{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9813593","patent":{"patent_number":"US-9813593","title":"Outside recognition apparatus and lens dirtiness detection method","assignee":null,"inventors":[],"filing_date":"2014-06-05T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["H04N","G06T","G06T","G06T","G06T","G06T","G06T","G06T"],"num_claims":10,"abstract":"It is possible to consider an image as a composite wave that is the result of layering waves having differing periods and amplitudes. An image captured via a lens having a water droplet attached thereto has a higher occurrence of changes such as image blur than an image that does not have a water droplet attached thereto, which means that this type of change in an image results in changes in the composite wave thereof as well. Provided is a lens dirtiness detection device that suitably determines whether a lens is dirty without being affected by a background image by: focusing on the occurrence of large changes in the composite wave of an image that accompany an increase in the dirtiness of a camera lens; extracting each of the image frequency components that constitute the composite wave; and analyzing changes in the magnitude relation between the frequency components."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Outside recognition apparatus and lens dirtiness detection method","description":"It is possible to consider an image as a composite wave that is the result of layering waves having differing periods and amplitudes. An image captured via a lens having a water droplet attached there","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9813593","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-9813593","citation_suggestion":"Patentable. \"Outside recognition apparatus and lens dirtiness detection method\" (US-9813593). https://patentable.app/patents/US-9813593","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9813593","json":"https://patentable.app/api/llm-context/US-9813593","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:39:25.213Z"}