{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9628805","patent":{"patent_number":"US-9628805","title":"Tunable multi-part perceptual image hashing","assignee":null,"inventors":[],"filing_date":"2015-05-19T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H04N","G06F","G06F","G06F","G06F","G06F","H04N","H04N"],"num_claims":30,"abstract":"Systems and methods generate a perceptual image hash of an image. The perceptual image hash can be generated from multiple features extracted from a DCT transformation of the image. The perceptual image hash can be compared to other perceptual image hash values using a weighted Hamming distance function."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Tunable multi-part perceptual image hashing","description":"Systems and methods generate a perceptual image hash of an image. The perceptual image hash can be generated from multiple features extracted from a DCT transformation of the image. The perceptual ima","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9628805","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-9628805","citation_suggestion":"Patentable. \"Tunable multi-part perceptual image hashing\" (US-9628805). https://patentable.app/patents/US-9628805","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9628805","json":"https://patentable.app/api/llm-context/US-9628805","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:21:08.979Z"}