公开(公告)号：EP3341692A1

公开(公告)日：2018-07-04

申请号：EP16732432.6

申请日：2016-06-12

申请人： Raytheon Company

发明人： FEST, Eric C. ,  LEIGH, Jon E.

IPC分类号： G01J4/04 ,  G01N21/21 ,  G02B5/30

CPC分类号： G02B27/286 ,  G01J4/04 ,  G02B5/201 ,  G02B5/3025 ,  G06T7/344 ,  G06T2207/10048

摘要： Polarized pixelated filter sub-array is reconfigured to reduce sensitivity to misalignment. The condition number increases more slowly than the standard polarized pixelated filter sub-array as the misalignment increases. In different embodiments, the filter sub-array is configured such that the condition number has a finite bound at ½ pixel misalignment. The angular values of the polarizer filter array are determined to minimize the sensitivity of the condition number of the data reduction matrix to misalignment. This can be achieved by selecting angular values that minimize the expected value of the condition number E(CN) over the range of misalignment.

公开(公告)号：EP3228977A4

公开(公告)日：2018-07-04

申请号：EP15865560

申请日：2015-10-28

申请人： SONY CORP

发明人： KONDO YUHI ,  HIRASAWA YASUTAKA ,  HAYASAKA KENGO

IPC分类号： G01B11/00 ,  G01B11/24 ,  G01C3/06 ,  H04N5/225 ,  H04N5/232 ,  H04N5/247 ,  H04N13/214 ,  H04N13/229 ,  H04N13/271

CPC分类号： H04N13/214 ,  G01B11/00 ,  G01B11/24 ,  G01C3/085 ,  G01J4/04 ,  G06T7/55 ,  H04N5/2254 ,  H04N5/2258 ,  H04N5/247 ,  H04N13/218 ,  H04N13/229 ,  H04N13/232 ,  H04N13/243 ,  H04N13/271 ,  H04N2013/0081

摘要： A depth map generation unit 22 generates a depth map that generates the depth map from images obtained by picking up a subject at a plurality of viewpoint positions by an image pickup unit 21. On the basis of the depth map generated by the depth map generation unit 22, an alignment unit 23 aligns polarized images obtained by the image pickup unit 21 picking up the subject at the plurality of viewpoint positions through polarizing filters in different polarization directions at the different viewpoint positions. A polarization characteristic acquisition unit 24 acquires a polarization characteristic of the subject from a desired viewpoint position by using the polarized images aligned by the alignment unit 23 to obtain the high-precision polarization characteristic with little degradation in temporal resolution and spatial resolution. It becomes possible to acquire the polarization characteristic of the subject at the desired viewpoint position.

公开(公告)号：EP1902334B2

公开(公告)日：2018-04-04

申请号：EP06763828.8

申请日：2006-06-22

申请人： Grau, Günter

发明人： Grau, Günter

IPC分类号： G02B5/30 ,  G01J1/42 ,  G01J4/04 ,  H01L31/0232 ,  H01L27/146 ,  H04N13/04

CPC分类号： G02B5/3025 ,  G01J4/04 ,  H01L27/14625 ,  H04N13/341

公开(公告)号：EP2480869A4

公开(公告)日：2017-03-15

申请号：EP10818498

申请日：2010-09-21

申请人： VOROTEC LTD

发明人： VOROVITCHIK SHLOMO

IPC分类号： G01J4/00 ,  G01C17/34 ,  G01C21/02 ,  G01J4/04

CPC分类号： G01J4/04 ,  G01C17/34 ,  G01C21/02 ,  G01J2004/005

摘要： An apparatus and system for use in determining location of a celestial body are presented. The apparatus comprises: a polarizer comprising an array of polarized light filter cells and a light sensor array. The array of polarized light filter cells comprises at least a first polarization direction and a second polarization direction different from said first polarization direction. And the polarizer thereby produces polarized light of at least first and second different polarizations. The light sensor array is configured to receive the polarized light from the polarizer and produce data indicative of a pattern of at least one of light polarization intensity and direction. The pattern is indicative of at least one of azimuth and elevation of the celestial body to be located.

摘要翻译： 提出了一种用于确定天体位置的装置和系统。 该装置包括：偏振器，包括偏振光滤光器单元阵列和光传感器阵列。 偏振光滤波器单元的阵列至少包括与所述第一偏振方向不同的第一偏振方向和第二偏振方向。 并且偏振器由此产生至少第一和第二不同偏振的偏振光。 光传感器阵列被配置为接收来自偏振器的偏振光，并且产生指示光偏振强度和方向中的至少一个的图案的数据。 该图案表示要定位的天体的方位角和仰角中的至少一个。

公开(公告)号：EP3076160A1

公开(公告)日：2016-10-05

申请号：EP15162031.7

申请日：2015-03-31

申请人： Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

发明人： VAN BRUG, Hedser ,  VISSER, Huibert

IPC分类号： G01N21/21 ,  G01N21/47 ,  G01N21/17 ,  G01J4/00

CPC分类号： G01N21/21 ,  G01J3/0208 ,  G01J3/0224 ,  G01J4/04 ,  G01N21/538 ,  G01N2021/1793 ,  G01N2021/4704 ,  G01N2021/4711 ,  G01N2021/4792

摘要： The invention pertains to an aerosol detector system for spatially resolved detection of an aerosol distribution in an area, comprising: a wide field polarization preserving telescope having telecentric imaging optics for imaging the earth surface onto a detector; said detector receiving phase stepped images imaged by said telescope; and a controller coupled to the detector, arranged to provide a resulting image as a function of corresponding pixel values of the multiple images to produce an image at a spatially resolved polarization state corresponding to said aerosol substance; wherein the telescope comprises a first telecentric imaging lens group and a wavelength filter positioned in a field image of the first telescope telecentric beam to define a spectral range of interest; the telescope further comprising: a converging lens group converging the beam to a pupil stop; relay optics including a second telecentric imaging lens group arranged to generate a telecentric beam; and splitter optics, comprising a polarization splitter for the selected wavelength range to split the telecentric beam into polarized beams; a further splitter; and a retarder to create multiple phase stepped images at different polarizations, the detector comprising multiple image sensors positioned in imaging planes after the splitter optics, and said polarization splitter, further splitter and retarder positioned in the telecentric beam of the second telecentric imaging lens group.

摘要翻译： 本发明涉及用于空间分辨检测区域中的气溶胶分布的气溶胶检测器系统，包括：具有用于将地球表面成像到检测器上的远心成像光学器件的宽场偏振保留望远镜; 所述检测器接收由所述望远镜成像的阶段式图像; 以及耦合到所述检测器的控制器，被布置为提供作为所述多个图像的对应像素值的函数的结果图像，以产生对应于所述气溶胶物质的空间分辨的极化状态的图像; 其中望远镜包括位于第一望远镜远心光束的场图像中的第一远心成像透镜组和波长滤光器，以限定感兴趣的光谱范围; 所述望远镜还包括：会聚透镜组，将所述光束会聚到光瞳停止部; 中继光学器件，包括布置成产生远心光束的第二远心成像透镜组; 和分离器光学器件，包括用于所选波长范围的偏振分离器，以将远心光束分裂成偏振光束; 另一个分路器 以及延迟器，以在不同偏振下产生多个相位阶梯图像，所述检测器包括位于分离器光学器件之后的成像平面中的多个图像传感器，并且所述偏振分离器，进一步的分离器和延迟器定位在第二远心成像透镜组的远心光束中。

公开(公告)号：EP3047646A1

公开(公告)日：2016-07-27

申请号：EP14755048.7

申请日：2014-08-12

申请人： SELEX ES LTD

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

IPC分类号： H04N5/33 ,  G01J4/04

CPC分类号： 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

摘要： 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. An image processor allows for the resolution of the subsequent image to be improved.

摘要翻译： 描述了用于偏振，多光谱成像的相机。 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。 相机使得可以使用偏振分光镜和反射镜同时记录多个光谱图像，以根据偏光度和光谱带划分图像。 这些多个偏振图像同时记录在单个焦平面阵列（FPA）上。 图像处理器允许改进后续图像的分辨率。

公开(公告)号：EP3026408A1

公开(公告)日：2016-06-01

申请号：EP15196379.0

申请日：2015-11-25

申请人： HAMAMATSU PHOTONICS K.K.

发明人： KAWADA, Yoichi ,  YASUDA, Takashi ,  TAKAHASHI, Hironori

IPC分类号： G01J3/433 ,  G01N21/3581

CPC分类号： G01J1/44 ,  G01J1/0429 ,  G01J1/4228 ,  G01J3/0224 ,  G01J3/0262 ,  G01J3/42 ,  G01J3/433 ,  G01J3/4338 ,  G01J4/04 ,  G01J2001/4242 ,  G01N21/3581 ,  G01R15/241 ,  G01R29/0871

摘要： In this electric field vector detection method, an electro-optic crystal (3), where a (111) surface (3a)of an optical isotropic medium is cut out, is used as a terahertz wave detection element (3). The method includes: causing polarization of probe light (La) of ultrashort pulsed light to be circular polarization (2); allowing the probe light (La) having circular polarization to enter the terahertz wave detection element (3) and probing the terahertz wave (T); modulating the probe light, having probed the terahertz wave, by a rotating analyzer (9) and detecting the modulated probe light by a photodetector (4, 4A); performing lock-in detection of a detection signal from the photodetector by a lock-in detector using a frequency based on a rotational frequency of the rotating analyzer (9) as a reference signal; and detecting an electric field vector of the terahertz wave (T) based on a detection signal from the lock-in detector.

摘要翻译： 在该电场矢量检测方法中，使用光学各向同性介质的（111）面（3a）的电光晶体（3）作为太赫兹波检测元件（3）。 该方法包括：使超短脉冲光的探测光（La）的极化为圆极化（2）; 允许具有圆极化的探测光（La）进入太赫兹波检测元件（3）并探测太赫兹波（T）; 通过旋转分析器（9）调制探测太赫兹波的探测光并通过光电检测器（4A，4A）检测调制的探测光; 通过锁定检测器使用基于旋转分析仪（9）的旋转频率的频率作为参考信号来执行来自光电检测器的检测信号的锁定检测; 以及基于来自锁定检测器的检测信号来检测太赫兹波（T）的电场矢量。

公开(公告)号：EP2989432A2

公开(公告)日：2016-03-02

申请号：EP14717858.6

申请日：2014-04-16

申请人： MBDA UK Limited

发明人： GREENWAY, Christopher ,  SIMMONS, Richard, Charles

IPC分类号： G01J3/02 ,  G01J4/04 ,  G01J3/28 ,  G01J3/447 ,  G01J3/50 ,  G02B27/28 ,  H01L27/146 ,  H04N5/33 ,  G06T5/00

CPC分类号： 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

摘要： 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 is arranged to capture first and second images from the scene in first and second distinct and spectrally spaced apart wavebands. An image processing unit 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 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 at each angle of polarization and a modelled expected image intensity may be used to enhance the visibility of an object.

摘要翻译： 提供了一种成像装置和方法，用于改善场景中能够增强场景中的对象的部分之间的区分。 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）和模型化的预期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：EP2946181A1

公开(公告)日：2015-11-25

申请号：EP14701017.7

申请日：2014-01-16

申请人： Universiteit Leiden

发明人： KELLER, Christoph Ulrich ,  SNIK, Frans

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

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

摘要： 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.

摘要翻译： 一种包括多个具有第一和第二端的柔性光导管的偏振仪，以及与每个光导管相关联的相应的偏振调制器，其中每个光导管经配置以经由第一端接收来自空间中的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：EP2891003A1

公开(公告)日：2015-07-08

申请号：EP13734260.6

申请日：2013-06-21

申请人： Raytheon Company

发明人： KING, Page, E. ,  SCHAUB, Michael, P. ,  FEST, Eric, C.

IPC分类号： G02B5/20 ,  G01J4/00 ,  G02B5/30 ,  G02B27/28 ,  G02B26/00 ,  G02B26/02

CPC分类号： G01J4/04 ,  G01J3/0232 ,  G01J3/0235 ,  G01J3/36 ,  G01J3/513 ,  G01S3/78 ,  G01S3/7803 ,  G01S3/781 ,  G01S5/16 ,  G02B5/201 ,  G02B5/3025 ,  G02B26/007 ,  G02B26/023 ,  G02B27/285 ,  G02B27/286 ,  H04N5/2254 ,  H04N5/332 ,  H04N17/002

摘要： An optical imaging system and method including a movable pixelated filter array, a shutter mechanism to which the pixelated filter array is attached, and a controller configured to implement a data reduction algorithm. The shutter mechanism is configured to move the pixelated filter array into and out of the optical path, and the data reduction algorithm allows the controller to account for axial and/or lateral misalignment of the filter array relative to the imaging detector array or its conjugate. In certain examples, the controller is further configured to use the data reduction algorithms also to perform wavefront sensing, for example to estimate wavefront error.