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A multispectral photon-counting double random phase encoding scheme for image authentication.
Faliu Yi1, Inkyu Moon2, Yeon H Lee3
1Department of Computer Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Korea. yifaliu@chosun.kr.
Sensors (Basel, Switzerland)
|May 24, 2014
Summary
This study introduces a novel color image authentication method using multispectral photon-counting imaging and double random phase encoding. The technique enhances security against intruders by combining sparse data with noise signals for robust verification.
Area of Science:
- Computer Vision
- Image Processing
- Information Security
Background:
- Traditional image authentication methods face challenges with sophisticated security threats.
- Multispectral Photon-Counting Imaging (MPCI) offers unique data characteristics for security applications.
- Double Random Phase Encoding (DRPE) is a known technique for image encryption.
Purpose of the Study:
- To develop a secure and robust color image authentication system.
- To leverage the combined strengths of MPCI and DRPE for enhanced security.
- To investigate the impact of Bayer image interpolation on authentication performance.
Main Methods:
- The proposed method integrates Multispectral Photon-Counting Imaging (MPCI) with Double Random Phase Encoding (DRPE).
- Original multispectral RGB images are down-sampled to a Bayer image, then encrypted using DRPE.
- Photon counting is applied to the amplitude component, retaining phase information for decryption and verification via nonlinear correlations.
Main Results:
- Experimental results demonstrate that retrieved images do not visually resemble original images, indicating effective encryption.
- The proposed method successfully verifies original color images using statistical nonlinear correlations.
- Different interpolation algorithms applied to Bayer images show varying effects on multispectral RGB color image verification.
Conclusions:
- The combined MPCI and DRPE approach provides a secure method for color image authentication.
- The system effectively prevents unauthorized access and tampering.
- The choice of interpolation algorithm for Bayer images is a critical factor influencing authentication accuracy.
