Navigation device and method
First Claim
1. A method of operating a portable navigation device or navigation system having a digital camera arranged to capture at least one digital image, the method comprising the steps of:
- capturing at least one digital image;
determining, via pattern recognition, whether data of said captured image comprises one or more recognizable pre-defined features,storing into memory information comprising identification of at least one of said features together with geospatial location data identifying an approximate position of at least one of;
a location of the device at an instant when said digital image was captured or within a predetermined time threshold of that instant,a calculated predicated location of said device or system at an approximate instant said digital image was captured, said prediction being based on an earlier stored device position information, anda calculated approximation of a location of said feature identified in the captured digital image.
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Accused Products
Abstract
A system and method of operating a portable navigation device or navigation system having a digital camera associated therewith and controlled is described. The method includes capturing digital image data as well as performing a pattern recognition technique on the captured digital image data to determine whether the image includes one or more recognizable pre-defined features. In addition, some information is stored into memory, including an indication of a feature identified for which the pattern recognition technique was successful together with geospatial location data identifying the approximate position of at least one of: the location of the device or system when the digital image was captured, a calculated predicted location of the device and a calculated approximation of the location of the feature identified in the captured digital image.
71 Citations
12 Claims
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1. A method of operating a portable navigation device or navigation system having a digital camera arranged to capture at least one digital image, the method comprising the steps of:
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capturing at least one digital image; determining, via pattern recognition, whether data of said captured image comprises one or more recognizable pre-defined features, storing into memory information comprising identification of at least one of said features together with geospatial location data identifying an approximate position of at least one of; a location of the device at an instant when said digital image was captured or within a predetermined time threshold of that instant, a calculated predicated location of said device or system at an approximate instant said digital image was captured, said prediction being based on an earlier stored device position information, and a calculated approximation of a location of said feature identified in the captured digital image. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. (canceled)
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9. (canceled)
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10. A map data update system comprising:
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a portable navigation device or navigation system, a data validation server, wherein said device or system is arranged to upload recognized object and corresponding position data to said data validation server, wherein said server comprises means for conducting statistical processing of said data to determine a likely veracity thereof, wherein said data validation-server comprises means for subsequently creating one or more map patch files comprising at least recognized object data and corresponding location data for particular objects identified in the received data for which a likely existence of said recognized feature at a particular location is present, wherein said server comprises means for executing statistical processing to determine a presence of said likely existence, and wherein said device or system and said data validation server are arranged to establish a communication whereby said one or map patch files are returned to the device or system. - View Dependent Claims (11, 12)
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Specification