{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9805277","patent":{"patent_number":"US-9805277","title":"Apparatus and method for detecting bar-type traffic sign in traffic sign recognition system","assignee":null,"inventors":[],"filing_date":"2016-03-31T00:00:00.000Z","publication_date":"2017-10-31T00:00:00.000Z","cpc_codes":["G06V","G06F","G06V"],"num_claims":8,"abstract":"Disclosed are an apparatus and a method for detecting a bar-type sign in a traffic sign recognition system. The method may include a traffic sign detection step of detecting a traffic sign from image information including the traffic sign; a recognition region setting step of setting a recognition region on the traffic sign detected through the traffic sign detection step; a principal component analysis (PCA) operation processing step of applying a PCA algorithm to all pixels in the recognition region set through the recognition region setting step, and determining an eigenvector; and a sign determination step of determining an angle “α” of the eigenvector, comparing a deviation “d” of the determined angle with a threshold value “Pt”, and determining whether to correspond to a bar-type sign."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for detecting bar-type traffic sign in traffic sign recognition system","description":"Disclosed are an apparatus and a method for detecting a bar-type sign in a traffic sign recognition system. The method may include a traffic sign detection step of detecting a traffic sign from image ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9805277","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-9805277","citation_suggestion":"Patentable. \"Apparatus and method for detecting bar-type traffic sign in traffic sign recognition system\" (US-9805277). https://patentable.app/patents/US-9805277","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9805277","json":"https://patentable.app/api/llm-context/US-9805277","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:52:32.832Z"}