Development and Evaluation of a Binocular Stereoscopic Display System with Coupled Convergence and Accommodation Demands
This project aims to solve the problem of the decoupling of the convergence and
accommodation in general stereo systems. Unlike the previous solution to the decoupling of the convergence and accommodation by way of
measuring eye fixation and adjusting the screen optical distance to match the fixated object distance simulated via disparity, which is quite
difficult to implement, our solution is to use eye movements monitoring to determine the object being fixated and change the disparity or
convergence demand of all objects to bring the fixated object to zero disparity and thus remove the convergence accommodation decoupling
conflict. This can be done computationlly and thus simplify the system as it requires no change in hardware from current designs. The final aim
of this project is to build a new stereo system which the viewer can feel more comfortable.
A short Quicktime video demonstrating the convergence changing can be downloaded for viewing here. Two versions (encoded differently) are provided. If the first one (which is much smaller) doesn't work for you, try the second (which is very large).
You can download Quicktime for free from Apple if you don't have it.
| Demo with Sorensen codec | 320x240, 15fps, 11sec | 2.53 Megabytes |
| Demo with Intel 4.4 codec | 320x240, 15fps, 11sec | 9.92 Megabytes |
NASA-Ames Cooperative agreement No. NCC 2-1039. "Development and Evaluation of a Binocular Stereoscopic Display System with Coupled Convergence and Accommodation Demands"
Peli E. Hedges R. Tang J. Landmann D. (2001). A binocular stereoscopic display system with coupled convergence and accommodation demands.2001 SID International Symposium, Digest of Technical Papers, San Jose, CA. Society for Information Display. 53.2, 1296-1299. [PDF 240 KB]
Wong BPH, Woods RL, Peli E. Stereoacuity at distance and near. Optom Vision Sci 79(12): 771-778. [PDF 420 KB]
Peli E. Optometric and perceptual issues with head-mounted dispaly (HMD).
in Visual
Intrumentation: Optical Design & Engineering Principles, Mouroulis P (ed.)
McGraw-Hill, 1999, p. 205-276
Peli E. Optometric issues with head mounted display. The Ellerbrock Program,
Annual Meeting of the American Academy of Optometry, Orlando FL, December 9,
2000, pp. 33 - 36. [Oultine
of presentation, PDF 22KB]