Pixel Rematching Theory And Its Application In Naked-eye 3D Technology

The theory and method of naked-eye 3D technology are becoming more and more mature,which makes the photoelectric imaging technology to reproduce 3D scene become a reality.According to the independent view area theory,naked-eye 3D technology uses multiple sub screens to display the left and right eye images and form an independent view area in front of the display.Therefore,in the process of video processing and pixel transmission,it is necessary to use microelectronic methods to accurately "extract" the pixel data stream of parallax image and transmit it in the order of sub screen pixel data stream,The video image is configured strictly according to the pulse sequence of the screen video interface to complete the sub screen pixel rematching.The main research work of this thesis includes:(1)The output format of 3D video is discussed and determined,and a multi view3 D image sensor is constructed,including two-way 3D image sensor and four view 3D image sensor.The 3D video output format is discussed and determined.The video processing methods,steps and structures from the sensor end to the display end in the field of naked-eye 3D technology are combed.The disparity image acquired by 3D image sensor is combined into video frame by using the method of multi eyes in the same frame,which is convenient for transmission and storage.The microelectronic processing method of multi view 3D image sensor is studied.The video processing logic algorithm of multi view 3D image sensor is formed according to the synchronous configuration,synchronous acquisition and wheel sequence cache.The effect of video combining is tested through experiments.(2)This paper studies the matching relationship between 3D video format and sub screen of naked-eye 3D technology,and proposes the pixel rematching theory to summarize the video processing methods in this technical field.The sub screen is divided according to the number of views,and the method of sub screen pixel rematching is studied.The relationship between the basic concept,connotation and extension,technology and method of pixel rematching theory is clarified,and the "pixel rematching theory" is used to describe this unique video processing process.(3)According to the theory and requirement of pixel rematching,the module composition of pixel rematching system is studied.According to the number of sub screens and the requirement of pixel rematching,the image preprocessing is carried out,and the combined frame processing is designed,and the parallax image required by the sub screen is output in left and right format.The rotation order cache algorithm is designed to ensure the SDRAM correctly cache the pixel data of each view.The pixel rematching processing module is designed to rearrange the pixel data according to the view position and sub screen requirements,and to reconfigure the pixel data of each view to the corresponding sub screen.The display module is designed to precisely control the interface timing,and output the image data after pixel rematching through TTL interface or VGA interface.(4)FPGA is used to design the digital logic of video processing,and several 3D image sensors are used to construct the overall hardware system of pixel rematching combined with naked-eye 3D LCD screen.Based on the constructed multi view 3D image sensor,the multi view combined frame video is output to verify the correctness of the video combined frame processing logic algorithm.Two view bidirectional 3D image sensor is used for experiments to verify the correctness of single direction parallax image extraction process and pixel rematching process,and output to nakedeye 3D display screen to verify the naked-eye 3D stereo effect.Experiments are carried out by using multi view 3D image sensor,and multi view pixel rematching is completed by pixel rematching system,which verifies the rationality and universality of pixel rematching theory.The method of "multi eye frame combination" and "pixel re matching theory" proposed in this paper can well represent the video processing technology in the field of naked-eye 3D technology.The conclusions of this paper can provide theoretical and technical basis for the development of naked-eye 3D Technology IC.