Light field imaging device and parameter determination method thereof
A light field imaging and imaging technology, applied in optics, image communication, television, etc., can solve problems such as complex manufacturing process, unfavorable high-resolution imaging, clear imaging, etc., to achieve increased dynamic range, wide application prospects, and dynamic range big effect
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[0056] like figure 1 , figure 2 , image 3 and Figure 4 As shown, the light field imaging device of this embodiment includes an imaging main lens 1, a microlens array 2, and a photosensitive CCD 3 for imaging information collection arranged in parallel in sequence. The microlens array 2 includes a plurality of microlenses arranged on the same plane, and the microlens array 2 is divided into multiple imaging acquisition sub-areas for acquiring light field information in different depth ranges, and the entrance pupil surface side of the main imaging lens 1 is closely connected with orthogonal The defocusing grating 4, the orthogonal defocusing grating 4 includes two Fresnel zone plates arranged in parallel, the Fresnel zone plates are off-axis (the zone center of the Fresnel zone plate does not coincide with the geometric center) The amplitude type Fresnel zone plate or the phase type Fresnel zone plate. see Figure 4 , the orthogonal defocus grating 4 of this embodiment ...
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