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Human speckle perception threshold for still images from a laser projection system
Tijdschriftbijdrage - Tijdschriftartikel
We study the perception of speckle by human observers in a laser projector based on a 40 persons survey. The speckle contrast is first objectively measured making use of a well-defined speckle measurement method. We statistically analyse the results of the user quality scores, revealing that the speckle perception is not only influenced by the speckle contrast settings of the projector, but it is also strongly influenced by the type of image shown. Based on the survey, we derive a speckle contrast threshold for which speckle can be seen, and separately we investigate a speckle disturbance limit that is tolerated by the majority of test persons. (C) 2014 Optical Society of America
Tijdschrift: Opt. Express
ISSN: 1094-4087
Issue: 20
Volume: 22
Pagina's: 23965-23979
Jaar van publicatie:2014
Trefwoorden:REDUCTION
CSS-citation score:2