公开(公告)号：US11890094B2

公开(公告)日：2024-02-06

申请号：US17809998

申请日：2022-06-30

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Maarten De Bock ,  Jakub Raczkowski

IPC: G01J3/02 ,  A61B5/1455 ,  G06N3/08 ,  A61B5/00 ,  G06N3/067

CPC classification number: A61B5/1455 ,  A61B5/443 ,  G06N3/067 ,  G06N3/08 ,  A61B2562/0238 ,  A61B2562/046

Abstract: A sensor system includes an array of optical sensors on an integrated circuit and a plurality of sets of optical filters atop at least a portion of the array. Each set of optical filters is associated with a set of optical sensors of the array, with a set of optical filters including a plurality of optical filters, with each optical filter being configured to pass light in a different wavelength range. A first interface is configured to interface with the optical sensors and first processing circuitry that is configured to execute operational instructions for receiving an output signal representative of received light from the optical sensors and determining a spectral response for each set of optical sensors. A second interface is configured to interface with the first processing circuitry with second processing circuitry that is configured for determining, based on the spectral response for each set of optical sensors, an illuminant spectrum for each spectral response and then substantially remove the illuminant spectrum from the spectral response.

公开(公告)号：US11696043B2

公开(公告)日：2023-07-04

申请号：US17340449

申请日：2021-06-07

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Ruben Lieten ,  Ward van der Tempel ,  Maarten De Bock ,  Jakub Raczkowski

IPC: H04N23/88 ,  H01L27/146 ,  G01J3/26 ,  G02B26/00

CPC classification number: H04N23/88 ,  G01J3/26 ,  G02B26/001 ,  H01L27/14621

Abstract: A system for imaging a scene, includes a plurality of optical sensors arranged on an integrated circuit and a plurality of sets of interference filters, where each set of interference filters of the plurality of sets of interference filters includes a plurality of interference filters that are arranged in a pattern and each interference filter of the plurality of filters is configured to pass light in a different wavelength range, where each set of interference filters of the plurality of interference filters is associated with a spatial area of the scene. The system includes a plurality of rejection filters arranged in a pattern under each set of interference filters, where each rejection filter of the plurality of rejection filters is configured to substantially reject light of predetermined wavelengths. The system further includes one or more processors adapted to provide a spectral response for a spatial area of the scene associated with the set of interference filters.

公开(公告)号：US20230082539A1

公开(公告)日：2023-03-16

申请号：US18051166

申请日：2022-10-31

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Ruben Lieten ,  Ward van der Tempel ,  Maarten De Bock ,  Jakub Raczkowski

IPC: G01J3/28 ,  G01J3/26

Abstract: A method begins by generating a received light spectrum at time T1 for a scene using a spectral imager that includes a plurality of spectral sensors, where a spectral sensor includes a spectral filter overlaying one or more first optical sensors and the sensing range for the plurality of spectral sensors together include a spectrum of wavelength and outputting information representative of a spectral image for the scene at T1 to a processing module. The method continues by using an image sensor to image the scene at time T2, where the image sensor includes a plurality of second optical sensors, and outputting information representative of an image of the scene at T2 to the processing module where the image of the scene has a spatial resolution that is higher than the spatial resolution of the spectral image. The method continues by producing a combined spectral image based on the information representative of a spectral image for the scene at T1 and the information representative of the image at T2 and correcting, based on the combined spectral image, an illuminant for one or more spatial areas of the scene to produce a corrected spectral image.

公开(公告)号：US20220352215A1

公开(公告)日：2022-11-03

申请号：US17657793

申请日：2022-04-04

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Ruben Lieten ,  Maarten De Bock ,  Ward van der Tempel

IPC: H01L27/146 ,  G02B5/28

Abstract: A sensor system includes a plurality of optical sensors implemented in a pixel layer of an integrated circuit and a plurality of sets of optical filters implemented proximal to the pixel layer in a plurality of alternating filter layers. An optical filter of a set of optical filters includes a plurality of filter components implemented in a stack and is configured to pass a respective target wavelength range of light to one or more optical sensors of the plurality of optical sensors. One or more filter components of the plurality of filter components in a filter layer of the plurality of filter layers is common to a plurality of optical filters of a set of optical filters.

公开(公告)号：US12078538B2

公开(公告)日：2024-09-03

申请号：US17649364

申请日：2022-01-30

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Maarten De Bock ,  Ward van der Tempel ,  Jeroen Hermans

IPC: G01J3/28 ,  G01J3/02

CPC classification number: G01J3/2823 ,  G01J3/0275

Abstract: An imaging system includes a plurality of optical sensors arranged on an integrated circuit in an array with a plurality of rows and a plurality of columns. The system includes an interface communicating with the plurality of optical sensors, memory storing operational instructions and processing circuitry configured to sample an image using the plurality of optical sensors in a first mode and sample at least a portion of the image sequentially on a row-by-row basis at a predetermined sampling rate in a second mode to produce row by row sample outputs. The processing circuitry is further configured to initiate sampling at least some rows of the plurality of rows of optical sensors using different time stamps.

公开(公告)号：US20230402485A1

公开(公告)日：2023-12-14

申请号：US18313932

申请日：2023-05-08

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Maarten De Bock

IPC: H01L27/146

CPC classification number: H01L27/14645 ,  H01L27/14621 ,  H01L27/14625

Abstract: A system for imaging includes an array of optical sensors having a respective top surface and a respective bottom surface and a first plurality of sets of optical filters, each set of optical filters of the first plurality of sets of optical filters being associated with a respective set of optical sensors of the array. The system further includes a second plurality of sets of optical filters, each set of optical filters of the second plurality of sets of optical filters being associated with a respective set of optical sensors of the array, each optical filter of a set of optical filters of the second plurality of sets of optical filters configured to pass light of a respective wavelength range, where the second plurality of sets of optical filters are interspersed spatially across the top surface of the array of optical sensors. Finally, the system includes one or more processors adapted to sample an image of a scene based on an output from a first plurality of sets of optical sensors of the array and sample a received light spectrum for each set of optical sensors of a second plurality of sets of optical sensors of the array.

公开(公告)号：US20220244104A1

公开(公告)日：2022-08-04

申请号：US17646386

申请日：2021-12-29

Applicant: Spectricity

Inventor： Jakub Raczkowski ,  Ward van der Tempel ,  Ruben Lieten ,  Jonathan Borremans ,  Maarten De Bock ,  Peter van Wesemael

IPC: G01J3/51 ,  H01L27/146

Abstract: A sensor system provides a plurality of sets of optical sensors configured in a layer and a plurality of sets of optical filters configured in a layer, where the bottom surface of the plurality of sets of optical filters is located proximal to the top surface of the plurality of sets of optical sensors and where a set of optical filters of the plurality of sets of optical filters includes a plurality of optical filters that are arranged in a pattern so that at least some optical filters of the plurality of optical filters are configured to pass light in a different wavelength range. The sensor system provides one or more rejection filters configured as a layer and a first set of optical elements, where the one or more rejection filters and the first set of optical elements are configured in a stack that is located above the top layer of the plurality of sets of optical filters. The sensor system includes one or more processing modules configured to receive an output from each optical sensor of the plurality of sets of optical sensors and generate a spectral response based on the output.

公开(公告)号：US20220115428A1

公开(公告)日：2022-04-14

申请号：US17447495

申请日：2021-09-13

Applicant: Spectricity

Inventor： Jonathan Borremans

IPC: H01L27/146 ,  G02B5/28 ,  G02B5/22

Abstract: An imaging device includes a plurality of optical sensors on an integrated circuit and a plurality of sets of interference filters, where a set of interference filters of the plurality of sets of interference filters includes a plurality of interference filters that are arranged in a pattern with each interference filter of a set of filters being configured to pass light in a different wavelength range. A plurality of sets of absorption filters is included, with a set of absorption filters of the plurality of sets of absorption filters including a plurality of absorption filters arranged in a pattern and each absorption filter is associated with one or more interference filters to create an absorption filter and interference filter pair. Each absorption filter and interference filter pair is associated with one or more optical sensors and is configured to pass light in a narrower wavelength range than the absorption filter alone.

公开(公告)号：US20210285821A1

公开(公告)日：2021-09-16

申请号：US17170127

申请日：2021-02-08

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Jakub Raczkowski ,  Maarten De Bock ,  Ward van der Tempel

IPC: G01J3/51 ,  G01J3/02

Abstract: An spectral sensor system includes an array of optical sensors arranged on an integrated circuit, an interface between the plurality of optical sensors and a first processing device, a plurality of sets of optical filters configured as a layer located atop the plurality of optical sensors, with each set of optical filters including a plurality of optical filters, each optical filter configured to pass light in a different wavelength range. The spectral sensor system includes a memory configured to interface with the first processing device, the memory configured to store calibration data associated with the plurality of sets of optical sensors. The spectral sensor system further includes second processing device includes an artificial neural network configured to correct a spectral response generated by the plurality of optical sensors and an interface between the first processing device and the second processing device is configured to transmit information therebetween.

公开(公告)号：US20240115171A1

公开(公告)日：2024-04-11

申请号：US18389997

申请日：2023-12-20

Applicant: Spectricity

Inventor： Jonathan Borremans ,  Maarten De Bock ,  Jakub Raczkowski

IPC: A61B5/1455 ,  A61B5/00 ,  G06N3/067 ,  G06N3/08

CPC classification number: A61B5/1455 ,  A61B5/443 ,  G06N3/067 ,  G06N3/08 ,  A61B2562/0238 ,  A61B2562/046

Abstract: A method for one or more modules of one or more processors of a spectral sensor system begins by receiving a plurality of synthetic spectra, where a synthetic spectrum of the plurality of synthetic spectra includes one or more known deviations from a reference spectrum. The method continues by generating a spectral output for each synthetic spectrum of the plurality of synthetic spectra and then training an artificial intelligence engine, using the combined spectral output to generate a trained neural network. The method then continues by calibrating, based on the trained neural network, a spectral response generated by another spectral sensor.