Proposal for Practical Screen Luminance Uniformity Measurement
The traditional way to measure screen uniformity in Cinema is by pointing manually a measuring device at a few locations on the screen. This method is subject to operational errors and not foolproof. — As an increased quality control is required by Digital Cinema a better method is needed. It is also worth noting that luminance variations are also affecting color measurements. — Large screen projection is always subject to vignetting. A set of practical vignetting models is proposed to help define a typical vignetting effect for cinema projection. — From these models one can devise a method and apparatus that may give practical luminance uniformity measurements. A proposal for specifications with tolerances is given.
- Published
- 2009-10
- Content type
- Original Research
- DOI
- 10.5594/M001309
- ISBN
- 978-1-61482-943-0
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