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1. 发明申请

WO2010063991A1 OPTICALLY DIVERSE CODED APERTURE IMAGING 审中-公开
标题翻译：光学分光光栅成像
公开(公告)号：WO2010063991A1
公开(公告)日：2010-06-10
申请号：PCT/GB2009/002780
申请日：2009-11-27
申请人： QINETIQ LIMITED , RIDLEY, Kevin, Dennis , DE VILLIERS, Geoffrey, Derek , SINGER, Christopher, Williams , STRENS, Malcolm, John, Alexander
发明人： RIDLEY, Kevin, Dennis , DE VILLIERS, Geoffrey, Derek , SINGER, Christopher, Williams , STRENS, Malcolm, John, Alexander
IPC分类号： G02B27/00 , A61B6/02 , G01T1/29 , G21K1/02
CPC分类号： G02B27/00 , G01J3/2846 , G01J4/04 , G02B2207/129 , G06K9/209 , H04N5/335 , H04N9/045 , H04N9/07
摘要： Optically diverse coded aperture imaging (CAI) comprises imaging a scene which is multi-spectrally diverse or polarimetrically diverse. A CAI system (10) allows light rays (12) from a scene to pass to a detector array (14) through a coded aperture mask (16) within an optical stop (18). The mask 16 has multiple apertures 16a, and produces overlapping coded images of the scene on the detector array (14). Detector array pixels receive and sum intensity contributions from each coded image. The detector array (14) provides output data for processing to reconstruct an image. The mask (16) provides for multi- spectral information to become encoded in the data. A linear integral equation incorporating explicit wavelength dependence relates the imaged scene to the data. This equation is solved by Landweber iteration to derive a multi-spectral image. An image with multiple polarisation states (polarimetric diversity) may be derived similarly with a linear integral equation incorporating explicit polarisation dependence.
摘要翻译：光学多样化编码孔径成像（CAI）包括对多光谱多样或多极化多样的场景进行成像。 CAI系统（10）允许来自场景的光线（12）通过光学停止（18）内的编码孔径掩模（16）传递到检测器阵列（14）。掩模16具有多个孔16a，并且在检测器阵列（14）上产生场景的重叠编码图像。检测器阵列像素从每个编码图像接收和求和强度贡献。检测器阵列（14）提供用于处理以重构图像的输出数据。掩模（16）提供多光谱信息以在数据中被编码。包含显式波长依赖性的线性积分方程将成像的场景与数据相关联。该方程通过Landweber迭代求解得到多光谱图像。具有多极化状态（偏振分集）的图像可以与包含明确的偏振依赖性的线性积分方程类似地导出。

2. 发明申请

WO2010015805A1 PROCESSING FOR CODED APERTURE IMAGING 审中-公开
标题翻译：编码孔径成像的处理
公开(公告)号：WO2010015805A1
公开(公告)日：2010-02-11
申请号：PCT/GB2009/001870
申请日：2009-07-30
申请人： QINETIQ LIMITED , DE VILLIERS, Geoffrey, Derek , RIDLEY, Kevin, Dennis , SLINGER, Christopher, William , STRENS, Malcolm, John, Alexander
发明人： DE VILLIERS, Geoffrey, Derek , RIDLEY, Kevin, Dennis , SLINGER, Christopher, William , STRENS, Malcolm, John, Alexander
IPC分类号： G06T3/40 , G06T5/50 , G01T1/29
CPC分类号： G06T3/4053 , G06T5/50 , G06T2200/21 , G06T2207/10052
摘要： A method of reconstructing an image of a scene (4) from data output by a detector (8) in a coded aperture imaging system (2) comprises taking multiple frames of data using a different coded aperture array 6 for each frame. For each frame of data a decoding pattern is employed which is point source diffraction pattern corresponding to the coded aperture array used to acquire that frame. The decoding patterns are combined in a Gram matrix. A two-dimensional to one-dimensional mapping is applied to the frames of data. A solution to the data is constructed which is related to the scene (4) by an integral operator. The integral operator has an averaging kernel with a main lobe width which is smaller than the detector pixel size. Processing of the data yields an image which has sub-pixel resolution, i.e. resolution greater than the native resolution of the detector (8).
摘要翻译：根据编码孔径成像系统（2）中由检测器（8）输出的数据，重建场景（4）的图像的方法包括使用针对每个帧的不同编码孔径阵列6来获取多帧数据。对于每个数据帧，采用与用于获取该帧的编码孔径阵列相对应的点源衍射图案的解码图案。解码图案以Gram矩阵组合。将二维至一维映射应用于数据帧。通过积分算子构建与场景（4）相关的数据解。积分算子具有平均内核，其主瓣宽度小于检测器像素大小。数据的处理产生具有子像素分辨率的图像，即分辨率大于检测器（8）的原始分辨率。

3. 发明申请

WO2008012557A2 PROCESSING METHOD FOR CODED APERTURE SENSOR 审中-公开
标题翻译：编码孔径传感器的处理方法
公开(公告)号：WO2008012557A2
公开(公告)日：2008-01-31
申请号：PCT/GB2007/002867
申请日：2007-07-27
申请人： QINETIQ LIMITED , STRENS, Malcolm, John, Alexander
发明人： STRENS, Malcolm, John, Alexander
CPC分类号： G01T1/295
摘要： This invention relates to a method of processing for a coded aperture imaging apparatus which is useful for target identification and tracking. The method uses a statistical scene model and, preferably using several frames of data, determines a likelihood of the position and/or velocity of one or more targets assumed to be in the scene. The method preferably applies a recursive Bayesian filter or Bayesian batch filter to determine a probability distribution of likely state parameters. The method of the present invention acts upon the acquired data directly without requiring any processing to form an image.
摘要翻译：编码孔径成像装置的处理方法技术领域本发明涉及用于对目标进行识别和跟踪的编码孔径成像装置的处理方法。该方法使用统计场景模型并且优选地使用若干帧数据来确定被假定为处于场景中的一个或多个目标的位置和/或速度的可能性。该方法优选应用递归贝叶斯过滤器或贝叶斯批处理过滤器来确定可能的状态参数的概率分布。本发明的方法直接作用于所获取的数据，而不需要任何处理来形成图像。

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