Optical Camera Tracking in Virtual Studios: Degenerate Cases
نویسندگان
چکیده
Over the past few years, virtual studios applications have significantly attracted the attention of the entertainment in dustry. Optical tracking systems for virtual sets produc tion have become particularly popular tending to substitute electro-mechanical ones. In this work, an existing optical tracking system [IJ is revisited, in order to tackle with inher ent degenerate cases; namely, reduction of the perspective projection model to the orthographic one and blurring of the blue screen. In this context, we propose a simple al gorithm for 3D motion estimation under orthography using 3D-to-2D line correspondences. In addition, the watershed algorithm is employed for successful feature extraction in the presence of defocus or motion blur.
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تاریخ انتشار 2000