In synthetic aperture integral imaging system (SAII), a camera array, replacing lenslet array, is employed to obtain highresolution elemental images with multiple perspective. However, the SAII system still suffer from the limitation of depth of field (DoF). In this paper, we present a multi-focus elemental image fusion method by using NSCT to solve limitation of DoF problem. In proposed method, the depth estimation are achieved to register elemental images. Then, a fusion method based on non sub-sampled contourlet transform (NSCT) is employed to obtain full-focus elemental images. Finally, the resolution enhanced 3D images are reconstructed by using the full-focus elemental images. To show the feasibility of the proposed method, the preliminary experiments are carried out.
In synthetic aperture integral imaging system, a camera array is employed to obtain multiple perspective images from a 3D scene. However, the imaging lens suffer from the limitation of depth of field which disallows a conventional integral imaging system to obtain full-focus elemental images. To solve this problem, we present a multi-focus elemental images fusion method to reconstruct resolution enhanced 3D integral images. In the proposed method, depth estimation and image registration are achieved to fuse full-focus elemental images. Then, the resolution enhanced 3D images are reconstructed by using full-focus elemental images. To verify feasibility of the proposed method, the preliminary experiments are carried out.
Proc. SPIE. 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016
KEYWORDS: 3D image reconstruction, Imaging systems, Image processing, 3D modeling, Image quality, Ray tracing, Reconstruction algorithms, Scanning probe microscopy, Integral imaging, 3D image processing
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