{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11238274","patent":{"patent_number":"US-11238274","title":"Image feature extraction method for person re-identification","assignee":null,"inventors":[],"filing_date":"2017-12-27T00:00:00.000Z","publication_date":"2022-02-01T00:00:00.000Z","cpc_codes":["G06N","G06F","G06F","G06V","G06V","G06V"],"num_claims":10,"abstract":"An image feature extraction method for person re-identification includes performing person re-identification by means of aligned local descriptor extraction and graded global feature extraction; performing the aligned local descriptor extraction by processing an original image by affine transformation and performing a summation pooling operation on image block features of same regions to obtain an aligned local descriptor; reserving spatial information between inner blocks of the image for the aligned local descriptor; and performing the graded global feature extraction by grading a positioned pedestrian region block and solving a corresponding feature mean value to obtain a global feature. The method can resolve the problem of feature misalignment caused by posture changes of pedestrian, etc., and eliminate the effect of unrelated backgrounds on re-recognition, thus improving the precision and robustness of person re-identification."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image feature extraction method for person re-identification","description":"An image feature extraction method for person re-identification includes performing person re-identification by means of aligned local descriptor extraction and graded global feature extraction; perfo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11238274","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-11238274","citation_suggestion":"Patentable. \"Image feature extraction method for person re-identification\" (US-11238274). https://patentable.app/patents/US-11238274","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11238274","json":"https://patentable.app/api/llm-context/US-11238274","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T22:21:49.810Z"}