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2-D Holograms Make 3-D Color Display

Researchers from Seoul National University have developed a three-dimensional color display that uses a set of six holograms and is made from relatively compact and inexpensive components. The three-dimensional displays could eventually be used to... More...

3D holograms to crack forgeries

Forged documents could be signed off for good with a new technique that produces a 3D hologram of handwriting. Through virtual reality and image processing, tiny pressure bumps in writing can be analysed to spot... More...

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