Use of Bilateral Filters for Super-Resolution of Single Image with Iterations for Minimizing Reconstruction Errors
Chang Jian, Kohei Inoue, Kiichi Urahama · The Journal of The Institute of Image Information and Television Engineers · 2009
The use of a nonlinear filter for super-resolution of a single image is presented. A nonlinear iterative solution procedure is derived from an approximate Newton method for minimizing errors in low-resolution images reconstructed from estimated high-resolution images. We use the bilateral filter for image smoothing in the reconstruction steps. Our method was shown to produce high-resolution images without halos around edges and with enhanced fine textures.