The following publications are possibly variants of this publication:
- Friendly Color Visual Secret Sharing by Random GridsTzung-Her Chen, Kai-Hsiang Tsao, Yan-Ting Yang. FUIN, 96(1-2):61-70, 2009. [doi]
- User-Friendly Random-Grid-Based Visual Secret SharingTzung-Her Chen, Kai-Hsiang Tsao. tcsv, 21(11):1693-1703, 2011. [doi]
- Yet Another Friendly Progressive Visual Secret Sharing SchemeTzung-Her Chen, Yao-Sheng Lee. iih-msp 2009: 353-356 [doi]
- Quality-adaptive visual secret sharing by random gridsTzung-Her Chen, Yao-Sheng Lee, Wei-Lun Huang, Justie Su-tzu Juan, Ying-Yu Chen, Ming-Jheng Li. jss, 86(5):1267-1274, 2013. [doi]