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公开(公告)号：US07675655B2
公开(公告)日：2010-03-09
申请号：US10547652
申请日：2004-02-27
申请人： Gillian Fiona Marshall , Philip John Kent , Roger Appleby , David John Barrett , Janet Hughes , John Peter Gillham , Peter Russell Coward , Gordon Neil Sinclair , John Timothy Savage , Piers Thomas Winchcombe Hawkesley
发明人： Gillian Fiona Marshall , Philip John Kent , Roger Appleby , David John Barrett , Janet Hughes , John Peter Gillham , Peter Russell Coward , Gordon Neil Sinclair , John Timothy Savage , Piers Thomas Winchcombe Hawkesley
IPC分类号： H04N1/04
CPC分类号： G06T3/4038
摘要： Apparatus for scanning a moving object includes a visible waveband sensor 12 oriented to collect a series of images of the object as it passes through a field of view 16. An image processor 14 uses the series of images to form a composite image. The image processor 14 stores image pixel data for a current image and a predecessor image in the series. It uses information in the current image and its predecessor to analyse images and derive likelihood measures indicating probabilities that current image pixels correspond to parts of the object. The image processor 14 estimates motion between the current image and its predecessor from likelihood weighted pixels. It generates the composite image from frames positioned according to respective estimates of object image motion. Image motion may alternatively be detected by a speed sensor such as a Doppler radar 200 sensing object motion directly and providing image timing signals.
摘要翻译： 用于扫描移动物体的装置包括可视波段传感器12，其可被定向成在物体通过视场16时收集物体的一系列图像。图像处理器14使用该系列图像来形成合成图像。 图像处理器14存储当前图像的图像像素数据和前序图像。 它使用当前图像及其前身中的信息来分析图像并导出表示当前图像像素对应于对象部分的概率的似然度量。 图像处理器14从似然加权像素估计当前图像与其前身之间的运动。 它根据对象图像运动的相应估计定位的帧生成合成图像。 图像运动可以替代地由诸如多普勒雷达200的速度传感器直接检测物体运动并提供图像定时信号来检测。
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公开(公告)号：US20050168388A1
公开(公告)日：2005-08-04
申请号：US10513810
申请日：2003-05-06
申请人： Roger Appleby , Rupert Anderton , Peter Coward , Alan Lettington
发明人： Roger Appleby , Rupert Anderton , Peter Coward , Alan Lettington
CPC分类号： H01Q15/244 , G01S13/89
摘要： An apparatus for redirecting radiation including a polarization dependent reflector and an optical component able to transform the polarisation of radiation as it passes through the component. Radiation having a first polarisation component impinging upon the reflector from a source is reflected towards a scene area. Radiation not having this polarisation component passes through the reflector. The radiation having the first polarisation is then transmitted towards a scene via the optical component. As the radiation passes via the optical component, reflects back from the scene and passes again via the optical component, the polarisation is changed to state where it can now pass through the polarisation dependent reflector. The apparatus allows a scene to be illuminated as if the illuminator were positioned at the viewpoint of an imaging system, and so aids uniform illumination of the scene. The apparatus is particularly suited to mm-wave systems, wherein the reflector may comprise a parallel wire grid polarizer, and the optical component may comprise a quarter-wave plate.
摘要翻译： 一种用于重定向辐射的装置，包括偏振相关反射器和能够在辐射穿过部件时变换辐射的偏振的光学部件。 具有从源极入射到反射器上的第一偏振分量的辐射被反射到场景区域。 不具有该偏振分量的辐射通过反射器。 然后，具有第一偏振的辐射经由光学部件被发送到场景。 当辐射通过光学部件时，从场景反射回来并经由光学部件再次通过，偏振改变为现在可以通过偏振相关反射器的状态。 该装置允许场景被照亮，如同照明器位于成像系统的观点，因此有助于场景的均匀照明。 该装置特别适用于mm波系统，其中反射器可以包括平行线栅偏振器，并且光学部件可以包括四分之一波片。
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公开(公告)号：US07820919B2
公开(公告)日：2010-10-26
申请号：US10535684
申请日：2004-12-06
申请人： Jeffrey Powell , Roger Appleby , Mark T Moore
发明人： Jeffrey Powell , Roger Appleby , Mark T Moore
IPC分类号： H05K9/00
CPC分类号： H01L23/552 , H01L23/24 , H01L2924/1423 , H01L2924/1616 , H01L2924/16195 , H01L2924/3011
摘要： This invention relates to electronic circuit packages designed to hold high frequency circuits operating particularly, but not exclusively, in the microwave, millimeter wave, and sub-millimeter wave bands. The invention provides a package incorporating a cavity in a material for containment of the circuits, wherein the package further incorporates at least one conductive surface mounted on an inner surface extending into the cavity, the conductivity thereof being adapted to be at least partially absorbent to electromagnetic radiation. The conductive surface according to the present invention will tend to attenuate electromagnetic radiation present within the cavity, and so help to prevent undesired coupling from one point to another within the cavity. The conductivity of the conductive material is preferably arranged to match the impedance of the radiation mode estimated or computed to be present within the cavity.
摘要翻译： 本发明涉及设计用于保持特别但非排他地在微波，毫米波和亚毫米波段中工作的高频电路的电子电路封装。 本发明提供一种将包含在用于容纳电路的材料中的空腔的封装，其中所述封装还包括安装在延伸到所述腔中的内表面上的至少一个导电表面，其导电性适于至少部分地吸收到电磁 辐射。 根据本发明的导电表面将倾向于衰减腔内存在的电磁辐射，并且因此有助于防止在空腔内从一个点到另一个点的不期望的耦合。 优选地，导电材料的导电性被布置成使估计或计算出的存在于腔内的辐射模式的阻抗匹配。
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公开(公告)号：US07176827B2
公开(公告)日：2007-02-13
申请号：US10513810
申请日：2003-05-06
IPC分类号： G01S13/00
CPC分类号： H01Q15/244 , G01S13/89
摘要： An apparatus for redirecting radiation including a polarization dependent reflector and an optical component able to transform the polarisation of radiation as it passes through the component. Radiation having a first polarisation component impinging upon the reflector from a source is reflected towards a scene area. Radiation not having this polarisation component passes through the reflector. The radiation having the first polarisation is then transmitted towards a scene via the optical component. As the radiation passes via the optical component, reflects back from the scene and passes again via the optical component, the polarisation is changed to state where it can now pass through the polarisation dependent reflector. The apparatus allows a scene to be illuminated as if the illuminator were positioned at the viewpoint of an imaging system, and so aids uniform illumination of the scene. The apparatus is particularly suited to mm-wave systems, wherein the reflector may comprise a parallel wire grid polarizer, and the optical component may comprise a quarter-wave plate.
摘要翻译： 一种用于重定向辐射的装置，包括偏振相关反射器和能够在辐射穿过部件时变换辐射的偏振的光学部件。 具有从源极入射到反射器上的第一偏振分量的辐射被反射到场景区域。 不具有该偏振分量的辐射通过反射器。 然后，具有第一偏振的辐射经由光学部件被发送到场景。 当辐射通过光学部件时，从场景反射回来并经由光学部件再次通过，偏振改变为现在可以通过偏振相关反射器的状态。 该装置允许场景被照亮，如同照明器位于成像系统的观点，因此有助于场景的均匀照明。 该装置特别适用于mm波系统，其中反射器可以包括平行线栅偏振器，并且光学部件可以包括四分之一波片。
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公开(公告)号：US20060146377A1
公开(公告)日：2006-07-06
申请号：US10547652
申请日：2004-02-27
申请人： Gillian Marshall , Philip Kent , Roger Appleby , David Barrett , Janet Hughes , John Gillham , Peter Coward , Gordon Sinclair , John Savage , Piers Thomas Hawkesley
发明人： Gillian Marshall , Philip Kent , Roger Appleby , David Barrett , Janet Hughes , John Gillham , Peter Coward , Gordon Sinclair , John Savage , Piers Thomas Hawkesley
IPC分类号： H04N1/04
CPC分类号： G06T3/4038
摘要： Apparatus for scanning a moving object includes a visible waveband sensor 12 oriented to collect a series of images of the object as it passes through a field of view 16. An image processor 14 uses the series of images to form a composite image. The image processor 14 stores image pixel data for a current image and a predecessor image in the series. It uses information in the current image and its predecessor to analyse images and derive likelihood measures indicating probabilities that current image pixels correspond to parts of the object. The image processor 14 estimates motion between the current image and its predecessor from likelihood weighted pixels. It generates the composite image from frames positioned according to respective estimates of object image motion. Image motion may alternatively be detected by a speed sensor such as a Doppler radar 200 sensing object motion directly and providing image timing signals.
摘要翻译： 用于扫描运动物体的装置包括可视波段传感器12，其可被定向成在物体通过视场16时收集物体的一系列图像。图像处理器14使用该系列图像来形成合成图像。 图像处理器14存储当前图像的图像像素数据和前序图像。 它使用当前图像及其前身中的信息来分析图像并导出表示当前图像像素对应于对象部分的概率的似然度量。 图像处理器14从似然加权像素估计当前图像与其前身之间的运动。 它根据对象图像运动的相应估计定位的帧生成合成图像。 图像运动可以替代地由诸如多普勒雷达200的速度传感器直接检测物体运动并提供图像定时信号来检测。
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公开(公告)号：US20190383934A1
公开(公告)日：2019-12-19
申请号：US16464446
申请日：2017-11-28
摘要： A method for capturing images of a person for a security screening is provided. A spatial position of the person is detected using a support sensor. Information indicative of the detected spatial position of the person is then received and used to steer a field of view of at least a first set of imaging heads towards the detected spatial position of the person. The at least a first set of imaging heads includes at least one passive imaging head and at least one active imaging head, wherein the passive imaging head captures separate images corresponding to at least two frequency bands at a same time. Images of the person are then captured with the at least a first set of imaging heads.
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公开(公告)号：US20060065971A1
公开(公告)日：2006-03-30
申请号：US10535684
申请日：2004-12-06
申请人： Jeffrey Powell , Roger Appleby , Mark Moore
发明人： Jeffrey Powell , Roger Appleby , Mark Moore
CPC分类号： H01L23/552 , H01L23/24 , H01L2924/1423 , H01L2924/1616 , H01L2924/16195 , H01L2924/3011
摘要： This invention relates to electronic circuit packages designed to hold high frequency circuits operating particularly, but not exclusively, in the microwave, millimetre wave, and sub-millimetre wave bands. The invention provides a package incorporating a cavity in a material for containment of the circuits, wherein the package further incorporates at least one conductive surface mounted on an inner surface extending into the cavity, the conductivity thereof being adapted to be at least partially absorbent to electromagnetic radiation. The conductive surface according to the present invention will tend to attenuate electromagnetic radiation present within the cavity, and so help to prevent undesired coupling from one point to another within the cavity. The conductivity of the conductive material is preferably arranged to match the impedance of the radiation mode estimated or computed to be present within the cavity.
摘要翻译： 本发明涉及设计用于保持特别但非排他地在微波，毫米波和亚毫米波段中工作的高频电路的电子电路封装。 本发明提供一种将包含在用于容纳电路的材料中的空腔的封装，其中所述封装还包括安装在延伸到所述腔中的内表面上的至少一个导电表面，其导电性适于至少部分地吸收到电磁 辐射。 根据本发明的导电表面将倾向于衰减腔内存在的电磁辐射，并且因此有助于防止在空腔内从一个点到另一个点的不期望的耦合。 优选地，导电材料的导电性被布置成使估计或计算出的存在于腔内的辐射模式的阻抗匹配。
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公开(公告)号：US06894636B2
公开(公告)日：2005-05-17
申请号：US10032694
申请日：2002-01-02
申请人： Rupert N Anderton , Peter R Coward , Roger Appleby
发明人： Rupert N Anderton , Peter R Coward , Roger Appleby
CPC分类号： G01V8/005
摘要： A system for imaging the contents of containers includes an imager arranged to receive millimetre wave radiation from a reception volume through a receive antenna wherein, in use, the container is moving relative to the receive antenna, the reception volume is positioned such that the relative movement causes the reception volume to move through the container; data from the antenna is recorded as the reception volume moves through the container, and an image of the contents of the container is built up from the recorded data. The system is particularly suitable for imaging containers mounted on vehicles. The imager may advantageously be mounted in a portal, allowing convenient and controllable relative positioning of the container, and allowing the relative speed to be controlled or measured easily. The invention allows 3D or pseudo 3D images to be produced to aid identification of container contents. The invention also includes a method for imaging.
摘要翻译： 用于对容器的内容进行成像的系统包括成像器，其被布置成通过接收天线从接收体积接收毫米波辐射，其中在使用中容器相对于接收天线移动，接收体积被定位成使得相对运动 使接收量移动通过容器; 当接收体积移动通过容器时，来自天线的数据被记录，并且从记录的数据构建容器的内容的图像。 该系统特别适用于安装在车辆上的成像容器。 成像器可以有利地安装在入口中，允许容器的方便和可控的相对定位，并且允许容易地控制或测量相对速度。 本发明允许产生3D或伪3D图像以帮助识别容器内容物。 本发明还包括一种成像方法。
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