The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2013
Filed:
Oct. 20, 2008
Hideki Shimamura, Tokyo, JP;
Lin Zhu, Chiba, JP;
Hideki Shimamura, Tokyo, JP;
Lin Zhu, Chiba, JP;
Pasco Corporation, Tokyo, JP;
Abstract
It is an object to improve the accuracy of a house change judgment based on images and the like acquired by an airplane. A terrain altitude is subtracted from an attitude value of a digital surface model (DSM) acquired from an airplane or the like to generate a normalized DSM (NDSM). A judgment target region is segmented into a plurality of regions of elevated part for each elevated part with a size corresponding to a house appearing on the NDSM. An outline of the house is extracted from each region of elevated part and a house object containing three-dimensional information on the house is defined by the outline and NDSM data within the outline. The house objects acquired at two different time points, respectively, are compared to detect a variation between the two different time points, and a judgment as to a house change is made based on the variation.