A wavelet based method of removing strip interfering

摘要

Affected by time difference, sensor and other unsure factors, there is often strip interfering appeared in bi-directional scanning satellite image. The usual method used to remove strip interfering is filtering in frequency field. According to the number of detecting units in detector, using properties of multi-scale and localization, a proper sub-image corresponding to strip noise is got by wavelet decomposition. By processing the sub-image, ideal result is obtained. As far as removing dragging-part and remaining information are concerned, this method is better than the one based on Fourier transform. Experiments with CBERS-1 images have shown that this method is very effective.