Efficient deinterlacing algorithm using edge-based line average interpolation

An efficient algorithm is proposed for the interpolation of interlaced imag es. On the basis of the edge-based line average (ELA) algorithm, tow useful measurements are introduced within the operation window in order to allevi ate misleading decisions in determining the direction where the interpolati on is to be made. By efficiently estimating the directional spatial correla tions of neighboring pixels, increased interpolation accuracy has been achi eved. In addition, the new method is simply structured and is therefore eas y to implement. Extensive simulations conducted for different images and vi deo sequences have shown the efficacy of the proposed interpolator, with si gnificant improvement over previous ELA-based algorithms. (C) 2000 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(00)02808-7].