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公开(公告)号：US20110025841A1
公开(公告)日：2011-02-03
申请号：US12511362
申请日：2009-07-29
申请人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , Frezghi H. Ghebretati , James S. Goddard, JR. , Thomas P. Karnowski , Klaus-peter Ziock
发明人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , Frezghi H. Ghebretati , James S. Goddard, JR. , Thomas P. Karnowski , Klaus-peter Ziock
CPC分类号： G06T7/62 , G06T7/579 , G06T2207/10016 , G06T2207/30236
摘要： Multiple homography transformations corresponding to different heights are generated in the field of view. A group of salient points within a common estimated height range is identified in a time series of video images of a moving object. Inter-salient point distances are measured for the group of salient points under the multiple homography transformations corresponding to the different heights. Variations in the inter-salient point distances under the multiple homography transformations are compared. The height of the group of salient points is estimated to be the height corresponding to the homography transformation that minimizes the variations.
摘要翻译： 在视场中产生对应于不同高度的多重单变形变换。 在运动物体的视频图像的时间序列中识别公共估计高度范围内的一组显着点。 在对应于不同高度的多重单变形变换下，对于显着点组，测量突出点距离。 比较了多重单变形变换下的突出点距离的变化。 估计突出点组的高度是对应于使变化最小化的单变形变换的高度。
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公开(公告)号：US20110024611A1
公开(公告)日：2011-02-03
申请号：US12511385
申请日：2009-07-29
申请人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , James S. Goddard, JR. , Thomas P. Karnowski , Klaus-peter Ziock
发明人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , James S. Goddard, JR. , Thomas P. Karnowski , Klaus-peter Ziock
CPC分类号： H01L27/14601 , G01V5/0075
摘要： The relationship between the high energy radiation imager pixel (HERIP) coordinate and real-world x-coordinate is determined by a least square fit between the HERIP x-coordinate and the measured real-world x-coordinates of calibration markers that emit high energy radiation imager and reflect visible light. Upon calibration, a high energy radiation imager pixel position may be determined based on a real-world coordinate of a moving vehicle. Further, a scale parameter for said high energy radiation imager may be determined based on the real-world coordinate. The scale parameter depends on the y-coordinate of the moving vehicle as provided by a visible light camera. The high energy radiation imager may be employed to detect radiation from moving vehicles in multiple lanes, which correspondingly have different distances to the high energy radiation imager.
摘要翻译： 高能量辐射成像器像素（HERIP）坐标和真实x坐标之间的关系由HERIP x坐标与发射高能量辐射的校准标记的测量的真实x坐标之间的最小二乘拟合确定 成像器并反射可见光。 在校准时，可以基于移动车辆的现实世界坐标来确定高能量辐射成像器像素位置。 此外，可以基于真实世界坐标来确定用于所述高能辐射成像器的比例参数。 比例参数取决于可见光摄像机提供的移动车辆的y坐标。 高能量辐射成像器可用于检测多个通道中的移动车辆的辐射，其相应地具有与高能辐射成像器不同的距离。
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公开(公告)号：US07973276B2
公开(公告)日：2011-07-05
申请号：US12511385
申请日：2009-07-29
申请人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , James S. Goddard, Jr. , Thomas P. Karnowski , Klaus-peter Ziock
发明人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , James S. Goddard, Jr. , Thomas P. Karnowski , Klaus-peter Ziock
IPC分类号： G01D18/00
CPC分类号： H01L27/14601 , G01V5/0075
摘要： The relationship between the high energy radiation imager pixel (HERIP) coordinate and real-world x-coordinate is determined by a least square fit between the HERIP x-coordinate and the measured real-world x-coordinates of calibration markers that emit high energy radiation imager and reflect visible light. Upon calibration, a high energy radiation imager pixel position may be determined based on a real-world coordinate of a moving vehicle. Further, a scale parameter for said high energy radiation imager may be determined based on the real-world coordinate. The scale parameter depends on the y-coordinate of the moving vehicle as provided by a visible light camera. The high energy radiation imager may be employed to detect radiation from moving vehicles in multiple lanes, which correspondingly have different distances to the high energy radiation imager.
摘要翻译： 高能量辐射成像器像素（HERIP）坐标和真实x坐标之间的关系由HERIP x坐标和发射高能量辐射的校准标记的测量真实世界x坐标之间的最小二乘拟合确定 成像器并反射可见光。 在校准时，可以基于移动车辆的现实世界坐标来确定高能量辐射成像器像素位置。 此外，可以基于真实世界坐标来确定用于所述高能辐射成像器的比例参数。 比例参数取决于可见光摄像机提供的移动车辆的y坐标。 高能量辐射成像器可用于检测多个通道中的移动车辆的辐射，其相应地具有与高能辐射成像器不同的距离。
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公开(公告)号：US08487993B2
公开(公告)日：2013-07-16
申请号：US12511362
申请日：2009-07-29
申请人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , Frezghi H. Ghebretati, Jr. , James S. Goddard , Thomas P. Karnowski , Klaus-peter Ziock
发明人： Mark F. Cunningham , Lorenzo Fabris , Timothy F. Gee , Frezghi H. Ghebretati, Jr. , James S. Goddard , Thomas P. Karnowski , Klaus-peter Ziock
IPC分类号： H04N7/18
CPC分类号： G06T7/62 , G06T7/579 , G06T2207/10016 , G06T2207/30236
摘要： Multiple homography transformations corresponding to different heights are generated in the field of view. A group of salient points within a common estimated height range is identified in a time series of video images of a moving object. Inter-salient point distances are measured for the group of salient points under the multiple homography transformations corresponding to the different heights. Variations in the inter-salient point distances under the multiple homography transformations are compared. The height of the group of salient points is estimated to be the height corresponding to the homography transformation that minimizes the variations.
摘要翻译： 在视场中产生对应于不同高度的多重单变形变换。 在运动物体的视频图像的时间序列中识别公共估计高度范围内的一组显着点。 在对应于不同高度的多重单变形变换下，对于显着点组，测量突出点距离。 比较了多重单变形变换下的突出点距离的变化。 估计突出点组的高度是对应于使变化最小化的单变形变换的高度。
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