{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8494211","patent":{"patent_number":"US-8494211","title":"House change judgment method and house change judgment program","assignee":null,"inventors":[],"filing_date":"2008-10-20T00:00:00.000Z","publication_date":"2013-07-23T00:00:00.000Z","cpc_codes":["G01C","G01C","G06T","G06T","G06T","G06T","G06T","G06T"],"num_claims":16,"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."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"House change judgment method and house change judgment program","description":"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 mo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8494211","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8494211","citation_suggestion":"Patentable. \"House change judgment method and house change judgment program\" (US-8494211). https://patentable.app/patents/US-8494211","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8494211","json":"https://patentable.app/api/llm-context/US-8494211","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:17:24.438Z"}