Patent ID: 8639023
Filing Date: 2014-01-28
Classification: G06T

Abstract:
1. A method for hierarchically matching a building image, comprising: designating a building adjacent to be included in a specific building group if the adjacent building is next to a specific building in a building image inputted as a query and a distance between the adjacent building and the specific building is less than a certain distance; matching the alignments of the buildings in the specific building group with those in a group of buildings included respectively in at least one panoramic image; selecting a panoramic image that includes a certain group of buildings recognized to have the same or similar alignments to the buildings in the specific building group among the at least one panoramic image as the result of matching the alignments of the buildings; matching a wall of the specific building with a wall of a building in the at least one panoramic image based on physical parameters of the wall by using a technology of matching a building's shape or repeated pattern; selecting a candidate panoramic image which includes a building recognized to have the same or similar wall to the specific building in the building image as a result of matching its wall with others; matching at least one local region, if containing a recognizable string or figure, in the specific building with local region in the building of the candidate panoramic image by using a technology of recognizing a string or a figure; and determining a top panoramic image with a top degree of matching accuracy in the candidate panoramic image as the result of matching the local region.