We proposed a fast scheme for computer-generated holography (CGH) to mix 3D scenes. The objects in the proposed include the real and virtual objects. Make a point cloud model of real object, and then converted to a triangular mesh model. And mix the triangular mesh model with virtual 3D object mesh models. Using the angular spectrum method to generated hologram, and it is convenient to accelerating with GPU.
In the transformation based compression algorithms of digital hologram for three-dimensional object, the balance
between compression ratio and normalized root mean square (NRMS) error is always the core of algorithm development.
The wavelet transform method is efficient to achieve high compression ratio but NRMS error is also high. In order to
solve this issue, we propose a hologram compression method using Wavelet-Bandelets transform. Our simulation and
experimental results show that the Wavelet-Bandelets method has a higher compression ratio than Wavelet methods and
all the other methods investigated in this paper, while it still maintains low NRMS error.
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