1 research outputs found
Denoising-based image reconstruction from pixels located at non-integer positions
Digital images are commonly represented as regular 2D arrays, so pixels are
organized in form of a matrix addressed by integers. However, there are many
image processing operations, such as rotation or motion compensation, that
produce pixels at non-integer positions. Typically, image reconstruction
techniques cannot handle samples at non-integer positions. In this paper, we
propose to use triangulation-based reconstruction as initial estimate that is
later refined by a novel adaptive denoising framework. Simulations reveal that
improvements of up to more than 1.8 dB (in terms of PSNR) are achieved with
respect to the initial estimate.Comment: arXiv admin note: text overlap with arXiv:2205.1013