{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8532417","patent":{"patent_number":"US-8532417","title":"Optimization of image encoding using perceptual weighting","assignee":null,"inventors":[],"filing_date":"2012-11-05T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N"],"num_claims":20,"abstract":"A method, system and computer program product for optimal encoding for an image defined by image data. The quantization table, run-length coding and Huffman codebook are selected to minimize a Lagrangian cost function, wherein the minimization includes iteratively determining the optimal run-size pairs and in-category indices for minimizing a rate-distortion cost function, and wherein the rate-distortion cost function includes a perceptual weighting factor applied to a quantization error. The perceptual weighting factor adjusts the rate-distortion cost function to apply greater weight to lower frequency quantization error than to higher frequency quantization error."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optimization of image encoding using perceptual weighting","description":"A method, system and computer program product for optimal encoding for an image defined by image data. The quantization table, run-length coding and Huffman codebook are selected to minimize a Lagrang","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8532417","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-8532417","citation_suggestion":"Patentable. \"Optimization of image encoding using perceptual weighting\" (US-8532417). https://patentable.app/patents/US-8532417","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8532417","json":"https://patentable.app/api/llm-context/US-8532417","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T12:45:08.229Z"}