公开(公告)号：US20140253713A1

公开(公告)日：2014-09-11

申请号：US14351028

申请日：2012-05-14

申请人： Guangjie Zhai ,  Wenkai Yu ,  Xuefeng Liu ,  Xuri Yao ,  Chao Wang ,  Zhibin Sun

发明人： Guangjie Zhai ,  Wenkai Yu ,  Xuefeng Liu ,  Xuri Yao ,  Chao Wang ,  Zhibin Sun

IPC分类号： G01N21/25 ,  G01N21/64 ,  G01N21/17

CPC分类号： G01N21/255 ,  G01J1/0414 ,  G01J1/4228 ,  G01N21/17 ,  G01N21/6456 ,  G01S7/4816 ,  G01S7/486 ,  G01S17/89 ,  G02B26/0833 ,  H03K21/38

摘要： A single-photon or ultra-weak light multi-D imaging spectral system and method. In order to realize rough time resolution, a time-resolved single-photon counting 2D imaging system for forming color or grey imaging is provided. Moreover, in order to realize high-precision time resolution, the system comprises a light source, an imaging spectral measurement unit, an electric detection unit, a system control unit and an algorithm unit. The light carrying information of an object is imaged on a spatial light modulator and randomly modulated according to compressed sensing theory, emergent light of a grating is collected using a point or array single-photon detector, the number of photons and photon arrival time are recorded, and reconstruction is carried out using the compressed sensing algorithm and related algorithm of the spectral imaging. The system provides single-photon detection sensitivity, high time resolution and wide spectral range, and can be applied in numerous new high-tech industries.

摘要翻译： 单光子或超弱光多D成像光谱系统及方法。 为了实现粗糙的时间分辨率，提供了用于形成彩色或灰度成像的时间分辨的单光子计数2D成像系统。 此外，为了实现高精度时间分辨率，该系统包括光源，成像光谱测量单元，电检测单元，系统控制单元和算法单元。 物体的光携带信息在空间光调制器上成像，并且根据压缩感测理论随机调制，使用点或阵列单光子检测器收集光栅的出射光，记录光子数和光子到达时间 ，并利用压缩感知算法和相关的光谱成像算法进行重建。 该系统提供单光子检测灵敏度高，时间分辨率高，光谱范围广，可应用于众多新兴高科技行业。

公开(公告)号：US09448162B2

公开(公告)日：2016-09-20

申请号：US14351028

申请日：2012-05-14

申请人： Guangjie Zhai ,  Wenkai Yu ,  Xuefeng Liu ,  Xuri Yao ,  Chao Wang ,  Zhibin Sun

发明人： Guangjie Zhai ,  Wenkai Yu ,  Xuefeng Liu ,  Xuri Yao ,  Chao Wang ,  Zhibin Sun

IPC分类号： G01N21/25 ,  G01N21/64 ,  G01N21/17 ,  H03K21/38 ,  G01J1/04 ,  G01J1/42 ,  G01S17/89 ,  G01S7/481 ,  G01S7/486 ,  G02B26/08

CPC分类号： G01N21/255 ,  G01J1/0414 ,  G01J1/4228 ,  G01N21/17 ,  G01N21/6456 ,  G01S7/4816 ,  G01S7/486 ,  G01S17/89 ,  G02B26/0833 ,  H03K21/38

摘要： A single-photon or ultra-weak light multi-D imaging spectral system and method. In order to realize rough time resolution, a time-resolved single-photon counting 2D imaging system for forming color or grey imaging is provided. Moreover, in order to realize high-precision time resolution, the system comprises a light source, an imaging spectral measurement unit, an electric detection unit, a system control unit and an algorithm unit. The light carrying information of an object is imaged on a spatial light modulator and randomly modulated according to compressed sensing theory, emergent light of a grating is collected using a point or array single-photon detector, the number of photons and photon arrival time are recorded, and reconstruction is carried out using the compressed sensing algorithm and related algorithm of the spectral imaging. The system provides single-photon detection sensitivity, high time resolution and wide spectral range, and can be applied in numerous new high-tech industries.

摘要翻译： 单光子或超弱光多D成像光谱系统及方法。 为了实现粗糙的时间分辨率，提供了用于形成彩色或灰度成像的时间分辨的单光子计数2D成像系统。 此外，为了实现高精度时间分辨率，该系统包括光源，成像光谱测量单元，电检测单元，系统控制单元和算法单元。 物体的光携带信息在空间光调制器上成像，并且根据压缩感测理论随机调制，使用点或阵列单光子检测器收集光栅的出射光，记录光子数和光子到达时间 ，并利用压缩感知算法和相关的光谱成像算法进行重建。 该系统提供单光子检测灵敏度高，时间分辨率高，光谱范围广，可应用于众多新兴高科技行业。

公开(公告)号：US20130341487A1

公开(公告)日：2013-12-26

申请号：US14000421

申请日：2012-04-23

申请人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

发明人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

IPC分类号： G01J1/44

CPC分类号： G01J1/44 ,  G01J1/0414 ,  G01J1/42 ,  G01J2001/442

摘要： The invention relates to a single-photon counting imaging system and a single-photon counting imaging method. The system comprises a optical filter, a first lens, a digital micro-mirror device (DMD) control system, a second lens, a single-photon counter and a data processing unit, where the DMD together with the first lens and the second lens are used for converting two-dimensional image data into a one-dimensional sequence to complete sampling of measured signals; the ultra-weak light is filtered by the optical filter, after which the ultra-weak light image onto the DMD through the first lens, and the DMD control system controls the probability of the photons reflected to the second lens and the second lens controls the focusing of the photons; and the data processing unit together with the single-photon counter to complete sparse reconstruction, and the data processing unit converts the number of photons counted by the single-photon counter within a certain period of time into the probability of detected photon counts, as the measured value, and a photon density image is reconstructed by adopting an optimization algorithm based on the measurement matrix on the DMD and the measured value, thereby solving out the two-dimensional image.

摘要翻译： 本发明涉及单光子计数成像系统和单光子计数成像方法。 该系统包括滤光器，第一透镜，数字微镜装置（DMD）控制系统，第二透镜，单光子计数器和数据处理单元，其中DMD与第一透镜和第二透镜 用于将二维图像数据转换为一维序列以完成测量信号的采样; 超弱光被滤光器滤光，之后通过第一透镜将超弱光图像输送到DMD上，并且DMD控制系统控制反射到第二透镜的光子的概率，而第二透镜控制第二透镜 聚焦光子; 和数据处理单元与单光子计数器一起完成稀疏重建，数据处理单元将在一定时间段内由单光子计数器计数的光子数转换为检测到的光子计数的概率，如 通过采用基于DMD测量矩阵的优化算法和测量值来重构光子密度图像，从而求出二维图像。

公开(公告)号：US08723130B2

公开(公告)日：2014-05-13

申请号：US14000421

申请日：2012-04-23

申请人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

发明人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

IPC分类号： G01T1/00

CPC分类号： G01J1/44 ,  G01J1/0414 ,  G01J1/42 ,  G01J2001/442

摘要： A single-photon counting imaging system and method includes an optical filter, first and second lenses, a digital micro-mirror device (DMD) control system, a single-photon counter and a data processing unit. The DMD and first and second lenses convert two-dimensional image data into a one-dimensional sequence. The ultra-weak light is filtered by the optical filter, after which the ultra-weak light image onto the DMD through the first lens. The DMD controls the probability of the photons reflected to the second lens and the second lens controls focusing of the photons. The data processing unit and single-photon counter complete sparse reconstruction. The data processing unit converts the number of photons counted by the single-photon counter within a certain period of time into the probability of detected photon counts. A photon density image is reconstructed by adopting an optimization algorithm based on the measurement matrix on the DMD and the measured value.

摘要翻译： 单光子计数成像系统和方法包括滤光器，第一和第二透镜，数字微镜器件（DMD）控制系统，单光子计数器和数据处理单元。 DMD和第一和第二透镜将二维图像数据转换为一维序列。 超弱光被滤光器滤光，此后超弱光图像通过第一透镜到DMD上。 DMD控制反射到第二透镜的光子的概率，而第二透镜控制光子的聚焦。 数据处理单元和单光子计数器完成稀疏重建。 数据处理单元将在一定时间段内由单光子计数器计数的光子数转换成检测到的光子计数的概率。 通过采用基于DMD测量矩阵和测量值的优化算法重构光子密度图像。

公开(公告)号：US09807317B2

公开(公告)日：2017-10-31

申请号：US14113250

申请日：2012-04-23

申请人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

发明人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

IPC分类号： H04N5/30 ,  G01J3/28 ,  G01J3/00 ,  G02F1/01 ,  G01N21/76 ,  G01J1/42 ,  A61B5/00 ,  G01N21/64 ,  G01J1/44

CPC分类号： H04N5/30 ,  A61B5/0075 ,  G01J1/42 ,  G01J3/2803 ,  G01J3/2823 ,  G01J2001/442 ,  G01J2003/2826 ,  G01N21/6452 ,  G01N21/763

摘要： An ultra-weak light multispectral imaging method and an ultra-weak light multispectral imaging system, which can realize multispectral two-dimensional imaging of an ultra-weak light object by constituting a linear array from single-photon detectors of all response wavelengths and combining it with light-splitting technology. The ultra-weak light multispectral two-dimensional imaging system realizes high-resolution optical modulation by adopting the compressive sensing (CS) theory and the digital light processing (DLP) technology and using a linear array single-photon detector as a detection element; the ultra-weak light multispectral two-dimensional imaging system comprises a light filter, a first lens (1), a DMD control system, a second lens, a spectrophotometer, a linear array single-photon detector consisting of a plurality of single-photon detectors with different response wavelengths, and a central processing unit; and the sensitivity of the system can reach the single-photon level. The invention can be widely applied in the fields of biological self-illumination, medical diagnosis, nondestructive material analysis, astronomical observation, national defense and military, spectral measurement, quantum electronics and the like.

公开(公告)号：US20140043486A1

公开(公告)日：2014-02-13

申请号：US14113250

申请日：2012-04-23

申请人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

发明人： Guangjie Zhai ,  Keming Du ,  Chao Wang ,  Wenkai Yu

IPC分类号： H04N5/30

CPC分类号： H04N5/30 ,  A61B5/0075 ,  G01J1/42 ,  G01J3/2803 ,  G01J3/2823 ,  G01J2001/442 ,  G01J2003/2826 ,  G01N21/6452 ,  G01N21/763

摘要： An ultra-weak light multispectral imaging method and an ultra-weak light multispectral imaging system, which can realize multispectral two-dimensional imaging of an ultra-weak light object by constituting a linear array from single-photon detectors of all response wavelengths and combining it with light-splitting technology. The ultra-weak light multispectral two-dimensional imaging system realizes high-resolution optical modulation by adopting the compressive sensing (CS) theory and the digital light processing (DLP) technology and using a linear array single-photon detector as a detection element; the ultra-weak light multispectral two-dimensional imaging system comprises a light filter, a first lens (1), a DMD control system, a second lens, a spectrophotometer, a linear array single-photon detector consisting of a plurality of single-photon detectors with different response wavelengths, and a central processing unit; and the sensitivity of the system can reach the single-photon level. The invention can be widely applied in the fields of biological self-illumination, medical diagnosis, nondestructive material analysis, astronomical observation, national defense and military, spectral measurement, quantum electronics and the like.

摘要翻译： 一种超弱光多光谱成像方法和超弱光多光谱成像系统，可以通过从所有响应波长的单光子检测器构成线性阵列并结合其实现超弱光物体的多光谱二维成像 采用分光技术。 超弱光多光谱二维成像系统采用压缩感知（CS）理论和数字光处理（DLP）技术实现高分辨率光学调制，并采用线性阵列单光子检测器作为检测元件; 超弱光多光谱二维成像系统包括滤光器，第一透镜（1），DMD控制系统，第二透镜，分光光度计，由多个单光子组成的线性阵列单光子检测器 具有不同响应波长的检测器，以及中央处理单元; 并且系统的灵敏度可以达到单光子水平。 本发明可广泛应用于生物自身照明，医疗诊断，无损材料分析，天文观测，国防军事，光谱测量，量子电子等领域。