Image encryption and Identification for security verification = 신원보증을 위한 영상 암호화와 신분증명

다국어 초록 (Multilingual Abstract)

A new image encoding and identification scheme is proposed for security verification by using a CGH (computer generated hologram), random phase mask, and correlation technique. The encrypted image. which is attached to the security product, is made by multiplying QP-CGH(quadratic phase CGH) with a random phase function. The random phase function plays a key role when the encrypted image is decrypted. The encrypted image can be optically recovered by a 2-f imaging system and automatically verified for personal identification by a 4-f correlation system. Simulation results show the proposed method can be used for both the reconstruction of an original image and the recognition of an encrypted image.

목차 (Table of Contents)

• Abstract = 147
• Ⅰ. Introduction = 147
• Ⅱ. Encoding Method = 148
• Ⅲ. Optical Method for Decoding & Identification = 149
• Ⅳ. Computer Simulations = 151
• Ⅴ. Conclusion = 151
• <요약> = 152
• = 152