eye-tracking 3D digital signs

Introducing New Eye-Tracking 3D Digital Signage!

Tianma NLT America recently announced the successful development of a new autostereoscopic 3D display system by NLT Technologies that the company said optimizes parallax from an arbitrary viewpoint to reduce the influence of 3D-crosstalk and display motion parallax.

The new 3D eye-tracking digital signage system achieves “smooth and realistic” 3D images, according to the company, without the use of glasses, by combining NLT’s proprietary 3D image processing engine with the company’s high density autostereoscopic display method, along with an eye-tracking device that detects the observer’s eye position with a high level of accuracy.

As autostereoscopic 3D displays have become more popular, there have been some issues that limit the value of 3D technology, such as ghost images, image reversal and the limitation of suitable 3D viewing spaces, the company said. To address these issues, increasing the number of viewing points on a multiview autostereoscopic display will broaden the suitable viewing space and reduce image reversal. However, increasing the number of viewing points also decreases the density of the 3D image. So, it is difficult to both minimize image reversal and achieve a high density 3D image. NLT said it has resolved this dilemma without using a multiview 3D display — using only a two-view 3D display with high-density technology, its 3D image processing engine and an eye-tracking device. This system monitors the observer’s eye positions, and varies binocular parallax based on the viewing angle without decreasing the density of the 3D image.

The image processing engine converts stereo images, optimized for the characteristics of the autostereoscopic display, to correspond to the observer’s eye position, which is detected by the eye-tracking device, and it can optimize arbitrary viewpoints to reduce the influence of 3D-crosstalk and to display motion parallax, the company said. The system monitors the observer’s eye positions and varies binocular parallax based on the viewing angle.

The 3D Technology with the new 3D eye-tracking system will be demonstrated at SID Display Week 2014 this week in San Diego.