摘要
本文提出两种图象信息的加密存储方法。通过π位相调制和参光角度编码两种方式对图象进行编码,以全息干涉方式读出信息。没有解码,其它任何人无法读出信息。文章中的方法有着广泛的应用前景。
Two cryptographic methods for storage of graphic information are proposed in this paper.Thegraphic information is encoded by π-phase modulation and the reference beam's angle modulation.The informationis read out by means of holographic interference. Without decode card,anyone else can't read out the informationstored in the informational card.There is a brighter promise for its application.
出处
《激光杂志》
CAS
CSCD
北大核心
1996年第2期58-61,共4页
Laser Journal
关键词
加密存储
全息干涉
π位相调制
角度编码
cryptographic storage,holographic interference,wphase mudulation,angular coding