Eye-position detection system

Heidrich, Holger; Schwerdtner, Armin; Glatte, A; Mix, Hartmut

doi:10.1117/12.384442

Cited by 6 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Identifying the time during which the viewer blinks and measuring the size of the pupil has been considered [62]. A pair of cameras and a feature-based stereo algorithm can be used to extract interest points in the images [63]. Those points representing the eyes are determined by means such as stereo correlation, template matching and detection of synchronously moving pairs.…”

Section: Head Tracking Systemsmentioning

confidence: 99%

A Survey of 3DTV Displays: Techniques and Technologies

Benzie

Watson

Surman

et al. 2007

IEEE Trans. Circuits Syst. Video Technol.

198

View full text Add to dashboard Cite

The display is the last component in a chain of activity from image acquisition, compression, coding transmission and reproduction of 3-D images through to the display itself. There are various schemes for 3-D display taxonomy; the basic categories adopted for this paper are: holography where the image is produced by wavefront reconstruction, volumetric where the image is produced within a volume of space and multiple image displays where two or more images are seen across the viewing field. In an ideal world a stereoscopic display would produce images in real time that exhibit all the characteristics of the original scene. This would require the wavefront to be reproduced accurately, but currently this can only be achieved using holographic techniques. Volumetric displays provide both vertical and horizontal parallax so that several viewers can see 3-D images that exhibit no accommodation/convergence rivalry. Multiple image displays fall within three fundamental types: holoform in which a large number of views give smooth motion parallax and hence a hologram-like appearance, multiview where a series of discrete views are presented across viewing field and binocular where only two views are presented in regions that may occupy fixed positions or follow viewers' eye positions by employing head tracking. Holography enables 3-D scenes to be encoded into an interference pattern, however, this places constraints on the display resolution necessary to reconstruct a scene. Although holography may ultimately offer the solution for 3DTV, the problem of capturing naturally lit scenes will first have to be solved and holography is unlikely to provide a short-term solution due to limitations in current enabling technologies. Liquid crystal, digital micromirror, optically addressed liquid crystal and acoustooptic spatial light modulators (SLMs) have been employed as suitable spatial light modulation devices in holography. Liquid crystal SLMs are generally favored owing to the commercial availability of high fill factor, high resolution addressable devices. Volumetric displays provide Manuscript both vertical and horizontal parallax and several viewers are able to see a 3-D image that exhibits no accommodation/convergence rivalry. However, the principal disadvantages of these displays are: the images are generally transparent, the hardware tends to be complex and non-Lambertian intensity distribution cannot be displayed. Multiple image displays take many forms and it is likely that one or more of these will provide the solution(s) for the first generation of 3DTV displays.

show abstract

Section: Head Tracking Systemsmentioning

confidence: 99%

A Survey of 3DTV Displays: Techniques and Technologies

Benzie

Watson

Surman

et al. 2007

IEEE Trans. Circuits Syst. Video Technol.

198

View full text Add to dashboard Cite

show abstract

“…2 Multiple image displays are defined as those where images are formed on a screen and the light radiating from each point varies with direction. These are of four primary types; these are a display where a large number of views give smooth motion parallax and hence a hologram-like appearance (referred to as "holoform"), 3 multi-view where a series of discrete views is presented across viewing field, 4 multiple image where stereoscopic pairs are presented in regions that may occupy fixed positions 5 or follow viewers' eye positions using head tracking 6 and light field where discrete beams of light radiate from points on the screen.…”

Section: Introductionmentioning

confidence: 99%

MUTED: Multi‐user 3‐D display

et al. 2010

View full text Add to dashboard Cite

Research described in this paper encompasses the design and building of glasses-free (autostereoscopic) displays that utilize a direct-view liquid-crystal display whose backlight is provided by a projector and novel steering optics. This is controlled by the output of a multi-user head-position tracker. As the displays employ spatial multiplexing on a liquid-crystal-display screen, they are inherently 2-D/3-D switchable with 2-D being achieved by simply displaying the same image in the left and right channels. Two prototypes are described in this paper; one incorporating a holographic projector and the other a conventional LCOS projector. The LCOS projector version addresses the limitations of brightness, cross-talk, banding in the images, and laser stability that occur in the holographic projector version. The future development is considered and a comparison between the prototypes and with other 3-D displays is given

show abstract

“…2 Autostereoscopic displays using multiple image techniques, where more than one image viewpoint is presented simultaneously (binocular or multi-view), are already commercially viable, although most are only able to support one viewer and often require a fixed location of the user for optimal viewing. [3][4][5] Our multiple-viewer autostereoscopic display attempts to overcome these current limitations. The display operates by producing exit pupils from a stereo image pair that is produced simultaneously on a single direct-view LCD.…”

Section: Introductionmentioning

confidence: 99%

The construction and performance of a multiviewer 3‐D television display

Surman¹,

Sexton²,

Bates³

et al. 2005

J Soc Info Display

View full text Add to dashboard Cite

Abstract— The De Montfort University (DMU) autostereoscopic 3‐D display, intended for television applications, is described. It provides freedom of viewer movement over a typical “living room” sized area, with no restrictions on viewer's head positions. The display is capable of supplying 3‐D images to multiple viewers who do not need to wear special glasses. It operates by producing regions (exit pupils) in the viewing field where either a left or a right image is perceived. The positions of the exit pupils are steered to the viewers' eyes by the use of head tracking. Design issues that became apparent during the construction of a first prototype, and the findings from tests on it, are described. In addition, the current status of a more advanced prototype is reported.

show abstract

Eye-position detection system

Cited by 6 publications

References 0 publications

A Survey of 3DTV Displays: Techniques and Technologies

A Survey of 3DTV Displays: Techniques and Technologies

MUTED: Multi‐user 3‐D display

The construction and performance of a multiviewer 3‐D television display

Contact Info

Product

Resources

About