{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11238309","patent":{"patent_number":"US-11238309","title":"Selecting keypoints in images using descriptor scores","assignee":null,"inventors":[],"filing_date":"2018-12-26T00:00:00.000Z","publication_date":"2022-02-01T00:00:00.000Z","cpc_codes":["G06T","G06F","G06T","G06V","G06T","G06V"],"num_claims":25,"abstract":"An example apparatus for selecting keypoints in image includes a keypoint detector to detect keypoints in a plurality of received images. The apparatus also includes a score calculator to calculate a keypoint score for each of the detected keypoints based on a descriptor score indicating descriptor invariance. The apparatus includes a keypoint selector to select keypoints based on the calculated keypoint scores. The apparatus also further includes a descriptor calculator to calculate descriptors for each of the selected keypoints. The apparatus also includes a descriptor matcher to match corresponding descriptors between images in the plurality of received images. The apparatus further also includes a feature tracker to track a feature in the plurality of images based on the matched descriptors."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Selecting keypoints in images using descriptor scores","description":"An example apparatus for selecting keypoints in image includes a keypoint detector to detect keypoints in a plurality of received images. The apparatus also includes a score calculator to calculate a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11238309","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-11238309","citation_suggestion":"Patentable. \"Selecting keypoints in images using descriptor scores\" (US-11238309). https://patentable.app/patents/US-11238309","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11238309","json":"https://patentable.app/api/llm-context/US-11238309","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T07:35:12.657Z"}