Title :
Evaluation of the performance of spatial assessments of pansharpened images
Author :
Rodriguez-Esparragon, D. ; Marcello-Ruiz, J. ; Medina-Machin, A. ; Eugenio-Gonzalez, F. ; Gonzalo-Martin, C. ; Garcia-Pedrero, A.
Author_Institution :
Inst. for Oceanogr. & Global Change, Univ. of de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
Abstract :
The evaluation of the spatial quality is one of the factors that determine the performance of pansharpening algorithms for remote sensing images. However, the number of studies that focus on the functioning of these measures is not extensive. This paper addresses the evaluation of the performance of spatial assessments of pansharpened images. For this, a test of affine transformations that distorts the image used as reference is designed and implemented. This test is applied to the images of a database created for this purpose. Thus the behavior of different selected spatial indices is obtained. As well as the results of a proposed new spatial index based on the discrete cosine transform. Additionally, spatial quality measurements have been carried out between the panchromatic and pansharpened images in order to test the performance of the spatial quality indices.
Keywords :
affine transforms; discrete cosine transforms; geophysical image processing; remote sensing; visual databases; affine transformations; discrete cosine transform; panchromatic images; pansharpened images; pansharpening algorithms; remote sensing images; spatial assessments; spatial quality indices; spatial quality measurements; Algorithm design and analysis; Distortion measurement; Indexes; Principal component analysis; Remote sensing; Transforms; Image analysis; image fusion; image quality;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6946757
