Research And Implementation Of Glasses-free 3D Display System Based On DIBR

With the rapid development of 3D display technology in recent years, 3D products have been coming into the ordinary people’s lives. However, the most common 3D products require auxiliary equipment, such as 3D glasses, to display stereoscopic effect. It has seriously limited the popularity of 3D products. To solve this problem, glasses-free 3D display technology comes into being and has been widely concerned.According to the research on glass-free 3D display system, the purpose of this dissertation is to solve the hole-filling problem of depth-image-based rendering(DIBR) in glasses-free 3D display system and achieve the hardware implementation of the system, which will provide the theoretical and technical support for the application of glasses-free 3D display.In this dissertation, the theoretical basis about 3D visual perception of the human eye and 3D display device is firstly introduced. Then, the view synthesis based on DIBR and glasses-free 3D display based on DIBR are introduced. For view synthesis based on DIBR, the hole-filling technology is studied. And a novel algorithm of hole-filling based on spatio-temporal domain is proposed. On the other hand, for glasses-free 3D display based on DIBR, a kind of FPGA hardware architecture of glasses-free 3D display system is proposed. Designs of the whole system and each submodule are provided. This dissertation aims at improving the effect of hole-filling to obtain better results of DIBR, and accomplishing the hardware implementation of glasses-free 3D display system based on DIBR.The main research results of this dissertation are summarized as follows.① For the hole problem of view synthesis, the hole-filling technology of DIBR is analyzed and improved. A novel hole-filling algorithm based on spatio-temporal domain is proposed, which can utilize the image information from various frames of different time to fill holes with large size. Comparison between proposed algorithm and traditional algorithm which is based on spatial domain shows that the quality of synthesised novel view is improved.② The hardware architecture design of glasses-free 3D display system based on DIBR is proposed, which is implemented on development platform of FPGA with Verilog HDL. The system supports 720 p video input and 1080 p display under the 200 MHz clock frequency, which can provide the glasses-free 3D display in real time.③ Considering the actual situation of hardware development platform, a DDR2 SDRAM storage solution for alternative input of color image and depth image is proposed. The corresponding design of pipeline is completed. Meanwhile, the solution plan of input and output resolution conversion is also provided.④ Functional simulation and timing simulation of the hardware system and its submodules are accomplished. So are the synthesis, implementation, bit file generation and display of the system.As an original work, the author tried his best to make a breakthrough on research methods and research thoughts, and the research results will provide new methods for the study and practical applications of glasses-free 3D display system.