Full-parallax3D Imaging Using Orthogonal-stacked Lenticular Sheets And Holographic Stereogram Printing System Design

In recent years, three-dimensional display attracts more and more attention, but most thestereo display technology provides only one-dimensional parallax effect, and some stereo displaytechnology needs to wear auxiliary tool such as polarized glasses, complementary color glasses,liquid crystal glasses and stereo helmet at present. People are no longer satisfied with only one-dimensional parallactic stereo display effect along with the unceasing development of science andtechnology and the social life. In recent years, the research of full-parallax3D imaging technologyhas caused more and more attention at home and abroad. In this paper, the free stereo imaging andholographic imaging were improved in a few drawbacks of3D imaging. This paper focus on theresearch of full-parallax stereo imaging method: full-parallax stereo imaging method based onorthogonal column lens grating and the production of the full-parallax stereogram and the designof the print system.First, we introduce the basic method of free stereo display and holographic printingtechnology, and respectively review the current research situation at home and abroadrespectively.Second, we introduce several3D object perspective image acquisition methods andfull-parallax stereogram synthesis method, and discuss the basic method of acquisition image invirtual3D scene with3DMAX, including modeling, map, target camera constraint pathacquisition image. And we analysed stereoscopic image synthesis principle and method which arerespectively used in full-parallax orthogonal column lens grating imaging and full-parallaxholographic printing. We introduce image processing process in detail after the perspective imageacquisition.Third, according to grating imaging principle and full-parallax theory, this paper proposesthat we replace micro lens array imaging using orthogonal column lens grating, and analyze theimaging principle of the orthogonal cylindrical lens grating. We expound parameter measurementmethod of the column lens grating and match full-parallax synthetic stereogram with theorthogonal column lens grating, and get the true color full-parallax stereo imaging effect. Fourth, we set up the hardware and software system of the full-parallax hologram printingwhich based on transmission spatial light modulator and high precision fine shrinkage lens. Thissystem has automatic partition record function, and can control2D mobile platform to move theposition of the holographic photographic plate. The stereogram after holographic coding can beautomatic loading to the spatial light modulator. The holographic stereogram can automaticallyrecord in the corresponding partition of holographic photographic plate. And discuss theparameter design method of the system in detail. Compared original perspective image withnumerically reconstructed of perspective image after holographic encoding, and we determinedthe resolution and miniature ratio of the system.