Abstract
Light field reconstruction from images captured by focal plane sweeping, such as light field moment imaging~(LFMI) and light field reconstruction with back projection~(LFBP), can achieve high transverse resolution comparable to the modern camera sensor. This is impossible for the conventional microlens-array-based light field imaging systems. However, the acquisition of a series of focal plane sweeping images along the optical axis is time consuming and requires fine alignment. Besides, different focal plane based light field reconstruction techniques require images with different characteristics. To solve these problems, we present an efficient approach for fast light field acquisition with precise focal plane sweeping capture by defocus modulation rather than mechanical movement. Because of the controllable point spread function, we can capture images for light field reconstruction with both LFMI and LFBP
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