Integral Imaging Research Based On3D Reconstruction

Integral Imaging is one of the3D image technologies using micro-lens torecord and display images. Since no special apparatus is needed for observers andno specific requirement is needed for the recording environment, it is becomingthe most practical and perspective3D display technique in developing nextgeneration three-dimensional TV (3DTV) and visualization fields and attractingmuch attention.At the moment, the major factors that restrict the development of integralimaging technology are limited resolution for3D display, limited depth range forcorrected reconstruction and limited observing range for the viewers. Now themajor problem is that the existing analysis way of thinking is restricted bytraditional2D images analysis methods. Unlike a traditional2D image, an IntegralImage is composed with many small2D Element Images (EI). They suppose thepremise of II image presents optimum optical effect is every elemental imageshould have best effect. In practice, the viewer perceives the reconstructed3Doptical model of the object scene rather than each separated elemental image.In view of these problems mentioned above, this dissertation is focused onviewing angle analysis and three-dimensional spatial resolution analysis on thereconstructed3D spatial object rather than each distinctive2D elemental image.The main research contents are summarized as follows:(1) The simple pinhole camera model which can generate integral image isconstructed (SPC-II). Secondary development to software Pov-Ray is completedaccording to the feature of integral image.(2) The viewing angle and flipping phenomenon is analyzed in considerationof observer (i.e., pupil restriction). And the relationship between viewing zone andthe microlens parameters is deduced.(3) Numerical analysis method is adopted to reconstruct the3D spatial scenefrom the recorded integral image. And the interpolation algorithm is executed toget continuous disparity and more precise depth information (IDEA). Theprecision of3D reconstruction is improved.(4) The resolution analysis model is established in the view of3Dreconstruction. The3D spatial resolution of the ideal II imaging system isanalyzed and calibrated. And the analysis how the recording resolution and thenon-ideal lens array will affect the3D reconstruction resolution has carried out.The analysis and simulation results in our work would provide not onlytheoretical guidance for the generation of high resolution integral images but also application fundamental for the development of the next generation3DTV. Itwould promote the further development of integral imaging technology.