本文提出了一种利用三维景物的二维视角投影图像合成计算全息图，并重构出彩色再现三维影像的方法.该方法基于利用视角投影图像获取景物的三维傅里叶频谱的理论，采用电荷耦合器件记录三维景物在白光照明条件下横、纵两正交方向的一系列视角投影图像，并利用这些视角投影图像合成计算全息图，从而重构出三维再现像.通过采用在频谱面上的容余采样方法，提高了图像频谱信息的利用率，通过实验论证，证明了该方法的可行性.利用该方法使得视角投影图像的记录过程更加简单，节省了采样时间，提高了程序运行速度；能够在利用同等数量的视角投影图像的条件下，提高合成全息图的质量，使得重构的彩色再现三维影像更加清晰.

A novel method for the acquisition of full-color three dimensional (3-D) images of real objects was proposed based on multiple projections. In order to improve sampling efficiency, an orthogonal scanning mode was presented, instead of conventional 2-D scanning mode, to capture a series of projection images by a color charge coupled device in both vertically and horizontally direction with an incoherent light source. The 3-D Fourier spectra were extracted by using the projection images. The computer-generated hologram (CGH) was synthesized and the numerical 3-D image was reconstructed. The experimental results show that the acquisition method of multiple projection view images has good performance, high efficiency. Moreover, a new extraction method was adopted to improve viewing quality of 3-D imaging by using the multi-circle sampling area. Comparison with experimental result shows that more available data is used to synthesize the CGH and a significant improvement in image definition.