厦门理工学院学报
廈門理工學院學報
하문리공학원학보
JOURNAL OF XIAMEN UNIVERSITY OF TECHNOLOGY
2011年
4期
14-17
,共4页
计算全息%彩虹全息%视差%体视图
計算全息%綵虹全息%視差%體視圖
계산전식%채홍전식%시차%체시도
computer-generated hologram%rainbow hologram%parallax stereogram
在计算机制全息技术和光学全息技术的基础上,研究用计算机一光学方法联合制作体视全息三维立体显示技术.根据人眼立体视觉原理获取三维物体带有视差信息的体视图,通过计算机计算得到计算全息图H1;将H1严格对位,用激光再现获得带有视差信息的再现像,并以此再现像为对象,用光学全息的方法拍摄彩虹全息图H2;用白光再现H2,通过双眼综合出三维立体图像.在全息图的计算过程中,采用快速傅里叶变换算法提高了计算速度,将计算全息与光学全息相结合,发挥了各自的优势.
在計算機製全息技術和光學全息技術的基礎上,研究用計算機一光學方法聯閤製作體視全息三維立體顯示技術.根據人眼立體視覺原理穫取三維物體帶有視差信息的體視圖,通過計算機計算得到計算全息圖H1;將H1嚴格對位,用激光再現穫得帶有視差信息的再現像,併以此再現像為對象,用光學全息的方法拍攝綵虹全息圖H2;用白光再現H2,通過雙眼綜閤齣三維立體圖像.在全息圖的計算過程中,採用快速傅裏葉變換算法提高瞭計算速度,將計算全息與光學全息相結閤,髮揮瞭各自的優勢.
재계산궤제전식기술화광학전식기술적기출상,연구용계산궤일광학방법연합제작체시전식삼유입체현시기술.근거인안입체시각원리획취삼유물체대유시차신식적체시도,통과계산궤계산득도계산전식도H1;장H1엄격대위,용격광재현획득대유시차신식적재현상,병이차재현상위대상,용광학전식적방법박섭채홍전식도H2;용백광재현H2,통과쌍안종합출삼유입체도상.재전식도적계산과정중,채용쾌속부리협변환산법제고료계산속도,장계산전식여광학전식상결합,발휘료각자적우세.
Based on computer-generated holography and optical holography, a new three-dimensional stereoscopic display technique combining computer-generated hologram (CGH) and optical hologram is proposed. Firstly, a pair of stereogram with parallax is obtained using camera, and two computer-generated holograms(H1) is created from the stereogram. Then, re-illuminating H1, a pair of images with parallax is acquired, and the rainbow hologram(H2) is recorded when interfering with reference beam. FinaUy, a three- dimensional reconstruction is synthesized through H2 under natural light. This method utilizes the advantages of CGH and optical hologram, and Fast-Fourier-transform is introduced to speed up the calculation of CGH.