Validation and correction of map data using oblique images

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United States of America Patent

PATENT NO 8311287
APP PUB NO 20100074538A1
SERIAL NO

12237817

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Technologies are described herein for validating and correcting map data using oblique images or aerial photographs taken at oblique angles to the earth's surface. Pixels within oblique images can be analyzed to detect, validate, and correct other sources of data used in generating maps such as vector data, elevation maps, projection parameters, and three-dimensional model data. Visibility and occlusion information in oblique views may be analyzed to reduce errors in either occluding or occluded entities. Occlusion of road segments due to foliage, z-ordering of freeways, tunnels, bridges, buildings, and other geospatial entities may be determined, validated, and corrected. A learning algorithm can be trained with image-based descriptors that encode visible data consistencies. After training, the algorithm can classify errors and inconsistencies using combinations of different descriptors such as color, texture, image-gradients, and filter responses.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MICROSOFT TECHNOLOGY LICENSING, LLCREDMOND, WA30026

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kimchi, Gur Bellevue, US 102 2495
Mishra, Pragyana K Kirkland, US 28 96
Ofek, Eyal Redmond, US 141 1937

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Pictometry International Corp. (1)
2008/0123,994 Mosaic Oblique Images and Methods of Making and Using Same 37 2007
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
6259452 Image drawing system and method with real-time occlusion culling 33 1998
 
TOMTOM NAVIGATION B.V. (1)
* 2011/0264,362 GENERATING A DISPLAY IMAGE 7 2008
 
MICROSOFT TECHNOLOGY LICENSING, LLC (3)
7295203 Determining regions that are occluded from an observation point 1 2005
2007/0237,420 OBLIQUE IMAGE STITCHING 77 2006
7286708 Method for encoding and serving geospatial or other vector data as images 4 2006
 
HARRIS CORPORATION (1)
* 7630797 Accuracy enhancing system for geospatial collection value of an image sensor aboard an airborne platform and associated methods 7 2006
 
The United States of America as represented by the Secretary of the Navy (1)
6597818 Method and apparatus for performing geo-spatial registration of imagery 247 2001
 
FACEBOOK, INC. (1)
7397972 Image transform method for obtaining expanded image data, image processing apparatus and image display device therefor 4 2001
* Cited By Examiner

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