Table 2.

Optical system, lighting and speckled pattern employed during AM variants.

AM Variant	Optical System	Lighting System	DIC Software	Speckled Pattern	References
SLM	Two 5-Mpx CCD cameras 35 mm compact lenses (sterovision angle of 20${}^{\circ }$)	LED	Vic-3D	Natural pattern	[2,72]
LMD	Two CMOS cameras	DILAS Compact diode laser	GOM Aramis 3D DIC	Painted stochastic pattern	[73,74,75]
DMD	Two CCD cameras	LED	GOM Aramis 3D DIC	Painted pattern	[79]
FFF/FDM	Two 5-Mpx CCD cameras 50 mm compact lenses	LED	Vic-3D	Natural pattern (using ColorFabb Woodfill Fine filament)	[71]
LENS	CMOS HS-UX50 160K camera coupled with a standard Nikon Nikkor 60	Fixed light source	Vic-2D	Natural pattern	[76,78]