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.