https://www.naukri.com/code360/library/difference-between-raster-scan-and-random-scan
This article will explain these methods, highlight their differences, and help you understand when to use each one.
raster scandifferencerandomnaukricode
https://www.osti.gov/biblio/597140
The viewers` perception of laser speckle in a laser-scanned image projection system is modified or eliminated by the addition of an optical deflection system...
raster scanimage projectionspeckleaveragingsystem