| 摘要 |
Known field rate upconversion algorithms show a poor motion portrayal and undesirable artefacts, e.g. double image and 'mouse teeth' structure. The inventive algorithm calculates each pixel of the intermediate fields from nearby pixels in the existing fields using an adaptive linear filter characterised by the following steps: Calculation of sums of differences, one or more for each pixel involved in the adaptive filter; Calculation of basic coefficients, one for each pixel involved in the adaptive filter; One-dimensional median filtering of coefficients; Two-dimensional linear filtering of coefficients; Normalization of coefficients; Calculation of main interpolated pixel value; Correction of interpolation in the case of fast motion. <IMAGE> |
