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Phase-only holographic projection has driven a great deal of research and has often been seen as a desirable method of 2-D image formation. It is superior to conventional imaging projection technology. a real-time 2-D video projection system is developed here using this system. The computational
complexity of calculating diffraction patterns has been the major hindering force for this. The poor quality of the resultant images was also a factor. This paper shows a a new pproach to hologram generation and display. Thus a
high-quality real-ti ....etc

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Powered by digital electronics, this optical solution facilitates the entire digital connection between a graphic or video source and the screen, in movie video projectors, televisions, home theatre systems and business video projectors. Digital Micro mirror Device or DLP® chip which is a rectangular array of up to 2 million hinge- mounted microscopic mirrors (each of these micro mirrors measures less than one-fifth the width of a human hair) controls the light in optical semiconductor of the DLP projection system.

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ABSTRACT
Optical three-dimensional non-contact profilometry has been widely used for 3-D sensing, machine vision, robot simulation, industrial monitoring, biomedicine etc. Several 3D object profilometry methods including phase stepping profilometry (PSP), Fourier transform profilometry (FTP), modulation measurement profilometry (MMP) and spatial phase detection (SPD), have been exhaustively studied. Measurement of shape through any one of these fringe projection techniques involves- (1) projecting a sinusoidal fringe ....etc

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JECTION and TYPES OF PROJECTION

BARNANA BARUAH
ROLL NO.:- 07-197



PROJECTION

Projection is a process of converting the object in
n-dimensional system to n-1 dimensions.

Once world coordinate descriptions of the objects are converted to viewing coordinates, we can project the three-dimensional objects onto the two-dimensional view plane.




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DLP Projector

Powered by digital electronics, this optical solution facilitates the entire digital connection between a graphic or video source and the screen, in movie video projectors, televisions, home theatre systems and business video projectors. Digital Micro mirror Device or DLP® chip which is a rectangular array of up to 2 million hinge- mounted microscopic mirrors (each of these micro mirrors measures less than one-fifth the width of a human hair) controls the light in optical semiconductor of the DLP projection s ....etc

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INTRODUCTION
If you're thinking about assembling a home theatre system, you may be looking at large screen televisions as the heart of your system. Projection TV could give you the size that you want -- CRT screens generally top out at 40 (101 cm) or so, and at that size, they are huge and heavy. Plasma screens can be bigger than that and still manageable, but they can be extremely expensive. Projection TV technology can create large screen sizes at a reasonable price. Or maybe you need to equip a room, like ....etc

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