{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8487993","patent":{"patent_number":"US-8487993","title":"Estimating vehicle height using homographic projections","assignee":null,"inventors":[],"filing_date":"2009-07-29T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["G06T","G06T","G06T","G06T"],"num_claims":27,"abstract":"Multiple homography transformations corresponding to different heights are generated in the field of view. A group of salient points within a common estimated height range is identified in a time series of video images of a moving object. Inter-salient point distances are measured for the group of salient points under the multiple homography transformations corresponding to the different heights. Variations in the inter-salient point distances under the multiple homography transformations are compared. The height of the group of salient points is estimated to be the height corresponding to the homography transformation that minimizes the variations."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Estimating vehicle height using homographic projections","description":"Multiple homography transformations corresponding to different heights are generated in the field of view. A group of salient points within a common estimated height range is identified in a time seri","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8487993","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-8487993","citation_suggestion":"Patentable. \"Estimating vehicle height using homographic projections\" (US-8487993). https://patentable.app/patents/US-8487993","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8487993","json":"https://patentable.app/api/llm-context/US-8487993","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T12:25:00.048Z"}