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Introduction to computational holography

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This blog will feature a research and study of computational holography in 3D Imaging and its applications... 

So basically what a 3D holography is-
It can be called as 3 dimensional projection that freely exist in space unlike 3D Television or Virtual Reality which require 3D glasses,Holography is visible to every human being or a robotic machine that can visually recognize 3 dimensional objects without using 3D glasses.So to bring this holographic image to life we need a 3D display  or a holographic projector.

 Hence Holography can be called as next stage of photography whose feature of 3 dimensionality creates completely new possibility for use,such as product presentation ,pre-manufacture prototyping ,simulations etc.Unlike conventional film on a standard display ,a 3D hologram is visible from all the sides enabling an absolute realistic looking image experience as shown below

Projection 1
Image Source:-https://www.inavateonthenet.net/features/article/the-holograms-revolutionising-videoconferencing

So how are the hologram projectors..
In hologram display which is illuminated by a laser ,each pixel of the display sends out light waves.
Then the phase of light waves is modulated by driving the display.Changing the phase basically is defined as delay of light from one pixel to other pixels. 



Thank you,
By:-Siddhesh Ramajgol

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