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Three- dimensional spline-based computer-generated holography
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DOI：10.1364/OE.480095.png)
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摘要
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Electro-holography is a promising 3D display technology, as it can, in principle, account for all visual cues. Computing the interference patterns to drive them is highly calculationintensive, requiring the design and development of efficient computer-generated holography (CGH) algorithms to facilitate real-time display. In this work, we propose a new algorithm for computing the CGH for arbitrary 3D curves using splines, as opposed to previous solutions, which could only draw planar curves. The solutions are analytically expressed; we conceived an efficiently computable approximation suitable for GPU implementations. We report over 55-fold speedups over the reference point-wise algorithm, resulting in real-time 4K holographic video generation of complex 3D curved objects. The proposed algorithm is validated numerically and optically on a holographic display setup.
Keyword:
LINE-DRAWN OBJECTS
PHASE RETRIEVAL
COMPUTATION
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
机构
引用论文
Ultrafast layer based computer-generated hologram calculation with sparse template holographic fringe pattern for 3-D object.png)
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