Papers for

optical engineers

Papers whose findings have a practical use for this group, as judged from the abstract. Open a paper to read what it means in practice.

Hologram quality improved by new wavefront shaped gaussian method

Hologram Representation via Quadratic Phase Gaussian Splatting

Abstract: We introduce Complex-Valued Quadratic Phase Gaussian (CVQPG), a novel hologram representation method that replaces standard 2D Gaussian representations used in 2D Gaussian Splatting with 2D quadratic phase functions. CVQPG incorporates additional learnable parameters to control the curvature of these bases. We evaluate our approach against state-of-the-art methods, exceeding the visual quality by +0.19 dB (RGB) and +0.33 dB (grayscale) on average in holographic reconstructions. Specifically, our equal parameter count evaluations show that modulating the primitive's wavefront is an effective and lightweight enhancement for hologram representations. In addition, our frequency domain analysis illustrates that CVQPG has successfully preserved the mid-to-high frequency band of natural images.

Thu 10 SeptGraphicsComputer Vision and Pattern RecognitionMachine Learning

The gist

Holograms create 3D-like images by manipulating light, but making them clear and detailed is tricky. The authors developed a new way to represent holograms using special curved waves instead of flat ones, which helps keep more fine details in the image. This method, called CVQPG, improves how holograms look compared to older ways that only used flat wave shapes. Their tests show sharper and more natural hologram images while keeping the number of parameters the same. This technique keeps the middle and high image details better, which is important for clearer holography.

Open → 2609.11434v1