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Article | REF: TE5375 V1

Ultra-High Definition images and television (UHD)

Authors: Marc LÉGER, Christophe NELSON, Jean-Noël GOUYET

Publication date: December 10, 2019

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3. Production

3.1 UHD cameras and optics

While UHD cameras are now available for all purposes and in all qualities, it's important to bear in mind that the quality of the optics plays a major role in the final image. Increasing sensor resolution (number of pixels/sensor size) will impose constraints on the definition of the optics used.

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3.1.1 Modulation transfer function

To measure the definition of a lens, we use the Modulation Transfer Function (MTF). This curve measures the percentage loss of contrast...

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