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Symposium on Rendering
This paper presents a practical system for capturing high-resolution video mattes using cameras that contain two imagers on one optical axis. The dual imagers capture registered frames that differ only by defocus or polarization at pixels corresponding to special background 'gray-screens.' This system eliminates color spill and other drawbacks of blue-screen matting while preserving many of its desirable properties (e.g., unassisted, real-time, natural illumination) over more recent methods,doi:10.2312/egwr/egsr06/235-244 fatcat:paah5a3rinfxtbvc3xdgzgku34