Three-dimensional (3D) tabletop display is a kind of display with wide range of potential applications. An auto-stereoscopic 3D tabletop display system is designed to provide the observers with high level of immersive perception. To improve the freedom of viewing position, the eye tracking system and a set of active partially pixelated masks are utilized. To improve the display quality, large number of images is prepared to generate the stereo pair. The light intensity distribution and crosstalk of parallax images are measured respectively to evaluate the rationality of the auto-stereoscopic system. In the experiment, the high immersive auto-stereoscopic tabletop display system is demonstrated, together with the system architectures including hardware and software. Experimental results illustrate the effectiveness of the high immersive auto-stereoscopic tabletop display system.
KEYWORDS: Video, Calibration, Video coding, Cameras, 3D displays, Imaging systems, Distortion, 3D video compression, Video compression, Computer programming
A visible region of interest (ROI) extraction method based on region expansion is proposed. It is a method that is combined with a new reverse realization of calibration based on homography. The proposed method extracts the ROI automatically and successfully and simultaneously calibrates the distortion caused by the stereoscopic camera system. It is a practical and easy method because it does not require any extra processing before display. It can be used to discard the confusing margin of the synthesized image of several parallax images and reduce the data amount needed to be processed and encoded. Here, real-time capturing, transmitting, and three-dimensional displaying systems are demonstrated to verify its effectiveness and feasibility.
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