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1. 发明申请

WO2021245374A1 METHOD AND SYSTEM FOR JOINT DEMOSAICKING AND SPECTRAL SIGNATURE ESTIMATION 审中-公开
公开(公告)号：WO2021245374A1
公开(公告)日：2021-12-09
申请号：PCT/GB2021/051280
申请日：2021-05-26
申请人： KING'S COLLEGE LONDON
发明人： VERCAUTEREN, Tom , EBNER, Michael , XIE, Yijing , NABAVI, Eli
IPC分类号： G01J3/28 , G01J3/02 , A61B1/00 , A61B5/00 , G06T5/00 , G01J3/12 , H04N9/04 , A61B1/00009 , A61B5/0075 , G01J2003/1217 , G01J2003/283 , G01J3/0202 , G01J3/0218 , G01J3/0264 , G01J3/027 , G01J3/0291 , G01J3/2823 , H04N5/332 , H04N9/04515 , H04N9/04559
摘要： Embodiments of the invention provide a method and system that allows parameters of a desired target image to be determined from hyperspectral imagery of scene. The parameters may be representative of various aspects of the scene being imaged, particularly representative of physical properties of the scene. For example, in some medical imaging contexts, the property being imaged may be blood perfusion or oxygenation saturation level information per pixel. In one embodiment the parameters are obtained by collecting lower temporal and spatial resolution hyperspectral imagery, and then building a virtual hypercube of the information having a higher spatial resolution using a spatiospectral aware demosaicking process, the virtual hypercube then being used for estimation of the desired parameters at the higher spatial resolution. Alternatively, in another embodiment, instead of building the virtual hypercube and then performing the estimation, a joint demosaicking and parameter estimation operation is performed to obtain the parameters. Various white level and spectral calibration operations may also be performed to improve the results obtained. While establishing functional and technical requirements of an intraoperative system for surgery, we present iHSI system embodiments that allows for real-time wide-field HSI and responsive surgical guidance in a highly constrained operating theatre. Two exemplar embodiments exploiting state-of-the-art industrial HSI cameras, respectively using linescan and snapshot imaging technology, were investigated by performing assessments against established design criteria and ex vivo tissue experiments. We further report the use of one real-time iHSI embodiment during an ethically-approved in-patient clinical feasibility case study as part of a spinal fusion surgery therefore successfully validating our assumptions that our invention can be seamlessly integrated into the operating theatre without interrupting the surgical workflow.

2. 发明申请

WO2020256924A1 HYPERSPECTRAL IMAGING WITH MINIMAL AREA MONOLITHIC IMAGE SENSOR 审中-公开
公开(公告)号：WO2020256924A1
公开(公告)日：2020-12-24
申请号：PCT/US2020/035714
申请日：2020-06-02
申请人： ETHICON LLC
发明人： TALBERT, Joshua, D. , WICHERN, Donald, M.
IPC分类号： G01N1/44 , H04N5/361 , A61B1/00009 , A61B1/00186 , A61B1/043 , A61B1/045 , A61B1/0638 , A61B1/0646 , A61B1/0661 , A61B1/07 , G01J2001/4238 , G01J2001/4242 , G01J2003/102 , G01J3/0218 , G01J3/0264 , G01J3/0297 , G01J3/10 , G01J3/28 , G01J3/2803 , G01J3/2823 , G02B23/2484 , G06T1/0007 , G06T2207/10068
摘要： Systems, methods, and devices for hyperspectral imaging with a minimal area image sensor are disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation, wherein the pixel array comprises active pixels and optical black pixels. The system includes a black clamp providing offset control for data generated by the pixel array and a controller comprising a processor in electrical communication with the image sensor and the emitter. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of electromagnetic radiation having a wavelength from about 513 nm to about 545 nm, electromagnetic radiation having a wavelength from about 565 nm to about 585 nm, or electromagnetic radiation having a wavelength from about 900 nm to about 1000 nm.

3. 发明申请

WO2022016156A1 SYSTEMS AND METHODS OF CONFORMAL SPECTRAL LIBRARY TRAINING 审中-公开
公开(公告)号：WO2022016156A1
公开(公告)日：2022-01-20
申请号：PCT/US2021/042232
申请日：2021-07-19
申请人： CHEMIMAGE CORPORATION
发明人： TREADO, Patrick, J. , NELSON, Matthew, P. , TAZIK, Shawna , SCHWEITZER, Robert, C.
IPC分类号： G01J3/28 , G01J3/30 , G01J3/36 , G01N21/25 , G01N21/31 , G02F1/347 , G01J2003/2826 , G01J2003/2833 , G01J2003/2836 , G01J3/2823
摘要： The conformal spectral library training method (CSLTM) of the disclosure allows sets of voltages for an optical filter to be calculated by way of a direct calculation. Methods, optical devices, and software are disclosed.

4. 发明申请

WO2021262343A1 SWITCHABLE MULTl-SPECTRUM OPTICAL SENSOR 审中-公开
公开(公告)号：WO2021262343A1
公开(公告)日：2021-12-30
申请号：PCT/US2021/032657
申请日：2021-05-17
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： POWELL, Karlton David , PRADEEP, Vivek
IPC分类号： G01J3/02 , G01J3/28 , G01J3/32 , H04N5/33 , G01J3/12 , G01J2003/1213 , G01J2003/2826 , G01J3/0208 , G01J3/0229 , G01J3/108 , G01J3/2803 , G01J3/2823
摘要： An optical system, comprising a multi-spectral optical element, a switchable filter, a dual bandpass filter, and a sensor. The multi-spectral optical element receives light in at least a first spectral band and a second spectral band. The dual bandpass filter filters out wavelengths of light in a transition region of the switchable filter between the first spectral band and the second spectral band. The switchable filter filters light received from the dual bandpass filter in the first spectral band in a first mode where the switchable filter transmits light in the first spectral band and in a second mode where the switchable filter does not transmit light in the first spectral band. The sensor is disposed at an image plane, and the multi-spectral optical element is configured to produce a modulation transfer function value that is a above a predetermined threshold for each of the spectral bands.

5. 发明申请

WO2021262343A8 SWITCHABLE MULTI-SPECTRUM OPTICAL SENSOR 审中-公开
公开(公告)号：WO2021262343A8
公开(公告)日：2021-12-30
申请号：PCT/US2021/032657
申请日：2021-05-17
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： POWELL, Karlton David , PRADEEP, Vivek
IPC分类号： G01J3/02 , G01J3/28 , G01J3/32 , H04N5/33 , G01J3/12 , G01J2003/1213 , G01J2003/2826 , G01J3/0208 , G01J3/0229 , G01J3/108 , G01J3/2803 , G01J3/2823
摘要： An optical system, comprising a multi-spectral optical element, a switchable filter, a dual bandpass filter, and a sensor. The multi-spectral optical element receives light in at least a first spectral band and a second spectral band. The dual bandpass filter filters out wavelengths of light in a transition region of the switchable filter between the first spectral band and the second spectral band. The switchable filter filters light received from the dual bandpass filter in the first spectral band in a first mode where the switchable filter transmits light in the first spectral band and in a second mode where the switchable filter does not transmit light in the first spectral band. The sensor is disposed at an image plane, and the multi-spectral optical element is configured to produce a modulation transfer function value that is a above a predetermined threshold for each of the spectral bands.

6. 发明申请

WO2021194774A1 IMAGING ASSISTED SCANNING SPECTROSCOPY FOR GEM IDENTIFICATION 审中-公开
公开(公告)号：WO2021194774A1
公开(公告)日：2021-09-30
申请号：PCT/US2021/022218
申请日：2021-03-12
申请人： GEMOLOGICAL INSTITUTE OF AMERICA, INC. (GIA)
发明人： TSAI, Tsung-Han , TAKAHASHI, Hiroshi
IPC分类号： G01N21/87 , G01N21/65 , G01N21/00 , G01N21/31 , G01N21/25 , G01J2003/2836 , G01J3/2823 , G01N2021/656
摘要： Systems and methods here may be used for automated capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, applying a Raman Probe to a first sample gemstone under evaluation on the stage, receiving spectrometer data of the sample gemstone from the probe, automatically moving the stage to a second sample, using the image data, and analyzing the other samples.

7. 发明申请

WO2021148119A1 SPECTRAL IMAGING APPARATUS AND METHOD FOR SIMULTANEOUS CAPTURE OF MULTIPLE SPECTRAL IMAGES 审中-公开
公开(公告)号：WO2021148119A1
公开(公告)日：2021-07-29
申请号：PCT/EP2020/051556
申请日：2020-01-23
申请人： HUAWEI TECHNOLOGIES CO., LTD. , MUUKKI, Mikko
发明人： PERÄLÄ, Mikko Aulis
IPC分类号： G01J3/02 , G01J3/26 , G01J3/28 , G01J3/36 , G01J2003/2826 , G01J3/0208 , G01J3/0256 , G01J3/0259 , G01J3/0272 , G01J3/0291 , G01J3/2823
摘要： According to example, a spectral imaging apparatus for generating multiple images of a scene or an object comprises a resonating cavity disposed over an imaging structure, wherein the resonating cavity comprises multiple sections each having respective different wavelength bandpass responses.

8. 发明申请

WO2022011420A1 NON-MYDRIATIC HYPERSPECTRAL OCULAR FUNDUS CAMERA 审中-公开
公开(公告)号：WO2022011420A1
公开(公告)日：2022-01-20
申请号：PCT/AU2021/050754
申请日：2021-07-14
申请人： CENTRE FOR EYE RESEARCH AUSTRALIA LIMITED
发明人： HADOUX, Xavier , JANNAUD, Maxime , LABRECQUE, Francis , VAN WIJNGAARDEN, Peter
IPC分类号： A61B3/14 , A61B3/12 , A61B3/10 , A61B3/15 , G01J3/26 , G01J3/28 , G02B21/00 , G02B27/09 , A61B2560/0223 , A61B2576/02 , A61B3/0008 , A61B3/0025 , A61B3/1015 , A61B3/102 , A61B3/13 , A61B5/0033 , A61B5/0075 , A61B5/0082 , G01J2003/1213 , G01J2003/1234 , G01J3/2823 , H04N5/232125 , H04N5/235 , H04N5/2354 , H04N5/351 , H04N5/3537 , H04N5/355 , H04N5/35527 , H04N9/04517 , H04N9/0455 , H04N9/04553
摘要： Described herein is an ocular fundus imaging apparatus (11) including and an illumination module (140) and an imaging module (141). The illumination module (140) includes light sources (103, 104) configured to generate light at wavelengths within a desired spectral range. A first optical assembly is provided to shape and direct the light onto an eye (102) of a subject. A tuneable bandpass filter (109) selects a wavelength sub-interval within the desired spectral range. The imaging module (141) includes a second optical assembly to collect light returned from the eye (102) of the subject and to project the returned light from the eye (102) onto an image sensor (113). The second optical assembly includes one or more optical elements capable of compensating for ocular variation. The image sensor (113) is configured to image the returned light to generate an image of the ocular fundus at the wavelength sub-interval.

9. 发明申请

WO2021229619A2 SPECTRAL RECOVERY OF IMAGES IN LOGARITHMIC DOMAIN 审中-公开
公开(公告)号：WO2021229619A2
公开(公告)日：2021-11-18
申请号：PCT/IT2021/050139
申请日：2021-05-11
申请人： UNIVERSITÀ DEGLI STUDI DI MILANO - BICOCCA
发明人： SCHETTINI, Raimondo , BIANCO, Simone
IPC分类号： G06T1/00 , G06T7/90 , G01J3/28 , G06N3/02 , G06T5/00 , G01J3/2823 , G06N3/0454 , G06N3/08 , G06T2207/10024 , G06T2207/20081 , G06T2207/20084
摘要： A solution of spectral recovery of images is proposed. A corresponding method (400) comprises receiving (406-427) one or more input values of an input image and recovering (430-460) one or more output values of an output image corresponding thereto (each comprising a greater number of frequency components); this result is obtained by operating at least in part in a logarithmic domain. In addition or alternatively, it is also possible initially to neutralize (430-442) the illuminant of the scene captured in the input image. A software program (300) for implementing the method and a corresponding software program product are also proposed. Furthermore, a computing device (210) for implementing the method and an apparatus (200) comprising at least one such computation device (210) are proposed.

10. 发明申请

WO2021150783A1 SPECTRUM SHAPING DEVICES AND TECHNIQUES FOR OPTICAL CHARACTERIZATION APPLICATIONS 审中-公开
公开(公告)号：WO2021150783A1
公开(公告)日：2021-07-29
申请号：PCT/US2021/014458
申请日：2021-01-21
申请人： APPLIED MATERIALS, INC.
发明人： ZHAO, Guoheng , BUDIARTO, Edward W. , EGAN, Todd J.
IPC分类号： G01N21/88 , G01N21/25 , H01L21/67 , G01N21/84 , G01N21/31 , G01J2003/2826 , G01J3/021 , G01J3/14 , G01J3/2823 , G02B6/29313 , G02B6/29389
摘要： Implementations disclosed describe a system comprising a first optical device to receive an input beam of light, the input beam having a plurality of spectral components of light, and cause the input beam to disperse into a plurality of spectral beams, wherein each of the plurality of spectral beams corresponds to one of the plurality of spectral components and propagates along a spatial path that is different from spatial paths of other spectral beams, and a second optical device to collect a portion of each of the spectral beams, wherein the collected portion depends on the spatial path of the respective spectral beam, and form an output beam of light from the collected portion of each of the spectral beams, wherein a spectral profile of the output beam is different from a spectral profile of the input beam of light.

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