Improvement of the image quality of random phase--free holography using an iterative method
This work addresses image quality issues in holography for applications like displays or imaging, but it appears incremental as it builds on existing random phase-free methods.
The paper tackled the problem of degraded image quality in low-resolution holograms for random phase-free holography, proposing an iterative method with virtual convergence light to improve it.
Our proposed method of random phase-free holography using virtual convergence light can obtain large reconstructed images exceeding the size of the hologram, without the assistance of random phase. The reconstructed images have low-speckle noise in the amplitude and phase-only holograms (kinoforms); however, in low-resolution holograms, we obtain a degraded image quality compared to the original image. We propose an iterative random phase-free method with virtual convergence light to address this problem.