{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9704259","patent":{"patent_number":"US-9704259","title":"People counting device and people counting method","assignee":null,"inventors":[],"filing_date":"2014-03-14T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["G06T","G06T","G06T","G06V","G06T","G06T","G06T","G06T","G06T","G06T","G06V"],"num_claims":6,"abstract":"A people counting device includes an edge extracting unit configured to extract an edge from a planar image of a target area, and a circle candidate detecting unit configured to detect a circle candidate included in the planar image based on the edge extracted by the edge extracting unit. The people counting device further includes a person determining unit configured to calculate a brightness gradient for each edge pixel constituting an edge of each circle candidate detected by the circle candidate detecting unit and determine that a circle candidate whose uniformity of brightness gradients for the edge pixels of the circle candidate is higher than a reference is a person's head portion, and a people counting unit configured to count the number of circle candidates determined to be a person's head portion by the person determining unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"People counting device and people counting method","description":"A people counting device includes an edge extracting unit configured to extract an edge from a planar image of a target area, and a circle candidate detecting unit configured to detect a circle candid","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9704259","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-9704259","citation_suggestion":"Patentable. \"People counting device and people counting method\" (US-9704259). https://patentable.app/patents/US-9704259","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9704259","json":"https://patentable.app/api/llm-context/US-9704259","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:33:53.614Z"}