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    • 8. 发明公开
    • TIME-RESOLVED SINGLE-PHOTON OR ULTRA-WEAK LIGHT MULTI-DIMENSIONAL IMAGING SPECTRUM SYSTEM AND METHOD
    • FOR TIME图片系统和方法解出的单光子或超弱光多维的一个范围
    • EP2755327A1
    • 2014-07-16
    • EP12843969.2
    • 2012-05-14
    • Center For Space Science And Applied Research, Chinese Academy of Sciences
    • ZHAI, GuangjieYU, WenkaiLIU, XuefengYAO, XuriWANG, ChaoSUN, Zhibin
    • H03K21/00
    • G01N21/255G01J1/0414G01J1/4228G01N21/17G01N21/6456G01S7/4816G01S7/486G01S17/89G02B26/0833H03K21/38
    • The invention provides a time-resolved single-photon or ultra-weak light multi-D imaging spectral system and a time-resolved single-photon or ultra-weak light multi-D imaging spectral method. On the one hand, in order to realize rough time resolution, the invention provides a time-resolved single-photon counting 2D imaging system for forming color or grey imaging. Moreover, in order to realize high-precision time resolution, the multi-D imaging system provided in the invention mainly comprises a light source, an imaging spectral measurement unit, an electric detection unit, a system control unit and an algorithm unit, wherein the light carrying the information of an object is imaged on a spatial light modulator and randomly modulated according to the compressed sensing theory, the emergent light of a grating is collected by using a point or array single-photon detector, meanwhile, the number of photons and the photon arrival time are recorded, and reconstruction is carried out by using the compressed sensing algorithm and the related algorithm of the spectral imaging. The system has the advantages of single-photon detection sensitivity, high time resolution and wide spectral range, and can be widely applied in the areas of numerous new high-tech industries such as unicellular biophysics and material defect detection.
    • 本发明提供一种时间分辨的单光子或极弱光多光谱成像; D系统和时间分辨单光子或极弱光多-D成像的光谱方法。 在一方面,为了实现粗略的时间分辨率,本发明提供用于形成彩色或灰色成像的时间分辨单光子计数2D成像系统。 更完了,为了实现高精度的时间分辨率,在本发明提供的多-D成像系统主要包括上光谱测量机构,拍摄到电检测单元,系统控制单元和算法单元,worin所涉及的光源 光承载的物体的信息被成像在一个空间光调制器和随机调制雅丁到压缩传感理论,光栅的出射光,通过使用点或阵列单光子探测器收集,同时,光子的数量和 光子到达时间被记录,并且重建,通过使用压缩传感算法和光谱成像的相关算法执行。 该系统具有单光子探测灵敏度,高的时间分辨率和宽的光谱范围的优点,并且可以在许多新的高科技产业等领域得到广泛应用:如单细胞生物物理学和材料缺陷检测。
    • 9. 发明公开
    • MULTI-SPECTRAL IMAGING METHOD FOR ULTRAWEAK PHOTON EMISSION AND SYSTEM THEREOF
    • 多媒体技术ABBILDUNGSVERFAHRENFÜRULTRASCHWACHE PHOTONENEMISSION UND SYSTEM DAMIT
    • EP2728324A1
    • 2014-05-07
    • EP12802420.5
    • 2012-04-23
    • Center For Space Science And Applied Research, Chinese Academy of Sciences
    • ZHAI, GuangjieDU, KemingWANG, ChaoYU, Wenkai
    • G01J3/36G01J3/28G01J3/12G01J3/51
    • H04N5/30A61B5/0075G01J1/42G01J3/2803G01J3/2823G01J2001/442G01J2003/2826G01N21/6452G01N21/763
    • The invention relates to 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 (6), a first lens (1), a DMD control system (7), a second lens (2), a spectrophotometer (3), a linear array single-photon detector(4) consisting of a plurality of single-photon detectors with different response wavelengths, and a central processing unit (5); 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.
    • 本发明涉及超弱光多光谱成像方法和超弱光多光谱成像系统,其可以通过从所有响应的单光子检测器构成线性阵列来实现超弱光物体的多光谱二维成像 波长并结合光分解技术。 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光滤波器(6),第一透镜(1),DMD控制系统(7),第二透镜(2),分光光度计(3),线性阵列 由具有不同响应波长的多个单光子检测器组成的单光子检测器(4)和中央处理单元(5); 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照射,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。
    • 10. 发明公开
    • SINGLE PHOTON-COUNTING IMAGING SYSTEM AND METHOD THEREOF
    • 单光子计数成像系统及其方法
    • EP2685227A1
    • 2014-01-15
    • EP12776896.8
    • 2012-04-23
    • Center For Space Science And Applied Research, Chinese Academy of Sciences
    • ZHAI, GuangjieDU, KemingWANG, ChaoYU, Wenkai
    • G01J11/00
    • G01J1/44G01J1/0414G01J1/42G01J2001/442
    • The invention relates to a single-photon counting imaging system and a single-photon counting imaging method. The system comprises a light filter, a first lens (1), a digital micro-mirror device (DMD) control system, a second lens (2), a single-photon counter and a data processing unit, wherein the DMD together with the first lens (1) and the second lens (2), is used for converting two-dimensional image data into a one-dimensional sequence to complete compressive sampling of signals to be measured; the stray light in the ultra-weak light is filtered through the light filter, after which the ultra-weak light forms an image at the DMD control system through the first lens (1), the DMD control system controls the probability that photons are reflected to the second lens (2) and the second lens (2) controls the focusing of the photons; and the data processing unit together with the single-photon counter to 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, as the measured value, and a photon density image is reconstructed by adopting an optimization algorithm applied to a measurement matrix on the DMD control system and the measured value, thereby solving out the two-dimensional image.
    • 单光子计数成像系统和单光子计数成像方法本发明涉及单光子计数成像系统和单光子计数成像方法。 该系统包括滤光片,第一透镜(1),数字微镜器件(DMD)控制系统,第二透镜(2),单光子计数器和数据处理单元,其中DMD与 第一透镜(1)和第二透镜(2)用于将二维图像数据转换为一维序列,完成待测信号的压缩采样; 超弱光中的杂散光通过滤光器被过滤,然后超弱光通过第一透镜(1)在DMD控制系统处形成图像,DMD控制系统控制光子被反射的概率 到第二透镜(2)和第二透镜(2)控制光子的聚焦; 并且数据处理单元与单光子计数器一起完成稀疏重建时,数据处理单元将由单光子计数器在特定时间段内计数的光子的数量转换为检测到的光子计数的概率,如所测量的 值,并通过采用应用于DMD控制系统上的测量矩阵的优化算法和测量值来重建光子密度图像,从而解出二维图像。