{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9832456","patent":{"patent_number":"US-9832456","title":"Multiscale depth estimation using depth from defocus","assignee":null,"inventors":[],"filing_date":"2015-12-17T00:00:00.000Z","publication_date":"2017-11-28T00:00:00.000Z","cpc_codes":["H04N","G06T","G06T","H04N","H04N","H04N","H04N","H04N","G06T","G06T","G06T","G06T","H04N"],"num_claims":23,"abstract":"To extend the working range of depth from defocus (DFD) particularly on small depth of field (DoF) images, DFD is performed on an image pair at multiple spatial resolutions and the depth estimates are then combined. Specific implementations construct a Gaussian pyramid for each image of an image pair, perform DFD on the corresponding pair of images at each level of the two image pyramids, convert DFD depth scores to physical depth values using calibration curves generated for each level, and combine the depth values from all levels in a coarse-to-fine manner to obtain a final depth map that covers the entire depth range of the scene."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multiscale depth estimation using depth from defocus","description":"To extend the working range of depth from defocus (DFD) particularly on small depth of field (DoF) images, DFD is performed on an image pair at multiple spatial resolutions and the depth estimates are","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9832456","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-9832456","citation_suggestion":"Patentable. \"Multiscale depth estimation using depth from defocus\" (US-9832456). https://patentable.app/patents/US-9832456","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9832456","json":"https://patentable.app/api/llm-context/US-9832456","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:04:09.890Z"}