公开(公告)号：US12254077B2

公开(公告)日：2025-03-18

申请号：US16709224

申请日：2019-12-10

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Scott Moe ,  Nicholas Penha Malaya ,  Sudhanva Gurumurthi ,  Naman Maheshwari

IPC: G06F7/04 ,  G06F15/16 ,  G06F21/45 ,  G06F21/46 ,  G06N3/08 ,  G06T11/00 ,  H04L29/06

Abstract: An apparatus includes one or more processors that are configured to determine a pixel-by-pixel bounds for a perturbed image, generate an adversarial example using an adversarial example generation technique, and modify the adversarial example to generate the perturbed image based on the pixel-by-pixel bounds. When an initial perturbed image does not reside within the pixel-by-pixel bounds, the one or more processors adjust the initial perturbed image to generate the perturbed image by a Weber-Fechner based adversarial perturbation to reside within the pixel-by-pixel bounds. The one or more processors provide the perturbed image to a computing device in an image-based Completely Automated Public Turing Test to tell Computers and Humans Apart (CAPTCHA).