Continuously adjustable Pulfrich spectacles for mobile devices

Ken Jacobs; Ron Karpf

doi:10.1117/12.907067

15 February 2012 Continuously adjustable Pulfrich spectacles for mobile devices

Ken Jacobs, Ron Karpf

Proceedings Volume 8304, Multimedia on Mobile Devices 2012; and Multimedia Content Access: Algorithms and Systems VI; 830406 (2012) https://doi.org/10.1117/12.907067
Event: IS&T/SPIE Electronic Imaging, 2012, Burlingame, California, United States

Abstract

Mobile devices present a challenging platform for 3D video because of inherent device limitations. Continuously Adjustable Pulfrich Spectacles for Mobile Devices (CAPS-MD) is a new implementation of the Pulfrich 3D stereoscopic effect. For every scene that contains lateral motion in a 2D movie, CAPS-MD provides realistic 3D. Since it requires minimal additional processing, it is appropriate for mobile devices. 3D movies utilizing the Pulfrich stereoscopic effect have been made for 80 years using passive viewing spectacles. CAPS-MD use active viewing spectacles to overcome the limitations of passive spectacles. 3D movies normally employ the asymmetry of dual images to produce stereopsis. CAPS-MD works on the principle of illumination asymmetry, and only needs to control the differential lens optical densities. CAPS-MD is fabricated from optoelectronic materials that electronically control the lens optical densities. The eye's retinal triggering is used by CAPS-MD to determine the differential lens optical densities. Motion estimation calculations from the digital image processing used to display 2D video on mobile devices are reused to calculate realtime lens adjustments so CAPS-MD always conform to the optical density that optimizes the Pulfrich stereoscopic effect. Only negligible additional processing is necessary for CAPS-MD to show 3D for every scene that contains lateral motion in any 2D movie.

Citation Download Citation

Ken Jacobs and Ron Karpf "Continuously adjustable Pulfrich spectacles for mobile devices", Proc. SPIE 8304, Multimedia on Mobile Devices 2012; and Multimedia Content Access: Algorithms and Systems VI, 830406 (15 February 2012); https://doi.org/10.1117/12.907067

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