Fig. 1: Schematic of SPI-ASAP. | Nature Communications

Fig. 1: Schematic of SPI-ASAP.

From: Compressed ultrahigh-speed single-pixel imaging by swept aggregate patterns

Fig. 1

a System illustration showing beam scanning of a DMD-displayed aggregate pattern by rotation of a polygonal mirror. White arrows indicate directions of polygonal mirror rotation and illumination scanning. CL, condenser lens; DMD, digital micromirror device; L1-L6, lenses; M1-M3, mirrors; PD, photodiode. b Closeup of an example aggregate pattern in a sequence suitable for imaging at a frame size of 41×43 pixels. Red box: a representative encoding pattern. Red arrow: scanning direction.

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