Header menu link for other important links
X
Imperceptibility - Robustness tradeoff studies for ECG steganography using Continuous Ant Colony Optimization
, Edward Jero, Ramakrishnan Swaminathan
Published in Elsevier Ltd
2016
Volume: 49
   
Pages: 123 - 135
Abstract
ECG Steganography ensures protection of patient data when ECG signals embedded with patient data are transmitted over the internet. Steganography algorithms strive to recover the embedded patient data entirely and to minimize the deterioration in the cover signal caused by the embedding. This paper presents a Continuous Ant Colony Optimization (CACO) based ECG Steganography scheme using Discrete Wavelet Transform and Singular Value Decomposition. Quantization techniques allow embedding the patient data into the ECG signal. The scaling factor in the quantization techniques governs the tradeoff between imperceptibility and robustness. The novelty of the proposed approach is to use CACO in ECG Steganography, to identify Multiple Scaling Factors (MSFs) that will provide a better tradeoff compared to uniform Single Scaling Factor (SSF). The optimal MSFs significantly improve the performance of ECG steganography which is measured by metrics such as Peak Signal to Noise Ratio, Percentage Residual Difference, Kullback-Leibler distance and Bit Error Rate. Performance of the proposed approach is demonstrated on the MIT-BIH database and the results validate that the tradeoff curve obtained through MSFs is better than the tradeoff curve obtained for any SSF. The results also advocate appropriate SSFs for target imperceptibility or robustness. © 2015 Elsevier Ltd. All rights reserved.
About the journal
JournalData powered by TypesetExpert Systems with Applications
PublisherData powered by TypesetElsevier Ltd
ISSN09574174
Open AccessNo
Concepts (21)
  •  related image
    Ant colony optimization
  •  related image
    Artificial intelligence
  •  related image
    Bit error rate
  •  related image
    Discrete wavelet transforms
  •  related image
    HOSPITAL DATA PROCESSING
  •  related image
    Intelligent control
  •  related image
    Quantization (signal)
  •  related image
    Signal to noise ratio
  •  related image
    Singular value decomposition
  •  related image
    Steganography
  •  related image
    Wavelet decomposition
  •  related image
    Wavelet transforms
  •  related image
    KULLBACK-LEIBLER DISTANCE
  •  related image
    MIT-BIH DATABASE
  •  related image
    PATIENT DATA
  •  related image
    Peak signal to noise ratio
  •  related image
    Performance metrics
  •  related image
    SCALING FACTORS
  •  related image
    TRADE-OFF CURVES
  •  related image
    TRADE-OFF STUDY
  •  related image
    Electrocardiography