1. Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China;
2. Institute for Creative Technology, University of Southern California, Los Angeles, CA 12015, USA
Abstract：With the boost of both cutting-edge technologies and capital strength, the Virtual Reality(VR) makes a fast progress in recent years. And a technical maturity is reached for VR to be commercialized. With both the virtual reality and the 3D cinema, a stereoscopic display is generated based on the binocular parallax. But virtual reality provides more depth cues (e.g. the motion parallax) with a strong immersion than the 3D cinema. The current generation of the virtual reality still faces a series of technical problems. Especially, the vertigo and the eye fatigue are the toughest problems impeding the long-term applications of the VR. This paper briefly discusses the 3D visual perception and the causes of the vertigo and the eye fatigue. A solution to this technological bottleneck is suggested: the Dynamic Light Field. In addition, various light field technologies are compared related to the photograph and the display. At the end, three types of the augmented reality (AR) are presented and the commercial development trend of the AR and the VR are analyzed from perspectives of social interaction and communication.
[1] Geng J. Three-dimensional display technologies[J]. Advances in Optics and Photonics, 2013, 5(4): 456-535.
[2] Davison A J, Reid I D, Molton N D, et al. MonoSLAM: Real-Time Single Camera SLAM[J]. IEEE Transactions on Pattern Analysis & Machine Intelligence, 2007, 29(6): 1052-1067.
[3] Mackenzie K J, Watt S J. Eliminating accommodation-convergence conflicts in stereoscopic displays: Can multiple-focal-plane displays elicit continuous and consistent vergence and accommodation responses?[C]//Stereoscopic Displays and Applications XXI. Bellingham WA: SPIE, 2010. Doi: 10.1117/12.840283.
[4] Vienne C, Sorin L, Blondé L, et al. Effect of the accommodation-vergence conflict on vergence eye movements[J]. Vision Research, 2014, 100: 124-133.
[5] Hoffman D M, Banks M S. Disparity scaling in the presence of accommodation-vergence conflict[J]. Journal of Vision, 2010, 7(9): 824.
[6] Takaki Y. Generation of natural three-dimensional image by directional display: Solving accommodation- vergence conflict[J]. Ieice Technical Report Electronic Information Displays, 2006, 106: 21-26.
[7] Gershun A. The light field[J]. Mathematical Physics, 1939, 18: 51-151.
[8] Geng J. Volumetric 3D display for radiation therapy planning[J]. Journal of Display Technology, 2009, 4(4): 437-450.
[9] Van Berkel C. Image Preparation for 3D-LCD[C]//Stereoscopic Displays and Virtual Reality Systems VI. Bellingham WA: SPIE,1999. Doi: 10.1117/12.349368.
[10] Zhang Z X, Geng Z, Zhang M, et al. An interactive multiview 3D display system[C]//Emerging Digital Micromirror Device Based Systems and Applications V. Bellingham WA: SPIE, 2013. doi: 10.1117/12.2000360.
[11] Levoy M, Hanrahan P. Light field rendering[C]//Proceedings of the 23rd Annual Conference on Computer Graphics and Interactive Techniques. New York: ACM, 1996: 31-42.
[12] Jones A, Mcdowall I, Yamada H, et al. Rendering for an interactive 360° light field display[J]. Acm Transactions on Graphics, 2007, 26 (3): 40.
[13] Cao X, Geng Z, Zhang M, et al. Load-balancing multi-LCD light field display[C]//Stereoscopic Displays and Applications XXVI, 93910F. Bellingham WA: SPIE, 2015. Doi:10.1117/12.2078366.
[14] Cao X, Geng Z, Li T, et al. Accelerating decomposition of light field video for compressive multi-layer display[J]. Optics Express, 2015, 23 (26): 34007-34022.
[15] Bennett W, Neel J, Vaibhav V, et al. High-speed videography using a dense camera array[C]//Proceedings of the 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. Washington, DC: IEEE Computer Society, 2004: 294-301.
[16] Wilburn B, Joshi N, Vaish V, et al. High performance imaging using large camera arrays[J]. ACM Transactions on Graphics, 2005, 24(3): 765-776.
[17] Ren Ng, Levoy M, Bredif M, et al. Light field photography with a hand-held plenopic camera[R]. Palo Alto, California: Stanford University, 2005: Stanford Tech Report CTSR 2005-02.
[18] Marwah K, Wetzstein G, Bando Y, et al. Compressive light field photography using overcomplete dictionaries and optimized projections[J]. ACM Transactions on Graphics, 2013, 32(4): 46.
[19] Cao X, Geng Z, Li T. Dictionary-based light field acquisition using sparse camera array[J]. Optics Express, 2014, 22(20): 24081-24095.
2016, Vol. 34 
