9 February 2012 Image-type high-definition CGHs encoded by optimized error diffusion
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Abstract
Image-type binary CGHs, fabricated by a laser lithography system, commonly lost the object shading and texture. This is caused by the binary amplitude fringe that is unable to reconstruct object brightness because amplitude information of the object field is removed by binarization if the object is too close to the hologram. In this paper, optimized error diffusion is applied to encoding binary-amplitude image-type CGHs in order to improve reconstruction of surface shading and texture. An actual image-type high-definition CGHs is created by the proposed technique and demonstrated to verify that the CGHs can be reconstructed by white light source without much chromatic aberration.
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Hiroshi Yamashita, Kyoji Matsushima, Sumio Nakahara, "Image-type high-definition CGHs encoded by optimized error diffusion", Proc. SPIE 8281, Practical Holography XXVI: Materials and Applications, 82810Z (9 February 2012); doi: 10.1117/12.908353; https://doi.org/10.1117/12.908353
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