76 ,  G03H1/0011 ,  G03H1/0443 ,  G03H1/0465 ,  G06V10/14 ,  G06V20/52 ,  G06V40/10 ,  E05F2015/767 ,  E05Y2900/132 ,  E05Y2900/30 ,  E05Y2900/531 ,  G03H2222/14 ,  G06V40/60

Abstract: A system for a functionalized pane in a door, through which person-based and/or object-based authorization verification can be carried out is provided. The person-based verification can include a holography-based, stereoscopic holocamera that can be integrated into the pane. In addition, a holographic display that can also be integrated into the pane can be included. Corresponding methods can be used to carry out the authorization verification under the control of the control device and to control a locking mechanism of a door and a holographic display.

公开(公告)号：US20240328928A1

公开(公告)日：2024-10-03

申请号：US18610304

申请日：2024-03-20

Applicant: The University of Hong Kong

Inventor： Yanmin ZHU ,  Yuxing LI ,  Yin Mun Edmund LAM

IPC: G01N21/21 ,  G03H1/00 ,  G03H1/04 ,  G06V10/147 ,  G06V10/34 ,  G06V10/764 ,  G06V10/82 ,  H04N23/55

CPC classification number: G01N21/21 ,  G03H1/0005 ,  G03H1/0443 ,  G06V10/147 ,  G06V10/34 ,  G06V10/764 ,  G06V10/82 ,  H04N23/55 ,  G01N2201/06113 ,  G01N2201/068 ,  G03H2001/0033 ,  G03H2210/55 ,  G03H2223/15 ,  G03H2223/20 ,  G03H2223/22

Abstract: A method for aquatic microplastic identification is provided. The method includes steps as follows: emitting a laser beam from a laser source, such that the laser beam passes through a liquid sample with MP samples in a sample channel and then a polarizer and is received by polarization camera; capturing a sample image of the MP samples by the polarization camera, wherein the sample image comprises interference patterns resulting from superposition of object and reference waves; and feeding the interference patterns into a morphology analyzing module for real-time tracking and analyzing by using a lightweight convolutional neural network (CNN) model, so as to classify the MP samples.

公开(公告)号：US20240310782A1

公开(公告)日：2024-09-19

申请号：US18546095

申请日：2022-02-09

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Aydogan Ozcan ,  Yair Rivenson ,  Luzhe Huang ,  Tairan Liu

IPC: G03H1/08 ,  G03H1/00 ,  G03H1/04 ,  G06T5/50 ,  G06T5/60

CPC classification number: G03H1/0866 ,  G03H1/0005 ,  G03H1/0443 ,  G06T5/50 ,  G06T5/60 ,  G03H2001/005 ,  G03H2001/0458 ,  G03H2001/0883 ,  G03H2210/55 ,  G06T2207/10056 ,  G06T2207/20084 ,  G06T2207/30024

Abstract: Digital holography is one of the most widely used label-free microscopy techniques in biomedical imaging. Recovery of the missing phase information of a hologram is an important step in holographic image reconstruction. A convolutional recurrent neural network (RNN)-based phase recovery approach is employed that uses multiple holograms, captured at different sample-to-sensor distances to rapidly reconstruct the phase and amplitude information of a sample, while also performing autofocusing through the same trained neural network. The success of this deep learning-enabled holography method is demonstrated by imaging microscopic features of human tissue samples and Papanicolaou (Pap) smears. These results constitute the first demonstration of the use of recurrent neural networks for holographic imaging and phase recovery, and compared with existing methods, the presented approach improves the reconstructed image quality, while also increasing the depth-of-field and inference speed.

公开(公告)号：US12050435B2

公开(公告)日：2024-07-30

申请号：US18217618

申请日：2023-07-03

Applicant: CUBIXEL CO., LTD.

Inventor： Tae Geun Kim

IPC: G03H1/22 ,  G02B26/10 ,  G02B27/28 ,  G03H1/04

CPC classification number: G03H1/0443 ,  G02B26/101 ,  G02B27/283 ,  G02B27/286 ,  G03H2001/0447 ,  G03H2001/0463 ,  G03H2222/31 ,  G03H2222/45 ,  G03H2223/20 ,  G03H2223/22 ,  G03H2223/24 ,  G03H2225/32 ,  G03H2226/02

Abstract: An optical scanning holography system includes a polarization-sensitive lens configured to receive a linearly polarized beam and generate a first spherical wave of right-handed circular polarized light having a negative focal length and a second spherical wave of left-handed circular polarized light having a positive focal length, a first polarizer configured to pass only a beam component therethrough in a predetermined polarization direction among components of the generated first and second spherical waves, a scanning unit configured to scan an object by using an interference beam generated between the first and second spherical waves passing through the first polarizer, and a first photodetector configured to detect a beam reflected from the object.

公开(公告)号：US12019397B2

公开(公告)日：2024-06-25

申请号：US17646208

申请日：2021-12-28

Applicant: Commissariat à l'Energie Atomique et aux Energies Alternatives ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITÉ GRENOBLE ALPES

Inventor： Marc Zelsmann ,  Pierre Marcoux ,  Emmanuel Picard

IPC: G03H1/08 ,  G03H1/04 ,  G06T5/50 ,  H04N23/56

CPC classification number: G03H1/0891 ,  G03H1/0443 ,  G06T5/50 ,  H04N23/56 ,  G03H2001/0452 ,  G03H2210/55 ,  G03H2226/02 ,  G06T2207/30004

Abstract: A method for obtaining an image of a sample includes illuminating the sample using a light source; acquiring, using an image sensor, a first image of the sample, the image being formed in the detection plane, the first image being representative of an exposure light wave propagating, from the sample, to the image sensor, along a first optical path; modifying an optical refractive index, between the image sensor and the sample; acquiring a second image of the sample, the image being representative of the exposure light wave along a second optical path; and implementing an iterative algorithm that combines the first and second images so as to obtain an image of the sample.

公开(公告)号：US20240192637A1

公开(公告)日：2024-06-13

申请号：US18552509

申请日：2022-02-28

Applicant: National Institute of Information and Communications Technology

Inventor： Tatsuki TAHARA

IPC: G03H1/04 ,  G03H1/06 ,  G03H1/26

CPC classification number: G03H1/0443 ,  G03H1/06 ,  G03H1/2645 ,  G03H2001/0458 ,  G03H2222/31 ,  G03H2223/20 ,  G03H2223/22 ,  G03H2225/32

Abstract: A hologram recording device includes an image sensor and a light interference generator that is attached to an imaging surface of the image sensor. The light interference generator is configured to generate two light waves whose phases are different from each other from an incident object light, and the image sensor is configured to record interference fringes that are formed from the two light waves as a hologram. The light interference generator includes a first birefringent material, a phase shifter array configured to spatially divide a polarization component whose polarization direction is parallel to or orthogonal to an optic axis of the first birefringent material to change a phase difference in two or more ways, and a polarizer whose transmission axis is in a direction that is inclined with respect to the optic axis of the first birefringent material. The first birefringent material, phase shifter array, and polarizer are arranged in this order starting from a side of incidence of light.

公开(公告)号：US11992297B2

公开(公告)日：2024-05-28

申请号：US17164686

申请日：2021-02-01

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Ik Hwan Kwon ,  Tae Geol Lee ,  Sang Won Lee

IPC: A61B5/00 ,  A01K1/03 ,  A01K61/00 ,  A61B5/024 ,  A61D3/00 ,  G03H1/04

CPC classification number: A61B5/024 ,  A01K1/031 ,  A01K61/00 ,  A61D3/00 ,  G03H1/0443 ,  A61B2503/40

Abstract: Provided is a method of monitoring a heart rate of an open circulatory system aquatic organism including water fleas, zebrafish, brine shrimp, and the method of evaluating individual response by real time measurement of a heart rate of an aquatic organism and the individual response evaluation apparatus by real time measurement of a heart rate of an aquatic organism according to the present invention may effectively fix the aquatic organism for real time measurement of the heart rate of an aquatic organism, and may measure the heart rate using digital holography to display the heart rate while configuring a data format to allow the corresponding data to be stored for a long time, thereby treating a compound for inducing an individual response, securing a heart rate change in real time by image processing, and then effectively determining the presence or absence of harmfulness due to induction of the individual response.

公开(公告)号：US20240126206A1

公开(公告)日：2024-04-18

申请号：US18533186

申请日：2023-12-08

Applicant: Korea Photonics Technology Institute

Inventor： Seon Kyu YOON ,  Ha Mong SHIM ,  Jin Su LEE ,  Kwang Hoon LEE

IPC: G03H1/00 ,  G01B9/021 ,  G01B11/16 ,  G03H1/04 ,  G03H1/08

CPC classification number: G03H1/0005 ,  G01B9/021 ,  G01B11/164 ,  G03H1/0402 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/005 ,  G03H2001/0415

Abstract: According to an embodiment, a holographic microscope comprises a light source, an optical system splitting light emitted from the light source into an object and a reflective mirror and inducing interference between light reflected by the object or transmitted through the object and light reflected by the reflective mirror, a first image sensor receiving the interference light and sensing interference information for the interference light, a second image sensor receiving the light reflected by the object or transmitted through the object and sensing information for the received light, and an image processor deriving a shape of the object based on the interference information sensed by the first image sensor and the information sensed by the second image sensor.

公开(公告)号：US11893728B2

公开(公告)日：2024-02-06

申请号：US16928974

申请日：2020-07-14

Applicant: FUJIFILM Corporation

Inventor： Sohichiro Nakamura ,  Ryusuke Osaki ,  Sho Onozawa ,  Akihiro Asakura

IPC: G06T7/00 ,  G06T7/62 ,  C12Q1/02 ,  G01N15/06 ,  G01N21/45 ,  G02B21/16 ,  G03H1/04

CPC classification number: G06T7/0012 ,  C12Q1/02 ,  G01N15/06 ,  G01N21/453 ,  G06T7/62 ,  G01N2015/0693 ,  G01N2201/0633 ,  G01N2201/06113 ,  G02B21/16 ,  G03H1/0443 ,  G06T2207/10056 ,  G06T2207/10064 ,  G06T2207/30024

Abstract: Provided is a determination method capable of non-destructively and simply determining a state of a sphere that is an aggregate of a plurality of cells. A phase difference image of a sphere that is an aggregate of a plurality of cells is generated from a hologram obtained by imaging the sphere, and a state of the sphere is determined on the basis of the phase difference image and a shape index value corresponding to a shape of the sphere.

公开(公告)号：US20230408821A1

公开(公告)日：2023-12-21

申请号：US18212354

申请日：2023-06-21

Applicant: LINGXI-AR Technology Co., Ltd.

Inventor： Zhiyuan GU ,  Xin ZHAO ,  Yu ZHENG

IPC: G02B27/01 ,  G03H1/00 ,  G03H1/02 ,  G03H1/04

CPC classification number: G02B27/0172 ,  G03H1/0005 ,  G03H1/0272 ,  G03H1/0443 ,  G02B2027/0174 ,  G02B2027/0123 ,  G03H2222/34 ,  G03H2222/42

Abstract: A near-eye display device and a wearable device having the same. The near-eye display device includes a laser generation module, an optical waveguide element, and a holographic optical element; the laser generation module is configured to emit parallel laser beams; the optical waveguide element has an in-coupler area and an out-coupler area, the optical waveguide element is configured to receive the parallel laser beams and output the parallel laser beams in parallel after one-dimensional pupil expansion or two-dimensional pupil expansion; the holographic optical element has interference fringes and is attached to the out-coupler area, the holographic optical element is configured to receive the parallel laser beams from the optical waveguide element and to reflect or transmit the parallel laser beams by diffraction to output a plurality of converging image light beams.