Optimal key mask design for optical encryption based on joint transform correlator architecture

Asymmetric-image verification for securi

Asymmetric-image verification for security optical systems based on joint transform correlator architecture

✍ Hsuan T. Chang; Ching T. Chen 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 884 KB

In this paper, an optical asymmetric-image verification system based on the joint transform correlator architecture is proposed. An additional phase mask is attached to the spatial light modulator that displays the joint power spectrum as the amplitude information, to improve the system security and