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:
Oct. 09, 2012
Filed:
Jun. 21, 2006
Atsumasa Ozawa, Tokyo, JP;
Atsumasa Ozawa, Tokyo, JP;
Pasco Corporation, Tokyo, JP;
Abstract
A house change judging method is provided for judging a change of a house in a data acquisition region based on new and old data concerning two periods, which have been aerially acquired, including: extracting as a judgment target region a predetermined region in the new data by trimming with house polygon data corresponding to a predetermined region prepared in advance; computing, after the extraction, as evaluation values, two kinds of new and old difference values between the two periods with respect to a gradation value of color image data and an altitude value of altitude data across the entire judgment target region; and judging, after the computation, based on the evaluation values, whether a house change has occurred in the judgment target region by referring to a judging table including combinations of two kinds of preset evaluation criterion values.