Fig. 1. Schematic of DRUMS photography. (a) Schematic of the system. (b) Schematic of the DMD micromirror array, regarded as the combination of two rectangular grids of pitch $p$ highlighted by the yellow and gray colors. The inset illustrates the flipping action of the DMD micromirrors during pattern transition, with the hinge axis oriented parallel to the $y^{\prime }$-axis.

Fig. 2. Simulation of DRUMS photography. (a) Five representative frames of the ground truth dynamic scene. (b) Close-up phase profiles of the simulated DMD during mirror flipping, corresponding to the frames shown in (a). (c) 2D Fourier spectrum of Frame 7 with the portion of spatial frequencies blocked by the knife-edge filter shown by the green-dash-filled rectangle. (d) Simulated frames recorded by DRUMS photography corresponding to the frames and phase profiles shown, respectively, in (a) and (b). (e)–(f) Line profiles [shown by the light blue horizontal lines in (d)] of DRUMS photography (light blue solid line) and the ground truth (black dashed line) in Frame 1 (e) and Frame 10 (f).

Fig. 3. Characterization of the performance of DRUMS photography. (a) DRUM photography of the USAF 1951 resolution target under continuous-wave illumination. (b) DRUMS photography corresponding to the resolution target in (a). Close-up views show the details of Group 6 Element 2. (c) Comparison of line profiles of Group 4 Element 1 [shown by the light blue line in (b)] between DRUM photography (black dashed line) and DRUMS photography (blue solid light line). (d) DRUM photography of a fracture in a glass microscope slide under continuous-wave illumination modulated with a 50% duty cycle square wave at 2.5 Hz. (e) DRUMS photography corresponding to the scene in (d). (f) Time history of the normalized light intensity of the local region marked by a light blue rectangle in (e).

Fig. 4. DRUMS photography of laser-induced breakdown in distilled water. (a) Schematic of the experimental setup. (b) Selected DRUMS photography frames showing the evolution of the laser-induced plasma channel in distilled water using a 7 µJ pump pulse. (c) Time history of the channel length.