{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11971493","patent":{"patent_number":"US-11971493","title":"Indoor positioning method based on image visual features and electronic device","assignee":null,"inventors":[],"filing_date":"2023-05-09T00:00:00.000Z","publication_date":"2024-04-30T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","H04W","G01S"],"num_claims":14,"abstract":"An indoor positioning method based on image visual features is disclosed. A Wi-Fi signal strength value of a Wi-Fi tag is matched with a signal strength list to obtain a first location of a first Wi-Fi tag with the greatest matching degree. A SURF descriptor of an image of the Wi-Fi tag is matched with SURF descriptors recorded in the signal strength list to discover an image of a Wi-Fi tag with the greatest matching degree, thereby obtaining a second location of a second Wi-Fi tag corresponding to the image of the Wi-Fi tag with the greatest matching degree. A three location of a three Wi-Fi tag is obtained according to a homography matrix corresponding to the image of the Wi-Fi tag with the largest matching degree. Positioning information of the mobile device is obtained according to the first location, the second location and the third location."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Indoor positioning method based on image visual features and electronic device","description":"An indoor positioning method based on image visual features is disclosed. A Wi-Fi signal strength value of a Wi-Fi tag is matched with a signal strength list to obtain a first location of a first Wi-F","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11971493","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-11971493","citation_suggestion":"Patentable. \"Indoor positioning method based on image visual features and electronic device\" (US-11971493). https://patentable.app/patents/US-11971493","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11971493","json":"https://patentable.app/api/llm-context/US-11971493","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:34:18.442Z"}