-
公开(公告)号：US20160210763A1
公开(公告)日：2016-07-21
申请号：US15003559
申请日：2016-01-21
Applicant: California Institute of Technology
Inventor： Roarke W. Horstmeyer , Changhuei Yang
Abstract: Certain aspects pertain to Fourier ptychographic tomographic systems and methods for acquiring a plurality of uniquely illuminated intensity measurements based on light passing through a thick sample from plane wave illumination at different angles and for constructing three-dimensional tomographic data of the thick sample by iteratively determining three-dimensional tomographic data in the Fourier domain that is self-consistent with the uniquely illuminated intensity measurements.
Abstract translation: 某些方面涉及傅立叶级联断层摄影系统以及用于基于从不同角度的平面波照射穿过厚样本的光获取多个独特的照明强度测量值的方法，并且通过迭代地确定三个方面来构造厚样本的三维断层数据 傅立叶域中的维度断层扫描数据与独特的照明强度测量值自相一致。
-
公开(公告)号：US20140126691A1
公开(公告)日：2014-05-08
申请号：US14065305
申请日：2013-10-28
Applicant: California Institute of Technology
Inventor： Guoan Zheng , Changhuei Yang , Roarke Horstmeyer
IPC: G21K7/00
CPC classification number: G21K7/00 , G02B21/002 , G02B21/365 , G02B21/367 , G02B27/58 , G06K9/00134
Abstract: Methods, systems, and devices of Fourier ptychographic X-ray imaging by capturing a plurality of variably-illuminated, low-resolution intensity X-ray images of a specimen and computationally reconstructing a high-resolution X-ray image of the specimen by iteratively updating overlapping regions in Fourier space with the variably-illuminated, low-resolution intensity X-ray images.
Abstract translation: 通过拍摄样本的多个可变照明的低分辨率强度X射线图像并通过迭代更新计算重建样本的高分辨率X射线图像来进行傅里叶片状X线摄影的方法，系统和装置 傅立叶空间中具有可变照明的低分辨率强度X射线图像的重叠区域。
-
公开(公告)号：US12299570B2
公开(公告)日：2025-05-13
申请号：US17859500
申请日：2022-07-07
Inventor： Cheng Shen , Changhuei Yang , Adiyant Lamba , Magdalena D. Zernicka-Goetz
Abstract: Disclosed herein include systems, devices, and methods for detecting embryo polarization from a 2D image generated from a 3D image of an embryo that is not fluorescently labeled using a convolutional neural network (CNN), e.g., deep CNN.
-
公开(公告)号：US12198300B2
公开(公告)日：2025-01-14
申请号：US17652667
申请日：2022-02-25
Applicant: California Institute of Technology , Washington University
Inventor： Changhuei Yang , Cheng Shen , Richard J. Cote , Siddarth Rawal
Abstract: Computational refocusing-assisted deep learning methods, apparatus, and systems are described. In certain pathology examples, a representative image is generated using a machine learning model trained with uniformly focused training images generated by a Fourier ptychographic digital refocusing procedure and abnormalities are automatedly identified and/or enumerated based on the representative image.
-
公开(公告)号：US20220341723A1
公开(公告)日：2022-10-27
申请号：US17661254
申请日：2022-04-28
Applicant: California Institute of Technology
Inventor： Joshua Brake , Jian Xu , Changhuei Yang
IPC: G01B9/02055 , G01B11/24 , G01B9/02015
Abstract: Interferometric speckle visibility spectroscopy methods, systems, and non-transitory computer readable media for recovering sample speckle field data or a speckle field pattern from an off-axis interferogram recorded by one or more sensors over an exposure time and determining sample dynamics of a sample being analyzed from speckle statistics of the speckle field data or the speckle field pattern.
-
Patent Agency Ranking
公开(公告)号：US11156960B2
公开(公告)日：2021-10-26
申请号：US16058498
申请日：2018-08-08
Applicant: California Institute of Technology
Inventor： Haowen Ruan , Jacob Berlin , Tom Haber , Changhuei Yang
IPC: G01N21/47 , G03H1/04 , G01N33/483 , G03H1/22 , G03H1/00
Abstract: A magnetic field controlled guidestar for focusing light deep inside scattering media using optical phase conjugation. Compared with the optical and ultrasonic field, the magnetic field has an exceptional penetration depth. The magnetic particle guidestar has a high light-tagging efficiency, good biocompatibility, and a small diameter which enables a sharp and bright focusing deep inside biological tissue. This new method can benefit a wide range of biomedical applications including deep-tissue imaging, neural modulation, and targeted photothermal and photodynamic therapies.
-
公开(公告)号：US10732437B2
公开(公告)日：2020-08-04
申请号：US15957541
申请日：2018-04-19
Applicant: California Institute of Technology
Inventor： Mooseok Jang , Yu Horie , Atsushi Shibukawa , Andrei Faraon , Changhuei Yang
Abstract: Complex wavefront engineering is realized through a random metasurface phase mask backed by a phase-only spatial light modulator. The metasurface consists of an array of subwavelength nanoscatterers which give the metasurface a pre-arranged disorder. Since the transmission matrix of the disordered metasurface is known, there is no need for extensive characterization measurements which are instead required in standard disordered optical devices.
-
18.发明授权公开(公告)号：US10684458B2
公开(公告)日：2020-06-16
申请号：US15068389
申请日：2016-03-11
Applicant: California Institute of Technology
Inventor： Jaebum Chung , Changhuei Yang
Abstract: Aberration-corrected incoherent imaging methods and systems that can acquire a sequence of coherent images and an incoherent image of a specimen, implement an embedded pupil function recovery process in junction with Fourier ptychographic technique to construct an improved resolution image and pupil function of the imaging system using the sequence of coherent images, determine an optical transfer function based on the estimated pupil function, and remove the aberration from the incoherent image using a deconvolution process to generate an aberration-corrected incoherent image.
-
公开(公告)号：US10606055B2
公开(公告)日：2020-03-31
申请号：US15959050
申请日：2018-04-20
Applicant: California Institute of Technology
Inventor： Roarke W. Horstmeyer , Guoan Zheng , Xiaoze Ou , Changhuei Yang
Abstract: Certain aspects pertain to aperture-scanning Fourier ptychographic imaging devices comprising an aperture scanner that can generate an aperture at different locations at an intermediate plane of an optical arrangement, and a detector that can acquire lower resolution intensity images for different aperture locations, and wherein a higher resolution complex image may be constructed by iteratively updating regions in Fourier space with the acquired lower resolution images.
-
公开(公告)号：US10568507B2
公开(公告)日：2020-02-25
申请号：US15620674
申请日：2017-06-12
Applicant: California Institute of Technology
Inventor： Jaebum Chung , Changhuei Yang
Abstract: Certain embodiments pertain to pupil ptychography methods and systems.
-
-
-
-
-
-
-
-
-
Search Results
99
records
(took 0.031 seconds)
