High resolution integral imaging display by using a microstructure array

Zhang, Yukun; Fu, Yuqing; Wang, Huai-Qian; Li, Huifang; Pan, Shuwan; Du, Yongzhao

doi:10.1364/jot.86.000100

Cited by 16 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the hologram is reconstructed, the beamlets in these directions are diffracted from the hologram. Similar to integral imaging 3D displays, the overlapping regions of the different beamlets form a 3D object for 3D display [22,23], where the propagation direction of the beamlets determines the outcome of the 3D display. To simplify calculation, the projection layers are all assumed to coincide in the same plane.…”

Section: Methodsmentioning

confidence: 99%

A Fast Computer-Generated Holographic Method for VR and AR Near-Eye 3D Display

2019

View full text Add to dashboard Cite

A fast computer-generated holographic method with multiple projection images for a near-eye VR (Virtual Reality) and AR (Augmented Reality) 3D display is proposed. A 3D object located near the holographic plane is projected onto a projection plane to obtain a plurality of projected images with different angles. The hologram is calculated by superposition of projected images convolution with corresponding point spread functions (PSF). Holographic 3D display systems with LED as illumination, 4f optical filtering system and lens as eyepiece for near-eye VR display and holographic optical element (HOE) as combiner for near-eye AR display are designed and developed. The results show that the proposed calculation method is about 38 times faster than the conventional point cloud method and the display system is compact and flexible enough to produce speckle noise-free high-quality VR and AR 3D images with efficient focus and defocus capabilities.

show abstract

Section: Methodsmentioning

confidence: 99%

A Fast Computer-Generated Holographic Method for VR and AR Near-Eye 3D Display

2019

View full text Add to dashboard Cite

show abstract

“…Taking Reference [19] as an example, each rectangular tile is calculated by using the 3D object data within the field of view (FOV) of this tile using the point cloud-based method. A full-parallax hologram with a resolution of 20,000 × 20,000 can take up to 32.9 h. Another rectangular tiling-based algorithm is integral holography, which is the combination of integral imaging 3D displays and holography [21][22][23][24]. In this method, each element of the light field image (EI) rendered from a micro-lens array or pinhole array is firstly fast Fourier transformed (FFT) as the complex amplitude of each elemental hologram, also called a hogel.…”

Section: Introductionmentioning

confidence: 99%

High-Resolution Hologram Calculation Method Based on Light Field Image Rendering

Yang

Zhang

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

A fast calculation method for a full parallax high-resolution hologram is proposed based on elemental light field image (EI) rendering. A 3D object located near the holographic plane is firstly rendered as multiple EIs with a pinhole array. Each EI is interpolated and multiplied by a divergent sphere wave and interfered with a reference wave to form a hogel. Parallel acceleration is used to calculate the high-resolution hologram because the calculation of each hogel is independent. A high-resolution hologram with the resolution of 200,000 × 200,000 pixels is calculated within only eight minutes. Full parallax high-resolution 3D displays are realized by optical reconstructions.

show abstract

“…A full-parallax hologram with a resolution of 20,000 × 20,000 can be up to 32.9 hours. Another rectangular tiling based algorithm is integral holography, which is the combination of integral imaging 3D display and holography [21][22][23][24]. In this method, each element light field image (EI) rendered from a micro-lens array or pinhole array is firstly fast Fourier transformed (FFT) as the complex amplitude of each elemental hologram or called hogel.…”

Section: Introductionmentioning

confidence: 99%

High-Resolution Hologram Calculation Method Based on Light Field Image Rendering

Yang¹,

Xu²,

Zhang³

et al. 2020

Preprint

View full text Add to dashboard Cite

A fast calculation method for the full parallax high-resolution hologram is proposed based on the elemental light field image (EI) rendering. A 3D object located near the holographic plane is firstly rendered as multiple EIs with a pinhole array. Each EI is interpolated and multiplied by a divergent sphere wave and interfered with a reference wave to form a hogel. Parallel acceleration is used to calculate the high-resolution hologram because calculation of each hogel is independent. A high-resolution hologram with the resolution of 20,0000×20,0000 pixels is calculated only within 8 minutes. Full parallax high-resolution 3D displays are realized by optical reconstructions.

show abstract

High resolution integral imaging display by using a microstructure array

Cited by 16 publications

References 0 publications

A Fast Computer-Generated Holographic Method for VR and AR Near-Eye 3D Display

A Fast Computer-Generated Holographic Method for VR and AR Near-Eye 3D Display

High-Resolution Hologram Calculation Method Based on Light Field Image Rendering

High-Resolution Hologram Calculation Method Based on Light Field Image Rendering

Contact Info

Product

Resources

About