{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11516440","patent":{"patent_number":"US-11516440","title":"Method for modal analysis of bridge structures based on surveillance videos","assignee":null,"inventors":[],"filing_date":"2021-11-24T00:00:00.000Z","publication_date":"2022-11-29T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":1,"abstract":"A method for modal analysis of bridge structures based on surveillance videos is provided. A plurality of continuous cameras are utilized for realizing high-precision surveillance for the structure of the bridge. Firstly, a plurality of regions are selected in the viewing angle of each of the cameras, and a conversion relation between images of the regions and actual displacements is calculated; next, displacements on the images shot by the cameras are converted into actual displacements of targets, so as to obtain displacements of the targets relative to the cameras; displacements of the adjacent cameras are sequentially passed according to a difference value from the ground of an abutment, so as to obtain displacements of all camera bodies; and finally, the displacements of all the targets relative to the ground of the abutment are calculated, and the structural mode of the bridge is calculated."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for modal analysis of bridge structures based on surveillance videos","description":"A method for modal analysis of bridge structures based on surveillance videos is provided. A plurality of continuous cameras are utilized for realizing high-precision surveillance for the structure of","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11516440","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-11516440","citation_suggestion":"Patentable. \"Method for modal analysis of bridge structures based on surveillance videos\" (US-11516440). https://patentable.app/patents/US-11516440","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11516440","json":"https://patentable.app/api/llm-context/US-11516440","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T10:18:02.559Z"}