Validation and correction of map data using oblique images

A computer storage medium having computer executable instructions stored thereon which, when executed by a computer, cause the computer to:

• sample an image region of an oblique image;
• compute a descriptor vector of the sampled image region;
• apply a classifier function to the descriptor;
• and
• classify the sampled image region as consistent or inconsistent in response to applying the classifier.

A method for validating a map using an oblique image, the method comprising:

• establishing training data comprising descriptor vectors associated with known image data;
• establishing a classifier based on hyperplanes that separate the training data by a maximal margin;
• sampling an image region of the oblique image;
• computing a descriptor vector of the sampled image region of the oblique image;
• applying a classifier function to the descriptor vector of the sampled image region;
• classifying the sampled image region as consistent or inconsistent in response to applying the classifier;
• and
• correcting map data associated with the oblique image in response to classifying the sampled image region as inconsistent.