Image based CAPTCHA challenges
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United States of America Patent
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Aug 7, 2018
Grant Date -
Dec 28, 2017
app pub date -
Sep 11, 2017
filing date -
Dec 3, 2015
priority date (Note) -
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Abstract
Systems and methods of determining image characteristics are provided. More particularly, a first image having an unknown characteristic can be obtained. The first image can be provided to a plurality of user devices in a verification challenge. The verification challenge can include one or more instructions to be presented to a user of each user device. The instructions being determined based at least in part on the first image. User responses can be received, and an unknown characteristic of the first image can be determined based at least in part on the received responses. Subsequent to determining the unknown characteristic of the first image, one or more machine learning models can be trained based at least in part on the determined characteristic.
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