Fig. 1. Complex amplitude imaging with interferometric and non-interferometric approaches

Fig. 2. The 16 Hadamard matrices for imaging pixels 4 × 4 and the schematic of single-pixel imaging with Hadamard patterns

Fig. 3. Diagrams of single-pixel imaging via compressive sampling and the reconstructed images^[36]

Fig. 4. Experimental verification of the complex-amplitude single-pixel imaging based on the principle of Shack-Hartmann wavefront sensor^[70]

Fig. 5. Complex-amplitude single-pixel imaging based on two-arm interferometer^[72]

Fig. 6. Complex-amplitude single-pixel imaging based on one-arm interferometer

Fig. 7. Measuring the complex spectrum of LG superposition states and the local resolution enhanced imaging based on single-pixel imaging technique

Fig. 8. Common path single-pixel complex amplitude imaging scheme using single-mode fiber^[93-94]

Fig. 9. The reconstructed complex amplitude images, and the schematic diagram of single-pixel compressive diffractive imaging^[77]