Patent ID: 11899772
Assignee: CAPITAL ONE SERVICES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A system, comprising:
a database containing a plurality of image records, each image record comprising an image field, a distorted image field, a label field and an applied algorithm identifier field; and
a server in data communication with the database, wherein the server comprises:
a memory containing a plurality of adversarial attack algorithms, each adversarial attack algorithm having an identifier;
an image distortion interface stored in the memory and configured to:
select an image record from the database;
retrieve a selected image stored in the image field of the selected image record;
determine a size of the selected image;
apply one of the adversarial attack algorithms to create an array of pixels that is the size of the selected image;
merge the array of pixels with the selected image to form a distorted image; and
update the selected image record in the database by storing the distorted image in the distorted image field of the selected image record and storing the identifier of the applied adversarial attack algorithm in the applied algorithm identifier field of the selected image record; and

a CAPTCHA test interface stored in the memory and configured to:
select only a set of image records that have a same label stored in the label field;
retrieve a showcase set of distorted images from a plurality of distorted image fields of the selected set of image records;
provide a CAPTCHA test using the showcase set of distorted images, by displaying only the set of distorted images with the same label; and
receive a result from the CAPTCHA test.