Second , some algorithms of elimination of the conjugate image and the zero - order image are introduced and summarized . at the end of this chapter , the experimental setup of in - line phase - shifting digital holography is described . chapter3 : digital holographic recording and numerically reconstructing process is interpreted as a coherent optical imaging system 第二章論述了同軸相移數(shù)字全息基本原理,總結(jié)和介紹了消除零級(jí)像和共軛像的幾種相移算法,并較為詳細(xì)地介紹了同軸相移數(shù)字全息的實(shí)驗(yàn)裝置。