{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8483501","patent":{"patent_number":"US-8483501","title":"Method and device for transformation of image and method and device for reverse transformation of image","assignee":null,"inventors":[],"filing_date":"2011-07-22T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["G06F","H04N"],"num_claims":42,"abstract":"Provided are methods and apparatuses for transforming and inverse-transforming an image. The method of transforming an image includes: generating a substituted N×N transformation matrix by substituting elements of an N×N transformation matrix used for a 1-dimensional (1D) discrete cosine transform (DCT) of a N×N block of the image with values based on N variables, where N is an integer; obtaining a multiplication matrix of the substituted N×N transformation matrix and a transposed matrix of the substituted N×N transformation matrix; obtaining the N variables that enable a sum of squares of elements excluding diagonal components of the obtained multiplication matrix to be a minimum; and transforming the N×N block by using the substituted N×N transformation matrix, which is substituted with the values based on the obtained N variables."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and device for transformation of image and method and device for reverse transformation of image","description":"Provided are methods and apparatuses for transforming and inverse-transforming an image. The method of transforming an image includes: generating a substituted N×N transformation matrix by substitutin","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8483501","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-8483501","citation_suggestion":"Patentable. \"Method and device for transformation of image and method and device for reverse transformation of image\" (US-8483501). https://patentable.app/patents/US-8483501","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8483501","json":"https://patentable.app/api/llm-context/US-8483501","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:56:06.372Z"}