A 360-degree floating 3D display based on light field regeneration

Abstract

Using light field reconstruction technique, we can display a floating 3D scene in the air, which is 360-degree surrounding viewable with correct occlusion effect. A high-frame-rate color projector and flat light field scanning screen are used in the system to create the light field of real 3D scene in the air above the spinning screen. The principle and display performance of this approach are investigated in this paper. The image synthesis method for all the surrounding viewpoints is analyzed, and the 3D spatial resolution and angular resolution of the common display zone are employed to evaluate display performance. The prototype is achieved and the real 3D color animation image has been presented vividly. The experimental results verified the representability of this method.

A scalable diffraction-based scanning 3D colour video display as demonstrated by using tiled gratings and a vertical diffuser

“…Similarly, for light field displays to distribute the information needed and produce directional light effect, a light distribution system (scanning/tiling mechanism) is required. Such a system can be a micro-lens array15, a rotation mirror1617, an rotation off-axis lens718, or simply a combination of multiple projectors41920.…”

Review on tabletop true 3D display

“…Such hardware structure is updated to meet requirements for considerable amount of light information. For example, a three‐chip DMD‐based projector with red, green, and blue LEDs as light sources achieved ultra–high‐speed rendering with 32 552 single‐bit frames per second and a resolution of 1024 × 768 …”

P‐78: An Interactive 360° Floating 3D Display Based on Gesture Recognition

“…Here, Θ is the spatial matrix of the original 3D model, ∑ img is the group of projection images by which a static 3D image can be displayed, and f () indicates the mapping relationship between the projection images and spatial points which has been discussed detailed in [6].…”

“…Based on the previous research work on the 360-degree light field 3D display [6], we add interactive device to this system and implement a novel gesture-based interactive floating 3D display system.…”