公开(公告)号：WO2015171076A1

公开(公告)日：2015-11-12

申请号：PCT/SG2015/050099

申请日：2015-05-07

Applicant: NATIONAL UNIVERSITY OF SINGAPORE

Inventor： SCHMIDT, Daniel ,  HEUSSLER, Sascha Pierre

IPC: G01N21/21 ,  G01J3/447 ,  G01J4/04

CPC classification number: G01J3/447 ,  G01J3/36 ,  G01J4/04 ,  G01N21/211 ,  G01N21/3581 ,  G01N2021/213 ,  G01N2021/3155

Abstract: A device for analysing a specimen is disclosed. The device comprises a first polarizer for polarizing a first beam of electromagnetic radiation; an optical device for directing the polarized beam of electromagnetic radiation at the specimen to enable interaction between the polarized beam of electromagnetic radiation and the specimen to cause generation of a second beam of electromagnetic radiation; a plurality of second polarizers for dividing the wavefront of the second beam of electromagnetic radiation into a plurality of beams of electromagnetic radiation polarized with different polarization states; and at least one spectrometer for analysing respective electromagnetic spectrums of the plurality of polarized beams of electromagnetic radiation to enable the specimen to be characterised. A related method is also disclosed.

Abstract translation: 公开了一种用于分析试样的装置。 该装置包括用于使第一电磁辐射束偏振的第一偏振器; 用于将电磁辐射的偏振光束引导到样品处以使得电磁辐射的偏振光束与样本之间的相互作用以产生第二电磁辐射束的光学装置; 多个第二偏振器，用于将所述第二电磁辐射束的波前划分为以不同极化状态偏振的多个电磁辐射束; 以及用于分析电磁辐射的多个偏振光束的各个电磁谱的至少一个光谱仪，以使样本得以表征。 还公开了相关方法。

公开(公告)号：WO2015088805A1

公开(公告)日：2015-06-18

申请号：PCT/US2014/067919

申请日：2014-12-01

Applicant: RAYTHEON COMPANY

Inventor： DORSCHNER, Terry

IPC: G01J3/18 ,  G01J4/04 ,  G01J3/02

CPC classification number: G01J1/0429 ,  G01J1/42 ,  G01J3/0224 ,  G01J3/18 ,  G01J3/2823 ,  G01J4/04 ,  G02F1/13473

Abstract: A programmable multifunction spectral and/or polarization imager. In one example, such an imager includes an imaging optical subsystem configured to receive electromagnetic radiation from a distant scene, a focal plane array configured to produce an image of the scene, and a programmable polarimetry subsystem electrically switchable between an ON state in which the polarimetry subsystem receives the electromagnetic radiation and provides polarized electromagnetic radiation to the focal plane array, and an OFF state in which the polarimetry system is configured as a first substantially clear aperture that passes the electromagnetic radiation to the focal plane array. In certain examples, the imager includes a programmable spectral imaging sub-system configurable between an ON state and an OFF state.

Abstract translation: 可编程多功能光谱和/或偏振成像仪。 在一个示例中，这种成像器包括：成像光学子系统，被配置为接收来自遥远场景的电磁辐射，配置成产生场景图像的焦平面阵列，以及可在ON状态之间电可切换的可编程偏振子系统， 子系统接收电磁辐射并向焦平面阵列提供极化电磁辐射，以及OFF状态，其中偏振系统被配置为将电磁辐射传递到焦平面阵列的第一基本上清晰的孔。 在某些示例中，成像器包括可在ON状态和OFF状态之间配置的可编程光谱成像子系统。

公开(公告)号：WO2015039816A1

公开(公告)日：2015-03-26

申请号：PCT/EP2014/067232

申请日：2014-08-12

Applicant: SELEX ES LTD

Inventor： PILKINGTON, Roger, Malcolm ,  WONG, Gerald ,  LAMB, Robert A. ,  SINCLAIR, Peter

IPC: H04N5/33 ,  G01J4/04

CPC classification number: G06T5/006 ,  G01J3/0205 ,  G01J3/0224 ,  G01J3/0237 ,  G01J3/12 ,  G01J3/2823 ,  G01J4/04 ,  G01J2003/1234 ,  G01J2003/2826 ,  G06T3/4053 ,  G06T7/90 ,  G06T2207/20024 ,  G06T2207/30168 ,  H04N5/2254 ,  H04N5/23232 ,  H04N5/23293 ,  H04N5/33 ,  H04N9/646 ,  H04N17/002

Abstract: A camera for polarimetric, multispectral imaging is described. Such cameras are used in photonics, computational imaging and multispectral imaging in which both multispectral and polarimetric sensing modalities are used simultaneously for detection, recognition and identification. The camera enables multiple spectral images to be recorded simultaneously using polarising beamsplitters and mirrors to divide the image according polarimetric and spectral bands. These multiple, polarised images are recorded on a single focal plane array (FPA) simultaneously. Image processing means allows for the resolution of the subsequent image to be improved.

Abstract translation: 描述了用于偏振，多光谱成像的照相机。 这种相机用于光子学，计算成像和多光谱成像，其中多光谱和极化感测模式同时用于检测，识别和识别。 相机使得能够使用偏振分束器和反射镜同时记录多个光谱图像，以根据偏振光谱和光谱带划分图像。 这些多个极化图像同时记录在单个焦平面阵列（FPA）上。 图像处理装置允许改进后续图像的分辨率。

公开(公告)号：WO2015030343A1

公开(公告)日：2015-03-05

申请号：PCT/KR2014/004267

申请日：2014-05-13

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： CHO, Yong Jai ,  CHEGAL, Won ,  CHO, Hyun Mo

IPC: G01N21/17

CPC classification number: G01N21/211 ,  G01J4/04 ,  G01N2021/213 ,  G01N2201/061 ,  G01N2201/0633 ,  G01N2201/0683 ,  G01N2201/11

Abstract: Provided is an optical element rotation type Mueller-matrix ellipsometer for solving a problem of measurement accuracy and measurement precision occurring due to residual polarization of a light source, polarization dependence of a photo-detector, measurement values of Fourier coefficients of a high order term in dual optical element rotation type Mueller-matrix ellipsometers according to the related art capable of measuring some or all of components of a Mueller-matrix for any sample.

Abstract translation: 提供一种光学元件旋转型米勒矩阵椭偏仪，用于解决由于光源的残余极化产生的测量精度和测量精度的问题，光检测器的偏振度依赖性，高阶项的傅里叶系数的测量值 根据相关技术的双光学元件旋转型米勒矩阵椭偏仪能够测量任何样品的Mueller矩阵的一些或全部组分。

公开(公告)号：WO2015025909A1

公开(公告)日：2015-02-26

申请号：PCT/JP2014/071846

申请日：2014-08-21

Applicant: 富士フイルム株式会社

Inventor： 市橋　光芳 ,  馬島　渉 ,  沖　和宏

IPC: G02B5/30 ,  G02B5/26 ,  G02F1/1335

CPC classification number: G02B5/3016 ,  G01J4/04 ,  G01J2004/001 ,  G02B27/283 ,  G02B27/286

Abstract: 　本発明により、特定の波長において右円偏光または左円偏光のいずれか一方のセンスの円偏光を選択的に透過させるための円偏光フィルターであって、上記特定の波長の上記センスの円偏光をいずれか一方の面から入射したときの散乱透過率/直透過率より、他方のセンスの円偏光を上記面から入射したときの散乱反射率/正反射率が大きい円偏光フィルターが提供される。上記円偏光フィルターは円偏光分離層を含み、上記円偏光分離層は反射光散乱性円偏光分離層を含み、さらに非反射光散乱性円偏光分離層を含んでいてもよく、上記反射光散乱性円偏光分離層はコレステリック液晶相を固定した層からなり、かつ、非反射光散乱性円偏光分離層は、コレステリック液晶相を固定した層または直線偏光分離層とλ／４位相差層とを含む積層体からなる。本発明の円偏光フィルターは円偏光度が高く、本発明の円偏光フィルターを利用して感度の高いセンサーシステムを提供することができる。

Abstract translation: 本发明提供一种圆偏振滤光器，用于选择性地透射特定波长的右圆偏振光或左圆偏振光的一种感测的圆偏振光，其中当任何一种感官的圆偏振光在 从表面入射的特定波长比从该表面入射的不同感的圆偏振光的漫反射率/规则反射率小。 圆偏光滤光器包括圆偏振分离层，圆偏振分离层包括反射光散射圆偏振分离层，并且还可以包括非反射光散射圆偏振分离层。 反射光散射圆偏振光分离层由固定有胆甾型液晶相的层形成，非反射光散射圆偏振光分离层由层叠体形成，层叠体包含胆甾醇型液晶相 是固定的或线偏振分离层和λ/ 4延迟层。 该圆偏振滤光器具有高度的圆偏振，并且可以通过使用该圆偏振滤光器来提供高灵敏度的传感器系统。

公开(公告)号：WO2015014709A1

公开(公告)日：2015-02-05

申请号：PCT/EP2014/065918

申请日：2014-07-24

Applicant: UNIVERSITAT AUTONOMA DE BARCELONA

Inventor： MOMPART PENINA, Jordi ,  TURPIN AVILES, Alejandro ,  KIRILOV KALKANDJIEV, Todor ,  PEINADO CAPDEVILA, Alba ,  LIZANA TUTUSAUS, Angel ,  CAMPOS COLOMA, Juan Ignacio Pedro

IPC: G01J4/04

CPC classification number: G01J4/04

Abstract: A polarimeter based on conical refraction and a method for determining the polarization state of an input electromagnetic radiation. The polarimeter comprises: - a division-of-amplitude device (BS) for amplitude dividing an input electromagnetic radiation (S in ) characterized by a polarization state into first (S in1 ) and second (S in2 ) input electromagnetic radiations, - first (A1) and second (A2) arms each including a refractive arrangement (C1, C2) configured for conically refracting said first (S in1 ) and second (S in2 ) input electromagnetic radiations so as to provide respective light spatial patterns corresponding to their polarization states; and - a light analysis arrangement configured for receiving and analysing said light spatial patterns and for determining the polarization state of the input electromagnetic radiation (S in ) according to both analysed spatial patterns. The method comprises using the light analysis arrangement of the polarimeter of the invention for the determination of the polarization state of the input electromagnetic radiation(S in ).

Abstract translation: 基于圆锥折射的偏振计和用于确定输入电磁辐射的偏振状态的方法。 所述偏振计包括： - 分频装置（BS），用于将由偏振状态表征的输入电磁辐射（Sin）振幅分为第一（Sin1）和第二（Sin2）输入电磁辐射， - 第一（A1）和 第二（A2）臂，每个臂包括被配置为锥形折射所述第一（Sin1）和第二（Sin2）输入电磁辐射的折射布置（C1，C2），以便提供对应于它们的偏振状态的各个光空间图案; 以及 - 光分析装置，被配置为接收和分析所述光空间图案并根据两个分析的空间图案确定输入电磁辐射（Sin）的偏振状态。 该方法包括使用本发明的偏振计的光分析装置来确定输入电磁辐射（Sin）的偏振状态。

公开(公告)号：WO2014170670A2

公开(公告)日：2014-10-23

申请号：PCT/GB2014/051187

申请日：2014-04-16

Applicant: MBDA UK LIMITED

Inventor： GREENWAY, Christopher ,  SIMMONS, Richard, Charles

IPC: G01J3/02

CPC classification number: H04N5/33 ,  G01J3/0208 ,  G01J3/0224 ,  G01J3/0235 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/2823 ,  G01J3/447 ,  G01J3/50 ,  G01J4/04 ,  G01J2003/2826 ,  G02B5/3058 ,  G02B27/288 ,  G06T5/50 ,  G06T7/11 ,  G06T2207/10036 ,  G06T2207/10048 ,  G06T2207/20224 ,  G06T2210/61

Abstract: An imaging apparatus and method are provided for improving discrimination between parts of a scene enabling enhancement of an object in the scene. A camera unit (12) is arranged to capture first and second images from the scene (8) in first and second distinct and spectrally spaced apart wavebands. An image processing unit (14) processes the images so captured and processes polarimetric information in the images to enable better discrimination between parts of the scene. An image of the scene, including a graphical display of the polarimetric information, may be displayed on a visual display unit (16) thus enhancing an object in the scene for viewing by a user. Correlation parameters indicating, possibly on a pixel-by-pixel basis, the correlation between the actual image intensity (30) at each angle of polarisation and a modelled expected image intensity may be used to enhance the visibility of an object.

Abstract translation: 提供了一种成像设备和方法，用于改善场景的各个部分之间的区分，从而能够增强场景中的对象。 摄像机单元（12）被布置为在第一和第二不同且光谱间隔开的波段中捕捉来自场景（8）的第一和第二图像。 图像处理单元（14）处理如此拍摄的图像并处理图像中的偏振信息，以便能够更好地区分场景的各个部分。 包括极化信息的图形显示的场景的图像可以被显示在视觉显示单元（16）上，从而增强场景中的对象以供用户观看。 可能在逐个像素的基础上指示每个偏振角处的实际图像强度（30）和模型化的期望图像强度之间的相关性的相关参数可以用于增强对象的可见性。

公开(公告)号：WO2014111487A1

公开(公告)日：2014-07-24

申请号：PCT/EP2014/050842

申请日：2014-01-16

Applicant: UNIVERSITEIT LEIDEN

Inventor： KELLER, Christoph Ulrich ,  SNIK, Frans

IPC: G01J1/04 ,  G01J3/14 ,  G01J4/00 ,  G01J3/02

CPC classification number: G01J3/0224 ,  G01J1/0425 ,  G01J1/4228 ,  G01J3/0218 ,  G01J3/14 ,  G01J4/00 ,  G01J4/04 ,  G02F1/0136

Abstract: A polarimetry apparatus comprising a plurality of flexible light conduits each having first and second ends, and a respective polarization modulator associated with each light conduit, wherein each light conduit is configured to receive incident light from a different predetermined region in space via the first end, and deliver said light to a detector unit via the second end, and wherein the polarization modulator is configured to modulate the polarization of the light to enable a partial or complete polarization state of the incident light to be determined by the detector unit for each light conduit.

Abstract translation: 一种包括多个具有第一和第二端的柔性光导管以及与每个光导管相关联的相应的偏振调制器的偏振仪，其中每个光导管经配置以经由第一端接收来自不同预定区域的入射光， 并且经由所述第二端将所述光传送到检测器单元，并且其中所述偏振调制器被配置为调制所述光的偏振，以使所述入射光的部分或完全偏振状态由所述检测器单元确定用于每个光导管 。

公开(公告)号：WO2014018213A1

公开(公告)日：2014-01-30

申请号：PCT/US2013/048179

申请日：2013-06-27

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： MUDGE, Jason Dominic

IPC: G01J4/00

CPC classification number: G06T5/003 ,  G01J4/04 ,  H04N5/21 ,  H04N5/2173 ,  H04N5/2356

Abstract: The subject technology relates to methods and systems for removing haze from an input image. The system includes a polanmeter configured to receive an input image comprising haze corresponding to light scatter. The polanmeter is further configured to produce plural Stokes values based on received input image. The system also includes a signal processor coupled to the polarimeter. The signal processor is configured to determine a peak angle and a valley angle for the input image based on the plural Stokes values, where the peak angle corresponds to an angle at which the. input image has the most amount of light scatter passing therethrough, and the valley angle corresponds to an angle at which the input image has the least amount of light scatter passing therethrough. The signal processor is further configured to perform removal of the haze from the input image based on the determined peak and valley angles.

Abstract translation: 主题技术涉及从输入图像中去除雾度的方法和系统。 该系统包括配置为接收包括对应于光散射的雾度的输入图像的倾斜计。 该偏移计进一步被配置为基于接收到的输入图像产生多个斯托克斯值。 该系统还包括耦合到该偏振计的信号处理器。 信号处理器被配置为基于多个斯托克斯值来确定输入图像的峰值角和谷角，其中峰值对应于角度。 输入图像具有通过其中的大量光散射，并且谷角对应于输入图像具有通过其中的最少量的光散射的角度。 信号处理器还被配置为基于确定的峰谷角度从输入图像中去除雾度。

公开(公告)号：WO2011028622A1

公开(公告)日：2011-03-10

申请号：PCT/US2010/046861

申请日：2010-08-26

Applicant: UNIVERSITY OF ALASKA ,  OLSON, John, V.

Inventor： OLSON, John, V.

IPC: H03M7/00

CPC classification number: G01J4/04 ,  G06K9/00496

Abstract: Embodiments described herein describe the construction of frequency domain estimates of generalized power density and the filters that can be constructed from those estimates. Using the concept of the Stokes vector representation of the spectral matrix in an M-dimensional vector space, a generalization of the process in which the spectral matrix may be represented by a set of trace-orthogonal matrices that are based upon a particular signal state can be produced. One aspect of the process is as follows: given a particular signal, represented as by a state vector in the space, a complete, orthonormal set of vectors can be produced that includes the signal of interest. Then, a generalized set of matrices is constructed, based upon the developed vectors, that are trace-orthogonal and which serve as a basis set for the expansion of the spectral matrix. The coefficients of this expansion form a generalized Stokes vector that represents the power in the spectral matrix associated with the various state vectors. Filters that serve to extract or suppress information about a particular state may then be constructed using the components of the generalized Stokes vectors. The effectiveness of an embodiment this filter is demonstrated using acoustic data from a microphone array.

Abstract translation: 本文所描述的实施例描述了广义功率密度的频域估计的构造和可以从这些估计构建的滤波器。 使用M维向量空间中的谱矩阵的斯托克斯矢量表示的概念，其中频谱矩阵可以由基于特定信号状态的一组跟踪正交矩阵表示的过程的泛化可以 生产。 该过程的一个方面如下：给定由空间中的状态向量表示的特定信号，可以产生包括感兴趣信号的完整的正交向量集合。 然后，基于所展开的向量构造一组广泛的矩阵，其是跟踪正交的，并且作为用于扩展频谱矩阵的基础集合。 该扩展的系数形成广义斯托克斯向量，其表示与各种状态向量相关联的频谱矩阵中的功率。 用于提取或抑制关于特定状态的信息的滤波器可以使用广义斯托克斯向量的分量来构建。 使用来自麦克风阵列的声学数据来演示该滤波器的实施例的有效性。