{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9721178","patent":{"patent_number":"US-9721178","title":"Automatic extraction of closed caption data from frames of an audio video (AV) stream using image clipping","assignee":null,"inventors":[],"filing_date":"2016-05-31T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G06T","G06T","G06T","G06T","G06T","G06V","G06V","G06V","H04N","H04N","H04N","H04N","H04N","H04N","G06T","G06T","G06T","H04N"],"num_claims":18,"abstract":"Exemplary methods of extracting closed caption (CC) image from a frame of an audio video (AV) stream are described. For all pixels of the frame, setting a color value of the pixels to a determined pixel value when the color value of the pixel is different from a background color value associated with CC image. A set edges is analyzed to identify one or more polygons. A polygon that contains text is determined from the one or more polygons. The frame is cropped along the polygon to obtain a CC image. Upon determination that the CC image is identical to another closed caption image a frame count associated with the other closed caption image is increased by 1; and upon determination that the CC image is not identical to the other CC image the closed caption image is stored along with a position and a time value as metadata information."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Automatic extraction of closed caption data from frames of an audio video (AV) stream using image clipping","description":"Exemplary methods of extracting closed caption (CC) image from a frame of an audio video (AV) stream are described. For all pixels of the frame, setting a color value of the pixels to a determined pix","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9721178","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-9721178","citation_suggestion":"Patentable. \"Automatic extraction of closed caption data from frames of an audio video (AV) stream using image clipping\" (US-9721178). https://patentable.app/patents/US-9721178","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9721178","json":"https://patentable.app/api/llm-context/US-9721178","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:43:20.691Z"}