Recently, integral imaging in various applications has been studied on computerized analyzing techniques for reconstruction of the three-dimensional objects and display system design. However, conventional reconstruction technique based on computational integral imaging have some limitations in analyzing information of reconstruction and designing practical display systems. Because it has primarily been used to analyzing technique based on image processing through virtual pinhole and simple geometry excluded realistic optical properties. In this paper, we proposed the novel reconstruction technique using the micro-lens array designed and ray tracing including realistic environments and optical components in practical integral imaging system. As a theoretical background, the principle of the proposed method is described. To analyze the reconstruction system model, rays are traced by using the LightTools software. As a result, a 3-D image reconstructed by integrated rays in designed model is illustrated and some experimental results and system analysis are also presented as well.© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.