Method for creating a mosaic image using masks
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United States of America Patent
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Jan 5, 2016
Grant Date -
Oct 25, 2012
app pub date -
Oct 22, 2009
filing date -
Oct 22, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Photographic images recorded with mobile mapping vehicles (20) in real life situations usually contain cars or other moving objects (34) that cover visual information on the road surface (24). According to the techniques of this invention, moving objects (34) are detected by grayscale differencing in overlapping pixels or sections of two or more orthorectified image tiles. Based on moving object identification, masks are generated for each orthorectified tile. The masks are then compared and priorities established based on grayscale values associated with the masks. Mosaics of a large surface of interest such as the Earth can be assembled from a plurality of overlapping photographic images with moving objects (34) largely removed from the resulting mosaic.
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