Efficient algorithms for interlaced to progressive scan conversion

Two efficient algorithms for interlaced to progressive scan conversion are proposed in this paper. Unlike the existing algorithms that solely employ complicated filters to achieve high-dB conversion, the new algorithms adaptively use simple linear or nonlinear filters to achieve even higher-dB conversions, while maintain lower computational complexities, depending on whether the pixel to be interpolated is stationary or moving. Detection of pixel motion is performed by a simple 3-point median filter. Simulation results show that the new algorithms produce better performance both in SNR and complexity than the comparable known algorithms