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Chih-Wei Shiu
Researcher at National Chung Hsing University
Publications - 20
Citations - 993
Chih-Wei Shiu is an academic researcher from National Chung Hsing University. The author has contributed to research in topics: Information hiding & Payload (computing). The author has an hindex of 11, co-authored 20 publications receiving 836 citations. Previous affiliations of Chih-Wei Shiu include Sun Yat-sen University & National Taitung University.
Papers
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Reversible data hiding for high quality images using modification of prediction errors
TL;DR: Experimental results indicate that MPE, which innovatively exploits the modification of prediction errors, outperforms the prior works not only in terms of larger payload, but also in Terms of stego image quality.
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Encrypted signal-based reversible data hiding with public key cryptosystem
TL;DR: This paper proposes an encrypted signal-based reversible data hiding (ESRDH) with public key cryptosystem, not only for images, and the proposed scheme is secure based on Paillier homomorphic encryption.
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Encrypted image-based reversible data hiding with public key cryptography from difference expansion
TL;DR: The core of the proposed scheme is to pre-process an image with the property of difference expansion before encrypting, which provides good payload and image quality and shows the effectiveness of this scheme.
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A high capacity reversible data hiding scheme using orthogonal projection and prediction error modification
TL;DR: The orthogonal projection technique is employed to estimate the optimal weights of a linear predictor to increase the prediction accuracy and the embedding capacity and the experimental results revealed that the proposed method outperformed the existing histogram-shifting based reversible data hiding technique in terms of payload and image quality.
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Steganography for BTC compressed images using no distortion technique
TL;DR: An improved data hiding scheme to embed secret data in the compressed bitstreams where the quality of the image is maintained even after embedment and the new improved scheme increases payload and is reversible.