Fig. 1. Quantization error of SLM and modulation deviation of LUT. (a) Pixel discrete structure of the DMD panel; (b) modulation deviation of the designed LUT and the measured LUT of LCoS

Fig. 2. Holographic recording and holographic reconstruction

Fig. 3. Holographic reconstruction of continuous complex-amplitude CGH. (a) Holographic reconstruction result of the target object; (b) intensity distribution curves of original target object and its reconstruction result

Fig. 4. Relationship between PSNR and resolution when a complex CGH with 8-bit amplitude or phase is used

Fig. 5. Influence of zero-padding operation on holographic reconstruction results. (a) Schematic of zero-padding operation; (b) relationship between PSNR of holographic reconstruction and zero-padding resolution when a complex CGH with 8-bit phase is used

Fig. 6. Quality analysis of holographic reconstructions. (a) Variation trend of PSNR of reconstructed hologram with phase quantization value; (b) variation trend of PSNR of reconstructed hologram with maximum phase modulation; (c) reconstruction result with a phase modulation range of [0, π]; (d) reconstruction result with a phase modulation range of [0, 3π]

Fig. 7. Holographic reconstructions. (a) Holographic reconstruction results of phase-only CGH; (b) holographic reconstruction results of double- phase CGH

Fig. 8. Contour map of PSNR during quantization of amplitude and phase in complex-amplitude CGH