Academic Journal
A method to better account for modulation transfer functions in ARSIS-based pansharpening methods
| العنوان: | A method to better account for modulation transfer functions in ARSIS-based pansharpening methods |
|---|---|
| المؤلفون: | Massip, Pierre, Blanc, Philippe, Wald, Lucien |
| المساهمون: | CEP/Sophia, Centre Énergétique et Procédés (CEP), Mines Paris - PSL (École nationale supérieure des mines de Paris), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Mines Paris - PSL (École nationale supérieure des mines de Paris), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) |
| المصدر: | ISSN: 0196-2892 ; IEEE Transactions on Geoscience and Remote Sensing ; https://minesparis-psl.hal.science/hal-00644244 ; IEEE Transactions on Geoscience and Remote Sensing, 2011, 99, pp.800-808. ⟨10.1109/TGRS.2011.2162244⟩. |
| بيانات النشر: | HAL CCSD Institute of Electrical and Electronics Engineers |
| سنة النشر: | 2011 |
| المجموعة: | MINES ParisTech: Archive ouverte / Open Archive (HAL) |
| مصطلحات موضوعية: | image enhancement, modulation transfer function (MTF), multiscale techniques, remote sensing, image fusion, pan-sharpening, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing |
| الوصف: | International audience ; Multispectral (MS) images provided by Earth observation satellites have generally a poor spatial resolution while panchromatic images (PAN) exhibit a spatial resolution two or four times better. Data fusion is a means to synthesize MS images at higher spatial resolution than original by exploiting the high spatial resolution of the PAN. This process is often called pansharpening. The synthesis property states that the synthesized MS images should be as close as possible to those that would have been acquired by the corresponding sensors if they had this high resolution. The methods based on the concept Amélioration de la Résolution Spatiale par Injection de Structures (ARSIS) are able to deliver synthesized images with good spectral quality but whose geometrical quality can still be improved. We propose a more precise definition of the synthesis property in terms of geometry. Then, we present a method that takes explicitly into account the difference in modulation transfer function (MTF) between PAN and MS in the fusion process. This method is applied to an existing ARSIS-based fusion method, i.e., A trou wavelet transform-model 3. Simulated images of the sensors Pleiades and SPOT-5 are used to illustrate the performances of the approach. Although this paper is limited in methods and data, we observe a better restitution of the geometry and an improvement in all indices classically used in quality budget in pansharpening. We present also a means to assess the respect of the synthesis property from an MTF point of view. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-00644244; https://minesparis-psl.hal.science/hal-00644244; https://minesparis-psl.hal.science/hal-00644244/document; https://minesparis-psl.hal.science/hal-00644244/file/2011_IEEE_Massip.pdf |
| DOI: | 10.1109/TGRS.2011.2162244 |
| الاتاحة: | https://minesparis-psl.hal.science/hal-00644244 https://minesparis-psl.hal.science/hal-00644244/document https://minesparis-psl.hal.science/hal-00644244/file/2011_IEEE_Massip.pdf https://doi.org/10.1109/TGRS.2011.2162244 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.CD97AB01 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1109/TGRS.2011.2162244 |
|---|