{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8488900","patent":{"patent_number":"US-8488900","title":"Identifying and redressing shadows in connection with digital watermarking and fingerprinting","assignee":null,"inventors":[],"filing_date":"2011-06-21T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["G06T","G06T","G06T","G06T"],"num_claims":21,"abstract":"The present disclosure relates generally to cell phones and cameras, and to shadow detection in images captured by such cell phones and cameras. One claim recites a method comprising: identifying a shadow cast by a camera on a subject being imaged; and using a programmed electronic processor, redressing the shadow in connection with: i) reading a digital watermark from imagery captured of the subject, or ii) calculating a fingerprint from the imagery captured of the subject. Another claim recites a method comprising: identifying a shadow cast by a cell phone on a subject being imaged by a camera included in the cell phone; and using a programmed electronic processor, determining a proximity of the camera to the subject based on an analysis of the shadow. Of course, other claims and combinations are provided too."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Identifying and redressing shadows in connection with digital watermarking and fingerprinting","description":"The present disclosure relates generally to cell phones and cameras, and to shadow detection in images captured by such cell phones and cameras. One claim recites a method comprising: identifying a sh","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8488900","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-8488900","citation_suggestion":"Patentable. \"Identifying and redressing shadows in connection with digital watermarking and fingerprinting\" (US-8488900). https://patentable.app/patents/US-8488900","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8488900","json":"https://patentable.app/api/llm-context/US-8488900","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T02:49:41.714Z"}