公开(公告)号：US12118096B2

公开(公告)日：2024-10-15

申请号：US17948648

申请日：2022-09-20

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Qiang Zhang ,  Bin Wang ,  Pengfei Wang ,  Yuandi Shi ,  Rongrong Chen ,  Xiaopeng Wei

IPC: G06F17/16 ,  G06F21/60 ,  G06N7/01

CPC classification number: G06F21/602 ,  G06F17/16 ,  G06N7/01

Abstract: The present disclosure discloses an image encryption method based on multi-scale compressed sensing and a Markov model. According to the difference in information carried by low-frequency coefficients and high-frequency coefficients of an image, different sampling rates are set for the low-frequency coefficients and the high-frequency coefficients of the image, which can effectively improve the reconstruction quality of a decrypted image. The decrypted image obtained by the present disclosure has higher quality than the decrypted image generated by the existing scheme, and a better visual effect and more complete original image information can be obtained.