A Novel Adaptive Directional Interpolation Algorithm for Digital Video Resolution Enhancement

Algorithm 3:

Resolution enhancement algorithm

For each LR frame of the input digital video sequence, do the following steps:

  • Initialization: Set the bicubic interpolation of .

  • Main loop (repeat times):

    - Use Algorithm 1 to search the main direction for each patch of , calculate the corresponding adaptive directional filter matrix ;

    - Use Algorithm 2 to construct the adaptive dictionary ;

    - Taking as an initial estimation of the desired HR output , use Equation (8) to compute the resolution enhancement result ;

    - Update for the next iteration when all image patches have been restored.

  • Output: The resolution enhanced output .

Algorithm 3: