Other

Lyft, Inc.

John Michael Sparks

Joan Devassy

Nadha Nafeeza Gafoor

Wei You

Ritwik Subir Das

Swarn Avinash Kumar

Kia Nishimine

Angela Lam

Wiebke Poerschke

Emily S Hackler

Hristo Stefanov Stefanov

Aahel Iyer

This disclosure describes a card-scan system that can update a card-scan machine learning model to improve card-character predictions for payment cards, driver licenses, or other character-bearing cards by using an active-learning technique that learns from card-scan representations indicating corrections by users to predicted card characters. In particular, the disclosed systems can use a client device to capture and analyze a set of card images of a character-bearing card to predict card characters using a card-scan machine learning model. The disclosed systems can further receive card-scan gradients representing one or more corrections to incorrectly predicted card characters. Based on the card-scan gradients, the disclosed systems can generate active-learning metrics and retrain or update the card-scan machine learning model based on such active-learning metrics. By utilizing and updating the card-scan machine learning model, the disclosed systems can improve the accuracy with which card-character-detection systems predict card characters while preserving data security and verifying the presence of a physical character-bearing card.

Automatically updating a card-scan machine learning model based on predicting card characters

An eyeglass attachment for practicing and/or playing the game of golf includes a frame having a portion for supporting an optical device in front of each eye of a wearer and a pair of optical devices disposed in the frame. Each of the optical devices, which may be a pair of lens, include two spaced apart relatively dark transparent portions with a relatively clear narrow portion therebetween. The clear narrow portions are oriented to enable clear visibility between the right and left side of the wearer. This enables the wearer to align a golf ball within the relatively clear portion to aid in the user's coordination of striking the golf ball in a coordinated manner. Blinders may be provided and attached to the frame so as to extend between each optical device and the wearer's temple for substantially eliminating light from entering between the optical devices and the wearer's eyes. In addition, the frame may be provided with hooks, or the like, for enabling attaching of the frame to a conventional pair of glasses.

Putting glasses

Growing community of inventors

San Francisco, CA, United States of America

John Michael Sparks