{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8488878","patent":{"patent_number":"US-8488878","title":"Sky detection system used in image extraction device and method using sky detection system","assignee":null,"inventors":[],"filing_date":"2010-06-03T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["G06V","G06F","G06V"],"num_claims":12,"abstract":"Disclosed is a sky detection system that detects sky in an image collection device. The system includes an image collection unit that collects information of a color image; a color-feature extraction unit that extracts a color feature of each pixel from the collected image; a distance measurement unit that measures a distance between each pixel of the collected image and a lens; a first classification unit that classifies each pixel of the collected image as either a sky pixel or a non-sky pixel based on the color feature; and a second classification unit that further classifies each pixel of the collected image as either the sky pixel or the non-sky pixel based on the distance and a result of the first classification unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Sky detection system used in image extraction device and method using sky detection system","description":"Disclosed is a sky detection system that detects sky in an image collection device. The system includes an image collection unit that collects information of a color image; a color-feature extraction ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8488878","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-8488878","citation_suggestion":"Patentable. \"Sky detection system used in image extraction device and method using sky detection system\" (US-8488878). https://patentable.app/patents/US-8488878","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8488878","json":"https://patentable.app/api/llm-context/US-8488878","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:15:02.457Z"}