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AssigneeRobert Bosch GmbH
InventorsJi Eun KIM, Kevin H. HUANG, Mohammad Sadegh NOROUZZADEH, Shashank SHEKHAR
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Systems and methods for constructing and managing a unique road sign knowledge graph across various countries and regions is disclosed. The system utilizes machine learning methods to assist humans when comparing a new sign template with a plurality of stored sign templates to reduce or eliminate redundancy in the road sign knowledge graph. Such a machine learning method and system is also used in providing visual attributes of road signs such as sign shapes, colors, symbols, and the like. If the machine learning determines that the input road sign template is not found in the road sign knowledge graph, the input sign template can be added to the road sign knowledge graph. The road sign knowledge graph can be maintained to add signs templates that are not already in the knowledge graph but are found in real-world by integrating human annotator's feedback during ground truth generation for machine learning.
A system of constructing a road sign knowledge graph for use in machine-learning road sign recognition, including labeling tools to train machine learning models, the system comprising:
A method of constructing and maintaining a road sign knowledge graph for use in a machine-learning road sign recognition system, the method comprising:
A system comprising:
Dependencies are inferred from the claim text.