{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9681132","patent":{"patent_number":"US-9681132","title":"Methods and apparatus for adaptive loop filtering in video encoders and decoders","assignee":null,"inventors":[],"filing_date":"2011-11-22T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H04N","G06T","H04N","H04N","H04N"],"num_claims":29,"abstract":"Various implementations provide filtering for pictures. Several such implementations attempt to reduce artifacts caused by over-filtering in a decoding loop. Certain of these implementations provide multiple loop filters, and select a loop filter based on the result of a deblocking 5 filter. One particular implementation applies a first filter to a picture to produce a filtered picture. A second filter is selected based on a difference between a value of a particular pixel in the filtered picture and a value of a corresponding pixel in the picture. The second filter is applied to the particular pixel in the filtered picture. In another implementation, a signal or signal structure includes 10 an indication of the second filter, an encoding of at least a portion of a picture, and an encoding of at least a portion of a subsequent picture that has been encoded based on the output of the second filter above."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus for adaptive loop filtering in video encoders and decoders","description":"Various implementations provide filtering for pictures. Several such implementations attempt to reduce artifacts caused by over-filtering in a decoding loop. Certain of these implementations provide m","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9681132","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-9681132","citation_suggestion":"Patentable. \"Methods and apparatus for adaptive loop filtering in video encoders and decoders\" (US-9681132). https://patentable.app/patents/US-9681132","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9681132","json":"https://patentable.app/api/llm-context/US-9681132","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:16:40.516Z"}