{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8526492","patent":{"patent_number":"US-8526492","title":"Encoding method, decoding method, and encoding apparatus for a digital picture sequence","assignee":null,"inventors":[],"filing_date":"2004-11-04T00:00:00.000Z","publication_date":"2013-09-03T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":10,"abstract":"Rate control mechanisms for video encoding aim to provide the best possible video quality while keeping given conditions on transmission rate and decoding delay. In order to achieve a constant video quality, the anchor and non-anchor frames of different frame types are encoded using a different number of bits. However, since video sequences generally contain widely varying picture content and previously coded frames are used to predict a given frame, a suitable assignment of frame target bit rates is hard to determine, especially for non-anchor frames. According to the invention, non-anchor frames are coded using a fixed quantization parameter. Since the quantization parameter used for the encoding of non-anchor frames is directly derived from the average quantization parameter of the previously encoded anchor frame, such approach ensures a constant video quality. Beside of that, the complexity of the rate control strategy is reduced, because no macroblock-level rate control is applied for the encoding of non-anchor frames."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Encoding method, decoding method, and encoding apparatus for a digital picture sequence","description":"Rate control mechanisms for video encoding aim to provide the best possible video quality while keeping given conditions on transmission rate and decoding delay. In order to achieve a constant video q","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8526492","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-8526492","citation_suggestion":"Patentable. \"Encoding method, decoding method, and encoding apparatus for a digital picture sequence\" (US-8526492). https://patentable.app/patents/US-8526492","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8526492","json":"https://patentable.app/api/llm-context/US-8526492","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:31:29.836Z"}