根据光场成像原理,对非聚焦型光场相机和聚焦型光场相机的成像原理和采样模式进行了分析,对比了两种光场成像系统的成像特点。针对不同类型光场相机的信息采样特点,推导了非聚焦型光场相机空域平移叠加重聚焦算法及聚焦型光场相机基础图像重构算法,并在MATLAB中对两种图像重聚焦算法进行了仿真验证,实验证明两种算法都可以有效获得任一景深清晰的像,可为光场成像技术的应用提供借鉴。

The detailed analyses has been done on the unfocused plenoptic camera and the focused plenoptic camera respectively,based on the imaging principle and the sampling modes.The characteristics of these two different light field imaging systems are compared.The spatial domain shift-and-add rendering algorithm of the unfocused plenoptic camera and the basic rendering algorithm of the focused plenoptic have been deduced according to their sampling mode.Then the algorithms are simulated by the software MATLAB.The effectiveness of the two rendering algorithms has been verified that capture the clear image at depths.This research could serve as reference for the application of the light field imaging.