{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9681047","patent":{"patent_number":"US-9681047","title":"Image feature extraction method and system","assignee":null,"inventors":[],"filing_date":"2015-07-30T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H04N","G06V","H04N"],"num_claims":10,"abstract":"Disclosed is an image feature extraction method including a step of defining a combination of at least two kinds of solid angles along at least two directions, of an input spherical image; a step of determining respective values of the combination of the at least two kinds of solid angles, so that surface areas of spherical crowns of spherical segments, which are obtained by dividing the spherical image by the respective values of the combination of the at least two kinds solid angles, have a same value; and a step of generating, by utilizing the respective values of the combination of the at least two kinds of solid angles, an image feature template so as to conduct image feature extraction."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image feature extraction method and system","description":"Disclosed is an image feature extraction method including a step of defining a combination of at least two kinds of solid angles along at least two directions, of an input spherical image; a step of d","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9681047","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-9681047","citation_suggestion":"Patentable. \"Image feature extraction method and system\" (US-9681047). https://patentable.app/patents/US-9681047","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9681047","json":"https://patentable.app/api/llm-context/US-9681047","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:58:58.465Z"}