Composing mosaic holograms

Paula H. Dawson

doi:10.1117/12.537952

29 June 2004 Composing mosaic holograms

Paula H. Dawson

Proceedings Volume 5290, Practical Holography XVIII: Materials and Applications; (2004) https://doi.org/10.1117/12.537952
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

The division of a picture surface into discrete units makes it possible to structure an image in a unique way. Holographic imaging processes which employ computer graphics as subject matter frequently employ sequential exposures to small sections of the hologram plate or film. The making of complete holograms from hundreds of small slices or squares has been refined in recent years to enable millions of 1mm hologram pixels to be successfully exposed to make one visually continuous three-dimensional scene. These techniques of making one hologram through the exposure of thousands of discrete image elements enables the subject and its lighting to be shaped and changed very subtlety over every tiny picture unit. In some ways the small holographic pixels of fringe digital holograms are similar to the glass and gilded tesserae of early mosaic art works. This paper compares the different compositional possibilities between early glass and gold mosaics, optically formed fringe digital holograms and my optical and recent tesserae holograms. This recent use of small hologram fragments with gilding and silvering is set against the context of the interrelationship of artistic pictorial style and the technical evolution of holographic image making.

Citation Download Citation

Paula H. Dawson "Composing mosaic holograms", Proc. SPIE 5290, Practical Holography XVIII: Materials and Applications, (29 June 2004); https://doi.org/10.1117/12.537952

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KEYWORDS

Holograms

Holography

Light sources and illumination

Digital holography

Reflection

Computer graphics

Glasses

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