Multi-view autostereoscopic projection display using rotating screen

Abstract

A new technique for multi-view autostereoscopic projection display is proposed, and demonstrated. The technique uses two mobile projectors, a rotating retro-reflective diffuser screen, and a head-tracking camera. As two dynamic viewing slits are created at the viewer's position, the slits can track the position of the eyes by rotating the screen. The display allows a viewer to move approximately 700 mm along the horizontal axis, and 500 mm along the vertical axis with an average crosstalk below 5 %. Two screen prototypes with different diffusers have been tried, and they provide luminance levels of 60 Cd/m2, and 160 Cd/m2 within the viewing field.

Wearable and augmented reality displays using MEMS and SLMs

“…The combination creates two viewing slits (one per each eye) that can be steered to the position of viewers head. In this way, a light efficient autostereoscopic system is implemented [4].…”

Super stereoscopy 3D glasses for more realistic 3D vision

“…In order to overcome this problem, we added pupil tracker to change the slits' angle in order to preserve the viewer's 3D vision using OpenCV through python coding language. Detailed information about the screen can be found in our group's related journal article [7]. …”

“…Instead of using regular stereoscopic glasses to separate the left and right eye's content, we used our inhouse built screen [7] which has the capability of separating left and right image information with no difficulty. Figure 3 shows the image of glasses built in-house for the setup in which the slit version has 10 slits per eye with a slit width of 1 mm and center to center distance of 1.8 mm, and the pinhole version has 6×10 pin holes with a diameter of 0.8 mm and a center to center distance of 1 mm.…”

Image quality affected by diffraction of aperture structure arrangement in transparent active-matrix organic light-emitting diode displays

“…The development of microprojection applications on wearable devices is popular research in this field. Many researches focus on stereoscopic 3D projection, bilateral projection function, or imaging quality improvement [17][18][19][20].…”