A destriping algorithm based on TV-Stokes and unidirectional total variation model

摘要

Imaging from a degenerated push broom scanner usually leads to an undesired stripe noise which seriously affected the image quality. The original unidirectional total variation (UTV) model produces a poor performance on stripe images which has a strong contrast between cleaning image area and striped area or different image area. In this research, a new destriping method which combines TV-Stokes and UTV model (UTV-Stokes for short) has been developed to overcome the disadvantages of UTV. By distinguishing stripe region and no-stripe region in calculation, this method can avoid excessive smoothing or residual's appearing through less filtering. Comparative results on simulated and real striped images taken with MODIS and hyperspectral imaging systems demonstrated that the proposed method not only can handle various stripe images with different noise intensity but also can preserve the edge and detailed information. (C) 2015 Elsevier GmbH. All rights reserved.