{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8483518","patent":{"patent_number":"US-8483518","title":"Image-based CAPTCHA exploiting context in object recognition","assignee":null,"inventors":[],"filing_date":"2010-02-19T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["G06F","G06F","G06T","G06T","G06T","G06T"],"num_claims":20,"abstract":"Techniques for an image-based CAPTCHA for object recognition are described. The disclosure describes adding images to a database by collecting images by querying descriptive keywords to an image search engine or crawling images from the Internet.The disclosure describes generating the image-based CAPTCHA. The image is retrieved from the database, along with objects having significant values. An object is cropped from its image. The portion on the image where the object has been cropped is filled with image inpainting. The process obtains other objects from the database. The object is mixed among the other objects to form a set of candidate objects. A user is asked to select “the object” from the set of candidate objects that fits or matches the image. The image-based CAPTCHA evaluates whether a response, the selection, is from a human or a bot."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image-based CAPTCHA exploiting context in object recognition","description":"Techniques for an image-based CAPTCHA for object recognition are described. The disclosure describes adding images to a database by collecting images by querying descriptive keywords to an image searc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8483518","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-8483518","citation_suggestion":"Patentable. \"Image-based CAPTCHA exploiting context in object recognition\" (US-8483518). https://patentable.app/patents/US-8483518","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8483518","json":"https://patentable.app/api/llm-context/US-8483518","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:13:48.530Z"}