Yet Another Friendly Progressive Visual Secret Sharing Scheme. - Tzung-Her Chen; Yao-Sheng Lee (IIH-MSP, 2009)

High-Capacity Multi-secret Sharing by Random Grid. - Tzung-Her Chen; Yao-Sheng Lee; Ci-Lin Li (BWCCA, 2010)

Yet another multiple-image encryption by rotating random grids. - Tzung-Her Chen; Kai-Hsiang Tsao; Yao-Sheng Lee (Signal Process., 2012)

Insight into collusion attacks in random-grid-based visual secret sharing. - Yao-Sheng Lee; Tzung-Her Chen (Signal Process., 2012)

A random grid-based cyclic access structure VSS scheme for multiple secret images. - Tzung-Her Chen; Bing-Jian Wang; Yao-Sheng Lee (Displays, 2013)

Quality-improved threshold visual secret sharing scheme by random grids. - Yao-Sheng Lee; Bing-Jian Wang; Tzung-Her Chen (IET Image Process., 2013)

Quality-adaptive visual secret sharing by random grids. - Tzung-Her Chen; Yao-Sheng Lee; Wei-Lun Huang; Justie Su-tzu Juan; Ying-Yu Chen; Ming-Jheng Li (J. Syst. Softw., 2013)

Visual multiple-secret sharing for flexible general access structure by random grids. - Kai-Hsiang Tsao; Shyong Jian Shyu; Chih-Hung Lin; Yao-Sheng Lee; Tzung-Her Chen (Displays, 2015)

Friendly progressive random-grid-based visual secret sharing with adaptive contrast. - Chih-Hung Lin; Yao-Sheng Lee; Tzung-Her Chen (J. Vis. Commun. Image Represent., 2015)

On the difficulty of aligning VSS random grids. - Tzung-Her Chen; Yao-Sheng Lee; Chih-Hung Lin (Signal Process. Image Commun., 2016)