-
公开(公告)号：US20240337982A1
公开(公告)日：2024-10-10
申请号：US17797120
申请日：2021-06-09
Applicant: SHENZHEN TECHNOLOGY UNIVERSITY
Inventor： Xuhui ZHANG , Wenjing SHEN
CPC classification number: G03H1/0005 , G02B21/361 , G03H1/0443 , G03H1/0866 , G03H2001/005
Abstract: A transflective digital holographic microscope system belongs to the technical field of microscopes, includes a reflection-type digital holographic microscope light path and a transmission-type digital holographic microscope light path, wherein the reflection-type digital holographic microscope light path is as follows: a first light beam is changed in polarization direction through a first polarizer, and is divided into two light waves with vertical polarization states; wherein the transmission-type digital holographic microscope light path is as follows: a second light beam is changed in polarization direction through a second polarizer, and is divided into two light waves with vertical polarization states, so that the thickness information and surface contour information of the sample can be tested at the same time.
-
公开(公告)号：US12099053B2
公开(公告)日：2024-09-24
申请号：US17563701
申请日：2021-12-28
Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Inventor： Hsiang-Chun Wei , Chih-Hsiang Liu , Chung-Lun Kuo , Chun-Wei Lo , Chia-Hung Cho , Wei-Hsiung Tsai
CPC classification number: G01N33/505 , G01N15/1433 , G03H1/0005 , G03H1/0443 , G03H1/0866 , G06T7/0012 , G03H2001/0033 , G03H2001/005 , G06T2207/10056 , G06T2207/10064 , G06T2207/20081 , G06T2207/20084 , G06T2207/30024
Abstract: A method of training AI for label-free cell viability determination includes a step of providing a cell sample, a step of obtaining a fluorescence image and a DHM image of the cell sample, a step of determining a first cell viability of the cell sample according to the fluorescence image of the cell sample, a step of labeling the DHM image of the cell sample as a model specifying the first cell viability, and a step of performing AI training by using the model containing the DHM image of the cell sample.
-
公开(公告)号：US20240184243A1
公开(公告)日：2024-06-06
申请号：US18436042
申请日：2024-02-08
Applicant: FUJIFILM CORPORATION
Inventor： Hiroaki YAMAMOTO
CPC classification number: G03H1/0866 , G03H1/02 , G03H2001/0212 , G03H2001/0224 , G03H2222/12 , G03H2222/45
Abstract: A processor performs control of causing illumination light with a first set light quantity to be emitted from a plurality of emission positions one by one in order to obtain a plurality of interference-fringe images serving as a source of a super-resolution interference-fringe image with a resolution exceeding a resolution of an imaging element that picks up an image of interference fringes, and at least one of control of setting a light quantity of the illumination light to a second set light quantity different from the first set light quantity during switching from a current emission position to a next emission position, or control of causing the illumination light to be emitted at a separate emission position separated by at least one emission position from both the current emission position and the next emission position during the switching from the current emission position to the next emission position.
-
公开(公告)号：US20240184242A1
公开(公告)日：2024-06-06
申请号：US18284920
申请日：2022-03-25
Applicant: Massachusetts Institute of Technology
Inventor： Wojciech Matusik , Liang Shi
CPC classification number: G03H1/0841 , G03H1/0406 , G03H1/0866 , G03H2001/085 , G03H2001/2271 , G03H2001/2605
Abstract: A number of techniques provide a data efficient and/or computation efficient computer-generated holography, examples of which may be implemented on low-power devices such as smartphones and virtual-reality/augmented-reality devices and provide high fidelity holographic images. The techniques include used of layered depth image representations and end-to-end training of neural network generation of double-phase hologram encoding.
-
5.发明公开公开(公告)号：US20240134314A1
公开(公告)日：2024-04-25
申请号：US18396691
申请日：2023-12-26
Applicant: Exciting Technology LLC
Inventor： Matthew P. Dierking , Anna Hecht
CPC classification number: G03H1/0866 , G01H9/00 , G03H1/0005 , G03H1/0443 , G03H1/0486 , G03H2001/0033 , G03H2001/0077
Abstract: An example system includes a master oscillator that provides a master oscillator beam, a first fiber beam splitter that splits the master oscillator beam into a first branch and a second branch, a second fiber beam splitter that splits the first branch into an imaging branch and an amplified characteristic branch, and a compensation branch mixer that mixes the second branch and the amplified characteristic branch into a compensation branch. The example system includes transmission optics that direct the imaging branch to a target location, an imaging mixer that mixes the compensation branch and a reflected image from the target location into an imaging signal, and an acquisition device that receives the imaging signal as a final image. An example system optionally includes a mode matching lens that applies a selected wavefront characteristic to the compensation branch.
-
Patent Agency Ranking
公开(公告)号：US11892803B2
公开(公告)日：2024-02-06
申请号：US17368581
申请日：2021-07-06
Applicant: VividQ Limited
Inventor： Andrzej Kaczorowski
CPC classification number: G03H1/2294 , G03H1/0866 , G03H1/16 , G03H2001/2297 , G03H2210/33 , G03H2222/20 , G03H2225/32
Abstract: A holographic image display system comprising a processor receiving image data at an input and producing output hologram data based on the image data. The image data comprises three-dimensional image data that is separable into a plurality of two-dimensional image layers at different image planes. The processor is configured to: a) perform a space-frequency transform on each image layer to provide a transformed image layer, b) apply a focus factor to each transformed image layer, c) apply a pseudo-random phase factor to each transformed image layer, and d) sum the transformed image layers to form a holographic sub-frame, e) repeat steps (c) and (d) for a plurality of iterations, applying a different pseudo-random phase factor to the transformed image layers in each iteration to form a plurality of holographic sub-frames; and f) drive a spatial light modulator with the holographic sub-frames in rapid temporal succession to generate a holographic image.
-
公开(公告)号：US11835923B2
公开(公告)日：2023-12-05
申请号：US17092181
申请日：2020-11-06
Applicant: RADIANT GEOSPATIAL SOLUTIONS LLC
Inventor： Richard G Paxman , David A. Carrara
CPC classification number: G03H1/0866 , G03H1/0005 , G03H2222/12 , G03H2240/54
Abstract: Example embodiments provide digital holographic techniques and associated systems for imaging through scattering media in a strictly one-sided observation in which the observer (e.g. the controller of the camera) has no access to the object plane nor does the observer introduce a fluorescing agent to the object plane. An example imaging system comprises a laser source, a digital sensor array, and a processing system. The processing system transmits light from the laser source to a target object; detects interference formed on the digital sensor array by a reference beam from the transmitted light and reflected light from the target object, the reflected light either travelling through or being reflected by a scattering medium located between the target object and the digital sensor array; jointly estimating, based on the detected interference, parameters defining the scattering behavior of the particular scattering medium and an image of the target object; and outputting the jointly estimated scattering parameters and an image of the target object.
-
公开(公告)号：US11733649B2
公开(公告)日：2023-08-22
申请号：US17184767
申请日：2021-02-25
Inventor： Young Ho Seo , Kyung Jin Kim , Dong Wook Kim
IPC: G03H1/08 , G06T17/20 , G03H1/02 , H04N13/282
CPC classification number: G03H1/0841 , G03H1/0248 , G03H1/0866 , G06T17/205 , G03H2210/30 , G03H2210/42 , G03H2210/452 , H04N13/282
Abstract: Disclosed is a method of generating a volume hologram using a point cloud and a mesh, in which a weight is given to a brightness of a light source according to a direction of a light in order to record a hologram of better quality. The method includes: (a) acquiring multi-view depth and color images; (b) generating point cloud data of a three-dimensional object from the acquired multi-view depth and color images; (c) generating mesh data of the three-dimensional object from the point cloud data of the three-dimensional object; (d) calculating a normal vector of each mesh from the mesh data of the three-dimensional object; (e) extracting three-dimensional data at a user viewpoint from the mesh data of the three-dimensional object by using the normal vector of the mesh; and (f) generating hologram data from three-dimensional data at the user viewpoint.
-
公开(公告)号：US11644791B2
公开(公告)日：2023-05-09
申请号：US16642994
申请日：2018-07-31
Applicant: University of Hyogo
Inventor： Kunihiro Sato
CPC classification number: G03H1/0866 , G03H1/0005 , G03H1/0404 , G03H1/0465 , G03H1/0808 , G03H1/2202 , G03H2001/005 , G03H2001/0413 , G03H2001/0415 , G03H2001/0445 , G03H2001/0456 , G03H2001/0473 , G03H2001/0825 , G03H2001/2239
Abstract: A holographic imaging device and method realizes both a transmission type and a reflection type, and also realizes a long working distance wide field of view or ultra-high resolution. Object light emitted from an object, sequentially illuminated with parallel illumination light whose incident direction is changed, is recorded on a plurality of object light holograms for each incident direction using off-axis spherical wave reference light. The reference light is recorded on a reference light hologram using in-line spherical wave reference light being in-line with the object light. An object light wave hologram and its spatial frequency spectrum at the object position are generated for each incident direction using each hologram. A synthetic spectrum which occupies a wider frequency space is generated by matching each spectrum in the overlapping area, and a synthetic object light wave hologram with increased numerical aperture is obtained thereby.
-
公开(公告)号：US20190250560A1
公开(公告)日：2019-08-15
申请号：US16336890
申请日：2017-09-29
Applicant: Siemens Healthcare GmbH
Inventor： Thomas ENGEL , Oliver HAYDEN
CPC classification number: G03H1/0005 , G03H1/0443 , G03H1/0866 , G03H1/265 , G03H2001/005 , G03H2001/0216 , G03H2001/0445 , G03H2001/0452 , G03H2001/0456 , G03H2001/0875 , G03H2001/0883 , G03H2001/267 , G03H2222/45 , G03H2223/20 , G03H2223/22 , G03H2227/03
Abstract: The invention relates to a device, such as a digital holographic microscope (1), for detecting and processing a first full image of a measurement object, measured with a first offset, wherein an arrangement is provided for generating at least one further full image with at least one offset that differs from said first offset.
-
-
-
-
-
-
-
-
-
Search Results
365
records
(took 0.019 seconds)
