Random Girds-Based Threshold Visual Secret Sharing with Improved Contrast by Boolean Operations. - Xuehu Yan; Guohui Chen; Ching-Nung Yang; Song-Ruei Cai (IWDW, 2014)

Reducing shadow size in essential secret image sharing by conjunctive hierarchical approach. - Ching-Nung Yang; Peng Li 050; Chih-Cheng Wu; Song-Ruei Cai (Signal Process. Image Commun., 2015)

3-Out-of-n Cheating Prevention Visual Cryptographic Schemes. - Ching-Nung Yang; Stelvio Cimato; Jihi-Han Wu; Song-Ruei Cai (ICISSP, 2016)

Enhanced Boolean-based multi secret image sharing scheme. - Ching-Nung Yang; Cheng-Hua Chen; Song-Ruei Cai (J. Syst. Softw., 2016)

Extended color visual cryptography for black and white secret image. - Ching-Nung Yang; Li-Zhe Sun; Song-Ruei Cai (Theor. Comput. Sci., 2016)

Boolean Operation Based Visual Cryptography. - Zhili Zhou 001; Ching-Nung Yang; Song-Ruei Cai; Daoshun Wang (IEEE Access, 2019)