An n-Dimensional Chaotic Map with Application in Reversible Data Hiding for Medical Images

Entropy, Journal Year: 2024, Volume and Issue: 26(3), P. 254 - 254

Published: March 13, 2024

The drawbacks of a one-dimensional chaotic map are its straightforward structure, abrupt intervals, and ease signal prediction. Richer performance more complicated structure required for multidimensional mapping. To address the shortcomings current systems, an n-dimensional cosine-transform-based system (nD-CTBCS) with coupling model is suggested in this study. create maps any desired dimension, nD-CTBCS can take advantage already-existing 1D as seed maps. Three two-dimensional provided examples to illustrate impact. findings evaluation experiments demonstrate that newly created function better, have broader display hyperchaotic behavior. further practicability nD-CTBCS, reversible data hiding scheme proposed secure communication medical images. experimental results show method has higher security than existing methods.

Language: Английский

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Application of visual perception and recognition technology of intelligent inspection robots in Guanyinyan Hydropower Station

Published: Jan. 15, 2025

In order to ensure the safe operation of hydropower stations, a device state extraction and recognition method based on visual perception inspection robots is proposed. The experimental results show that proposed has lowest accuracy for buttons, switches, text, instrument readings, which are 97.2%, 96.8%, 97.7%, 94.7%, respectively. average 97.9%, 97.4%, 98.7%, 95.3%, respectively, higher than other algorithms. addition, area under working characteristic curve 0.97, algorithms, its recall completely envelops above indicate equipment can accurately identify status different equipment, providing strong support stations.

Language: Английский

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Blind color image watermarking algorithm in quaternion domain based on QR decomposition

Published: July 19, 2024

To provide a solution to the copyright protection problem of color images, blind image watermarking algorithm in quaternion domain based on QR decomposition is proposed. Firstly, Contourlet transform are applied R, G and B channels carrier respectively, low-frequency subbands taken construct matrix, discrete cosine then inverse performed real part matrix after get intermediate process matrix. Finally, above split into non-overlapping blocks, encrypted binary watermark embedded upper triangular obtained from blocks. The experimental date demonstrate that images extracted by still discernible some common processing attacks, so it has certain robustness.

Language: Английский

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An integrated blockchain and fractional DCT based highly secured framework for storage and retrieval of retinal images

Ain Shams Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 103047 - 103047

Published: Sept. 1, 2024

Language: Английский

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