3D revolution: new holographic technique breaks computational barriers
April 16, 2024
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The revolutionary approach uses a diffraction pattern based on Lohmann split lenses to create computer-generated holography (CGH) in real time; This significantly reduces computational requirements while preserving the
The revolutionary approach uses a diffraction pattern based on Lohmann split lenses to create computer-generated holography (CGH) in real time; This significantly reduces computational requirements while preserving the quality of 3D visualizations.
Holographic displays represent an exciting way to create realistic 3D images that create the illusion of constant depth, promising a transformative impact in fields such as entertainment, medical imaging and virtual reality. However, traditional approaches to creating computational holograms (CGH) are complicated by the need for repeated calculations; this leads to high computational requirements and makes them unsuitable for real-time applications.
To solve this problem, researchers from Shanghai University of Science and Technology (China) presented a new CGH fabrication method that significantly reduces the computational cost while maintaining the high quality of 3D imaging. As reported Advanced Photonics bondingTheir approach uses a diffraction model based on Lohmann split lenses, which allows the rapid synthesis of 3D holograms using a one-step backpropagation calculation.
Using specially designed virtual digital phase modulation in the Lohmann split lens, their method enables high-precision reconstruction of 3D scenes with accurate depth perception.
The full-color holographic display near the eyes uses an eyepiece lens to magnify 3D images, which are then recorded by adjusting the focus of the camera lens. A fast hologram is then created using a diffraction algorithm based on Split-Lohmann lenses.
The revolutionary creation of holographic displays
The significance of this research is that it has the potential to revolutionize the creation of holographic images by providing a practical solution for real-time CGH generation. Unlike traditional methods that suffer from computational bottlenecks, the proposed approach provides a constant computational speed regardless of the depth of sampling density, enabling seamless integration into various applications requiring immersive 3D visualization.
To verify the effectiveness of their method, the researchers conducted simulations and experiments, demonstrating the method’s ability to create realistic 3D holographic images with accurate depth perception.
Overall, the research represents a promising advance in the field of computer holography and offers a practical solution for creating immersive 3D visualizations without the computational limitations of traditional methods. This helps pave the way for widespread adoption of holographic displays across various industries and applications.
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