{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9792491","patent":{"patent_number":"US-9792491","title":"Approaches for object tracking","assignee":null,"inventors":[],"filing_date":"2014-03-19T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["G06T","G06T","G06V","G06V","G06V","G06V","G06V","G06T","G06T"],"num_claims":21,"abstract":"The location of a user's head, for purposes such as head tracking or motion input, can be determined using a two-step process. In a first step, at least one image is captured including a representation of at least a portion of the person, such as a head portion of the person. In a second step, a contour of the head portion can be determined, and a two-dimensional model, for example, an ellipse or other similar shape can be used to approximate the head portion of the person represented in the image. The ellipse, for example, can be modeled using a number of shapes, such as rectangles, and the portion of the person can be tracked by locating an ellipse that bounds a maximum intensity gradient of pixel values in each one of a series of images."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Approaches for object tracking","description":"The location of a user's head, for purposes such as head tracking or motion input, can be determined using a two-step process. In a first step, at least one image is captured including a representatio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9792491","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-9792491","citation_suggestion":"Patentable. \"Approaches for object tracking\" (US-9792491). https://patentable.app/patents/US-9792491","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9792491","json":"https://patentable.app/api/llm-context/US-9792491","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:56:08.898Z"}