A Digital Rights Management Approach for Gray-Level Images. - Shu-Fen Tu; Ching-Sheng Hsu (ICAPR (2), 2005)

A Visual Cryptographic Technicque for Chromatic Images Using Multi-Pixel Encoding Method. - Young-Chang Hou; Shu-Fen Tu (J. Res. Pract. Inf. Technol., 2005)

A Statistical Approach for Ownership Identification of Digital Images. - Ching-Sheng Hsu; Shu-Fen Tu; Young-Chang Hou (ACIVS, 2006)

An Optimization Model for Visual Cryptography Schemes with Unexpanded Shares. - Ching-Sheng Hsu; Shu-Fen Tu; Young-Chang Hou (ISMIS, 2006)

A DCT-based ownership identification method with gray-level and colorful signatures. - Shu-Fen Tu; Ching-Sheng Hsu (Pattern Anal. Appl., 2006)

A VC-Based Copyright Protection Scheme for Digital Images of Multi-Authorship. - Shu-Fen Tu; Ching-Sheng Hsu (World Congress on Engineering, 2007)

An Imperceptible Watermarking Scheme Using Variation and Modular Operations. - Shu-Fen Tu; Ching-Sheng Hsu (MUE, 2008)

A joint ownership protection scheme for digital images based on visual cryptography. - Shu-Fen Tu; Ching-Sheng Hsu (Int. Arab J. Inf. Technol., 2012)

Protecting secret documents via a sharing and hiding scheme. - Shu-Fen Tu; Ching-Sheng Hsu (Inf. Sci., 2014)

Mobile recommendation system for cosmeceutical products. - Ching-Sheng Hsu; Shu-Fen Tu (ICUFN, 2015)

Image authentication based on QR decomposition and sinusoid. - Ching-Sheng Hsu; Shu-Fen Tu (ICCSE, 2016)

Enhancing the robustness of image watermarking against cropping attacks with dual watermarks. - Ching-Sheng Hsu; Shu-Fen Tu (Multim. Tools Appl., 2020)

Correction to: Enhancing the robustness of image watermarking against cropping attacks with dual watermarks. - Ching-Sheng Hsu; Shu-Fen Tu (Multim. Tools Appl., 2020)

Improving RE-SWOT Analysis with Sentiment Classification: A Case Study of Travel Agencies. - Shu-Fen Tu; Ching-Sheng Hsu; Yu-Tzu Lu (Future Internet, 2021)

Design of an e-diploma system based on consortium blockchain and facial recognition. - Ching-Sheng Hsu; Shu-Fen Tu; Pei-Chia Chiu (Educ. Inf. Technol., 2022)

A Loyalty System Incorporated with Blockchain and Call Auction. - Shu-Fen Tu; Ching-Sheng Hsu; Yan-Ting Wu (J. Theor. Appl. Electron. Commer. Res., 2022)

An on-site electronic voting system using blockchain and biometrics. - Shu-Fen Tu; Ching-Sheng Hsu; Bo-Long You (Int. Arab J. Inf. Technol., 2023)