A Practical Multi-viewer Tabletop Autostereoscopic Display
Autostereoscopic Displays provide stereoscopic perception without the use of special headgear or glasses on the part of the viewer. Lack of success in the adoption of autostereoscopic displays was justified by being expensive or cheap with a limited functionality. This study benefits from “Random Hole Display”(RHD) concept to produce a non-uniform barrier. The problem with RHD is the rendering method, fixed view calibration, and the inter reflection between the barrier and display.
To reduce the inter-reflection problem, they selected construction materials designed separated layers to mask film. In addition, a rendering algorithm was developed to produce interactive stereoscopic images to support multiple users. They reduced the crosstalk from conflict pixels by post-processing for error diffusion. A sampling based calibration method was proposed to improve real-world tracking system.
Scape: Supporting Stereoscopic Collaboration in Augmented and Projective Environments
One of the limitations in 3D collaborative interfaces is rendering images from a single user’s point of view. The other users will experience motion distortion and both point of view. The objective of the paper was to design a system to streamline the process of collaborative task performance using Head-mounted projective display (HMPD). The benefit of using HMPD is to replace eye piece type optics with projective lenses.
Augmentation and interaction were supported by a vision-based 2D object tracking method. The method helped to recognize and place objects on the workbench. Since the system presents a miniature visualization of 3D data set, magnifier lenses were designed on top of the 3D interface. An auto-collaborator class was implemented to build a simple, augmented, virtual environment with minimum coding requirement.
In general paper was demonstrating a new virtual environment displays and it was interesting to read.
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