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Go Kanno

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Proceedings Article | 27 February 2006 Paper

Holographic stereogram using graphic accelerator

Go Kanno, Yuji Sakamoto

Proceedings Volume 6136, 61360U (2006) https://doi.org/10.1117/12.645704

KEYWORDS: Holography, Visualization, Stereo holograms, Holograms, Image processing, Raster graphics, Data modeling, 3D image processing, 3D displays, Ray tracing

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A holographic stereogram is one of methods for displaying 3-D image data from multiple-view images. In this paper, we propose a method for computing holographic stereogram using graphic accelerator. We use graphic accelerator at two stages of method. One is creating Multiple-view images, and another is synthesizing holographic stereogram. To create and rasterize multiple-view images, we use CG rendered from the point of view on the projection plain of hologram. This CG makes effect like ray tracing. In rendering, we use vertex-transforming rebuiled by VertexShader for the negative parallax. This vertex transforming makes negative near clipping possible. And To Synthesize holographic stereogram, we use texture mapping feature of graphic accelerator. This method befits raster output device, because this method output raster data sequentially. And this method befits also PC, because this method doesn't need memory that buffers all multiple-view images, needs processing power for rendering and sampling and synthesizing for each unit of projection plain.

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