年間 12 号発行
ISSN 印刷: 0040-2508
ISSN オンライン: 1943-6009
Indexed in
Modified Vector Sigma-Filter for the Processing of Multichannel Radar Images and Increasing Reliability of its Interpretation
要約
A modified vector sigma-filter (MVSF) is presented designed for the processing of multichannel radar images. Based on the standard filtration quality-estimation criteria it is shown that the modification ensures a compromise between the basic properties of the filter. Having a sufficient stability as to disturbances, the MVSF allows substantially suppressing the multiplicative noise and ensuring the preservation of boundaries and of small-sized objects even at relative feeble contrasts. On the test images it is shown that, when evaluating the erodibility of a soil without vegetation, the use of the MVSF (instead of its scalar analog and original image classification) leads to the increase of the accuracy of remote-sensing data classification.