{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9640142","patent":{"patent_number":"US-9640142","title":"Apparatus for detecting region of interest and method thereof","assignee":null,"inventors":[],"filing_date":"2014-12-01T00:00:00.000Z","publication_date":"2017-05-02T00:00:00.000Z","cpc_codes":["G06F","G06T","G06T","G06V","G09G","G06T","G06V","G09G","G09G","G09G"],"num_claims":20,"abstract":"A method for detecting a region of interest (ROI) is provided, which includes acquiring a plurality of photographed images by photographing a display apparatus sequentially displaying thereon a plurality of different mono-color images, comparing gray levels of the plurality of photographed images and detecting a target region, and detecting a plurality of corner points of the target region, and detecting the region of interest (ROI) corresponding to a display screen of the display apparatus based on the plurality of corner points."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus for detecting region of interest and method thereof","description":"A method for detecting a region of interest (ROI) is provided, which includes acquiring a plurality of photographed images by photographing a display apparatus sequentially displaying thereon a plural","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9640142","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-9640142","citation_suggestion":"Patentable. \"Apparatus for detecting region of interest and method thereof\" (US-9640142). https://patentable.app/patents/US-9640142","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9640142","json":"https://patentable.app/api/llm-context/US-9640142","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T18:30:59.024Z"}