Moving Object Scanning Apparatus and Method

Roger Appleby (Inventor), Gillian Marshall (Inventor), Phillip Kent (Inventor), David Barrett (Inventor), Janet Hughes (Inventor), John Gillham (Inventor), Peter Coward (Inventor), Gordon Sinclair (Inventor), John Savage (Inventor), Piers Thomas (Inventor), Winchcombe Hawkesley (Inventor)

Research output: Patent


Apparatus for scanning a moving object includes a visible waveband sensor oriented to collect a series of images of the object as it passes through a field of view. An image processor uses the series of images to form a composite image. The image processor stores image pixel data for a current image and 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 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 be a speed sensor such as Doppler radar sensing object motion directly and providing image timing signals
Original languageEnglish
Patent numberUS 7675655 B2
Publication statusPublished - Mar 2009


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