Optical encryption of multiple three-dimensional objects based on multiple interferences and single-pixel digital holography

Wang Ying, Liu Qi, Wang Jun^†, Wang Qiong-Hua

(a1) Incorrect sensing matrix Φ ; (a2) decrypted image of OBJ1-1 with (a1); (a3) decrypted image of OBJ1-2 with (a1); (b1) incorrect key 1-1; (a2) decrypted image of OBJ1-1 with (b1); (b3) decrypted image of OBJ1-2 with (b1); (c1) incorrect key 2-1; (c2) decrypted image of OBJ1-1 with (c1); (a3) decrypted image of OBJ1-2 with (c1).