发明授权
- 专利标题: Moving object scanning apparatus and method
- 专利标题(中): 移动物体扫描装置及方法
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申请号: US10547652申请日: 2004-02-27
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公开(公告)号: US07675655B2公开(公告)日: 2010-03-09
- 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
- 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
- 申请人地址: GB
- 专利权人: QinetiQ Limited
- 当前专利权人: QinetiQ Limited
- 当前专利权人地址: GB
- 代理机构: McDonnell Boehnen Hulbert & Berghoff LLP
- 优先权: GB0305304.8 20030307
- 国际申请: PCT/GB2004/000820 WO 20040227
- 国际公布: WO2004/079659 WO 20040916
- 主分类号: H04N1/04
- IPC分类号: H04N1/04
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.
公开/授权文献
- US20060146377A1 Scanning apparatus and method 公开/授权日:2006-07-06