High-speed event detection using a compressive-sensing hyperspectral-imaging architecture
    1.
    发明授权
    High-speed event detection using a compressive-sensing hyperspectral-imaging architecture 有权
    使用压缩感测高光谱成像架构的高速事件检测

    公开(公告)号:US09325947B2

    公开(公告)日:2016-04-26

    申请号:US13664289

    申请日:2012-10-30

    CPC classification number: H04N7/18 H04N5/232 H04N5/335

    Abstract: A compressive imaging system and method for quickly detecting spectrally and spatially localized events (such as explosions or gun discharges) occurring within the field of view. An incident light stream is modulated with a temporal sequence of spatial patterns. The wavelength components in the modulated light stream are spatially separated, e.g., using a diffractive element. An array of photodetectors is used to convert subsets of the wavelength components into respective signals. An image representing the field of view may be reconstructed based on samples from some or all the signals. A selected subset of the signals are monitored to detect event occurrences, e.g., by detecting sudden changes in intensity. When the event is detected, sample data from the selected subset of signals may be analyzed to determine the event location within the field of view. The event location may be highlighted in an image being generated by the imaging system.

    Abstract translation: 一种压缩成像系统和方法,用于快速检测在视场内发生的光谱和空间局部化事件(例如爆炸或喷枪排放)。 入射光流以空间模式的时间序列调制。 调制光流中的波长分量在空间上分离,例如使用衍射元件。 一组光电检测器用于将波长分量的子集转换为相应的信号。 可以基于来自一些或所有信号的样本来重构表示视场的图像。 监视所选信号的子集以检测事件发生,例如通过检测强度的突然变化。 当检测到事件时,可以分析来自所选择的信号子集的采样数据,以确定视场内的事件位置。 可以在由成像系统生成的图像中突出显示事件位置。

    Overlap patterns and image stitching for multiple-detector compressive-sensing camera
    2.
    发明授权
    Overlap patterns and image stitching for multiple-detector compressive-sensing camera 有权
    多重检测器压缩感应摄像机的重叠图案和图像拼接

    公开(公告)号:US08970740B2

    公开(公告)日:2015-03-03

    申请号:US14106542

    申请日:2013-12-13

    CPC classification number: G06T5/001 G06T5/50 G06T2207/10052 G06T2207/20212

    Abstract: A mechanism for reconstructing sub-images based on measurement data acquired by an imaging system including an array of light modulating elements and an array of photodetectors. Each sub-image is reconstructed based on samples from a respective photodetector and a respective set of measurement patterns defined on a respective virtual sub-region on the modulating array. Each virtual sub-region is configured to include at least the light modulating elements that are able to send a non-trivial amount of light to the respective photodetector during a pattern application period. The virtual sub-regions overlap because many light modulating elements are capable of sending light to more than one photodetector. Whenever a measurement pattern of one virtual sub-region overlaps the measurement pattern of a neighboring virtual sub-region, the two measurement patterns agree by design. Thus, the measurement patterns for the collection of virtual sub-regions combine to form a pattern on the whole modulating array.

    Abstract translation: 一种用于基于由包括光调制元件阵列和光电检测器阵列的成像系统获取的测量数据重建子图像的机构。 基于来自相应光电检测器的样本和在调制阵列上的相应虚拟子区域上定义的相应的一组测量图案重建每个子图像。 每个虚拟子区域被配置为至少包括能够在图案应用周期期间向相应光电检测器发送不平凡量的光的光调制元件。 虚拟子区域重叠,因为许多光调制元件能够向多于一个的光电检测器发送光。 每当一个虚拟子区域的测量图案与相邻虚拟子区域的测量图案重叠时,两个测量图案被设计一致。 因此,用于收集虚拟子区域的测量模式组合在整个调制阵列上形成图案。

    Dual-port measurements of light reflected from micromirror array
    3.
    发明授权
    Dual-port measurements of light reflected from micromirror array 有权
    从微镜阵列反射的光的双端口测量

    公开(公告)号:US08717466B2

    公开(公告)日:2014-05-06

    申请号:US14017834

    申请日:2013-09-04

    Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.

    Abstract translation: 捕获接收的光流的压缩感测(CS)测量的成像系统和方法,并且还获得背景光级(BGLL)的样本。 BGLL样本可用于补偿BGLL中的变化的CS测量。 该系统包括:用空间模式对接收到的光流进行空间调制的光调制器,以及将调制光流集中到光检测器上的透镜。 BGLL的样本可以以各种方式获得:(a)在空间图案之间注入校准图案; (b)测量由数字微镜反射到辅助输出路径上的互补光; (c)分离和测量来自光学输入路径的一部分光; (d)CS测量的低通滤波; 和(e)使用具有其自己的独立输入路径的光功率计。 此外,CS测量可以被高通滤波以衰减背景光的变化。

    Dual-Port Measurements of Light Reflected from Micromirror Array
    4.
    发明申请
    Dual-Port Measurements of Light Reflected from Micromirror Array 有权
    从微镜阵列反射的光的双端口测量

    公开(公告)号:US20140009638A1

    公开(公告)日:2014-01-09

    申请号:US14017834

    申请日:2013-09-04

    Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.

    Abstract translation: 捕获接收的光流的压缩感测(CS)测量的成像系统和方法,并且还获得背景光级(BGLL)的样本。 BGLL样本可用于补偿BGLL中的变化的CS测量。 该系统包括:用空间模式对接收到的光流进行空间调制的光调制器,以及将调制光流集中到光检测器上的透镜。 BGLL的样本可以以各种方式获得:(a)在空间图案之间注入校准图案; (b)测量由数字微镜反射到辅助输出路径上的互补光; (c)分离和测量来自光学输入路径的一部分光; (d)CS测量的低通滤波; 和(e)使用具有其自己的独立输入路径的光功率计。 此外,CS测量可以被高通滤波以衰减背景光的变化。

    Dedicated Power Meter to Measure Background Light Level in Compressive Imaging System
    5.
    发明申请
    Dedicated Power Meter to Measure Background Light Level in Compressive Imaging System 有权
    专用功率计测量压缩成像系统中的背景光级

    公开(公告)号:US20140002721A1

    公开(公告)日:2014-01-02

    申请号:US14017581

    申请日:2013-09-04

    Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.

    Abstract translation: 捕获接收的光流的压缩感测(CS)测量的成像系统和方法,并且还获得背景光级(BGLL)的样本。 BGLL样本可用于补偿BGLL中的变化的CS测量。 该系统包括:用空间模式对接收到的光流进行空间调制的光调制器,以及将调制光流集中到光检测器上的透镜。 BGLL的样本可以以各种方式获得:(a)在空间图案之间注入校准图案; (b)测量由数字微镜反射到辅助输出路径上的互补光; (c)分离和测量来自光学输入路径的一部分光; (d)CS测量的低通滤波; 和(e)使用具有其自己的独立输入路径的光功率计。 此外,CS测量可以被高通滤波以衰减背景光的变化。

    Simplified compressive sensing spectral imager

    公开(公告)号:US09880054B2

    公开(公告)日:2018-01-30

    申请号:US14341361

    申请日:2014-07-25

    Inventor: Lenore McMackin

    Abstract: A method for designing a spectral sensing device. The method includes: (1) performing computational operations on a computer, wherein the computational operations determine the positions of diffracted orders of an optical system model that models at least an array of light modulating elements and a diffraction grating, wherein the diffracted orders correspond to respective spectral components of input light to the optical system model, wherein the positions of the diffracted orders are determined at a target plane of the optical system model; and (2) storing the positions of the diffracted orders in a memory, wherein the positions determine corresponding locations for light detectors in the spectral sensing device. The spectral sensing device may be assembled by modifying an existing single pixel camera, i.e., by adding the diffraction grating and adding the light detectors respectively at said positions of the diffracted orders.

    Simplified Compressive Sensing Spectral Imager
    7.
    发明申请
    Simplified Compressive Sensing Spectral Imager 有权
    简化压缩感应光谱成像仪

    公开(公告)号:US20150029503A1

    公开(公告)日:2015-01-29

    申请号:US14341361

    申请日:2014-07-25

    Inventor: Lenore McMackin

    Abstract: A method for designing a spectral sensing device. The method includes: (1) performing computational operations on a computer, wherein the computational operations determine the positions of diffracted orders of an optical system model that models at least an array of light modulating elements and a diffraction grating, wherein the diffracted orders correspond to respective spectral components of input light to the optical system model, wherein the positions of the diffracted orders are determined at a target plane of the optical system model; and (2) storing the positions of the diffracted orders in a memory, wherein the positions determine corresponding locations for light detectors in the spectral sensing device. The spectral sensing device may be assembled by modifying an existing single pixel camera, i.e., by adding the diffraction grating and adding the light detectors respectively at said positions of the diffracted orders.

    Abstract translation: 一种用于设计光谱感测装置的方法。 该方法包括:(1)在计算机上执行计算操作,其中计算操作确定对至少一组光调制元件和衍射光栅进行建模的光学系统模型的衍射级的位置,其中衍射级对应于 对光学系统模型的输入光的各个频谱分量,其中在光学系统模型的目标平面处确定衍射级的位置; 和(2)将衍射级的位置存储在存储器中,其中这些位置确定光谱感测装置中光检测器的对应位置。 光谱感测装置可以通过修改现有的单像素照相机,即通过添加衍射光栅并将光检测器分别添加到衍射阶的所述位置来组装。

    Dedicated power meter to measure background light level in compressive imaging system
    8.
    发明授权
    Dedicated power meter to measure background light level in compressive imaging system 有权
    专用功率计测量压缩成像系统中的背景光级

    公开(公告)号:US08885073B2

    公开(公告)日:2014-11-11

    申请号:US14017581

    申请日:2013-09-04

    Abstract: An imaging system and method that captures compressive sensing (CS) measurements of a received light stream, and also obtains samples of background light level (BGLL). The BGLL samples may be used to compensate the CS measurements for variations in the BGLL. The system includes: a light modulator to spatially modulate the received light stream with spatial patterns, and a lens to concentrate the modulated light stream onto a light detector. The samples of BGLL may be obtained in various ways: (a) injecting calibration patterns among the spatial patterns; (b) measuring complementary light reflected by digital micromirrors onto a secondary output path; (c) separating and measuring a portion of light from the optical input path; (d) low-pass filtering the CS measurements; and (e) employing a light power meter with its own separate input path. Also, the CS measurements may be high-pass filtered to attenuate background light variation.

    Abstract translation: 捕获接收的光流的压缩感测(CS)测量的成像系统和方法,并且还获得背景光级(BGLL)的样本。 BGLL样本可用于补偿BGLL中的变化的CS测量。 该系统包括:用空间模式对接收到的光流进行空间调制的光调制器,以及将调制光流集中到光检测器上的透镜。 BGLL的样本可以以各种方式获得:(a)在空间图案之间注入校准图案; (b)测量由数字微镜反射到辅助输出路径上的互补光; (c)分离和测量来自光学输入路径的一部分光; (d)CS测量的低通滤波; 和(e)使用具有其自己的独立输入路径的光功率计。 此外,CS测量可以被高通滤波以衰减背景光的变化。

    OVERLAP PATTERNS AND IMAGE STITCHING FOR MULTIPLE-DETECTOR COMPRESSIVE-SENSING CAMERA
    9.
    发明申请
    OVERLAP PATTERNS AND IMAGE STITCHING FOR MULTIPLE-DETECTOR COMPRESSIVE-SENSING CAMERA 有权
    多重检测器压缩感应摄像机的重叠图案和图像缝合

    公开(公告)号:US20140168482A1

    公开(公告)日:2014-06-19

    申请号:US14106542

    申请日:2013-12-13

    CPC classification number: G06T5/001 G06T5/50 G06T2207/10052 G06T2207/20212

    Abstract: A mechanism for reconstructing sub-images based on measurement data acquired by an imaging system including an array of light modulating elements and an array of photodetectors. Each sub-image is reconstructed based on samples from a respective photodetector and a respective set of measurement patterns defined on a respective virtual sub-region on the modulating array. Each virtual sub-region is configured to include at least the light modulating elements that are able to send a non-trivial amount of light to the respective photodetector during a pattern application period. The virtual sub-regions overlap because many light modulating elements are capable of sending light to more than one photodetector. Whenever a measurement pattern of one virtual sub-region overlaps the measurement pattern of a neighboring virtual sub-region, the two measurement patterns agree by design. Thus, the measurement patterns for the collection of virtual sub-regions combine to form a pattern on the whole modulating array.

    Abstract translation: 一种用于基于由包括光调制元件阵列和光电检测器阵列的成像系统获取的测量数据重建子图像的机构。 基于来自相应光电检测器的样本和在调制阵列上的相应虚拟子区域上定义的相应的一组测量图案重建每个子图像。 每个虚拟子区域被配置为至少包括能够在图案应用周期期间向相应光电检测器发送不平凡量的光的光调制元件。 虚拟子区域重叠,因为许多光调制元件能够向多于一个的光电检测器发送光。 每当一个虚拟子区域的测量图案与相邻虚拟子区域的测量图案重叠时,两个测量图案被设计一致。 因此,用于收集虚拟子区域的测量模式组合在整个调制阵列上形成图案。

    HIGH-SPEED EVENT DETECTION USING A COMPRESSIVE-SENSING HYPERSPECTRAL-IMAGING ARCHITECTURE
    10.
    发明申请
    HIGH-SPEED EVENT DETECTION USING A COMPRESSIVE-SENSING HYPERSPECTRAL-IMAGING ARCHITECTURE 有权
    使用压缩感测超高速成像架构进行高速度事件检测

    公开(公告)号:US20130128042A1

    公开(公告)日:2013-05-23

    申请号:US13664289

    申请日:2012-10-30

    CPC classification number: H04N7/18 H04N5/232 H04N5/335

    Abstract: A compressive imaging system and method for quickly detecting spectrally and spatially localized events (such as explosions or gun discharges) occurring within the field of view. An incident light stream is modulated with a temporal sequence of spatial patterns. The wavelength components in the modulated light stream are spatially separated, e.g., using a diffractive element. An array of photodetectors is used to convert subsets of the wavelength components into respective signals. An image representing the field of view may be reconstructed based on samples from some or all the signals. A selected subset of the signals are monitored to detect event occurrences, e.g., by detecting sudden changes in intensity. When the event is detected, sample data from the selected subset of signals may be analyzed to determine the event location within the field of view. The event location may be highlighted in an image being generated by the imaging system.

    Abstract translation: 一种压缩成像系统和方法,用于快速检测在视场内发生的光谱和空间局部化事件(例如爆炸或喷枪排放)。 入射光流以空间模式的时间序列调制。 调制光流中的波长分量在空间上分离,例如使用衍射元件。 一组光电检测器用于将波长分量的子集转换为相应的信号。 可以基于来自一些或所有信号的样本来重构表示视场的图像。 监视所选信号的子集以检测事件发生,例如通过检测强度的突然变化。 当检测到事件时,可以分析来自所选择的信号子集的采样数据,以确定视场内的事件位置。 可以在由成像系统生成的图像中突出显示事件位置。

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