Sparse adversarial attack method based on weighted gradient hash activation thermodynamic diagram

• Main Authors: SHI RONGHUA, HU CHAO, HUANG LIANG
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a sparse adversarial attack method based on a weighted gradient Hash activation thermodynamic diagram, which comprises the following steps of: 1, inputting a query video into a video Hash retrieval model to obtain a query video Hash code; 2, acquiring a target video set and respectively inputting target videos in the target video set into the video hash retrieval model to generate a plurality of target video hash codes; and 3, performing point multiplication on the query video hash code and the plurality of target video hash codes, and constructing a Hamming distance function between the query video hash code and the plurality of target video hash codes. According to the sparse adversarial attack method based on the weighted gradient hash activation thermodynamic diagram, the position and the sensitive area of the sparse adversarial attack are determined by using the accuracy of the sensitivity of the weighted gradient hash activation thermodynamic diagram, the pixel cost of the adversa