{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11973986","patent":{"patent_number":"US-11973986","title":"Video signal processing method and device using secondary transform","assignee":null,"inventors":[],"filing_date":"2023-02-03T00:00:00.000Z","publication_date":"2024-04-30T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":20,"abstract":"A video signal processing device includes a processor. The processor is configured to obtain a secondary transform kernel for a current block based on an intra prediction mode of the current block to which a secondary transform is applied, to obtain a secondary inverse transformed block by performing a secondary inverse transform on a top-left specific region of the current block using the secondary transform kernel, wherein the secondary inverse transform is an inverse transform of the secondary transform, and the secondary transform is a low frequency non-separable transform, to obtain a residual block of the current block by performing a primary inverse transform on the secondary inverse transformed block, wherein one or more coefficients of the top-left specific region of the current block are derived in a preset scan order and the preset scan order is a 4×4 up-right diagonal scan order regardless of a size of the current block."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Video signal processing method and device using secondary transform","description":"A video signal processing device includes a processor. The processor is configured to obtain a secondary transform kernel for a current block based on an intra prediction mode of the current block to ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11973986","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-11973986","citation_suggestion":"Patentable. \"Video signal processing method and device using secondary transform\" (US-11973986). https://patentable.app/patents/US-11973986","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11973986","json":"https://patentable.app/api/llm-context/US-11973986","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:02:24.263Z"}