ABSTRACT A variety of techniques exist for change detection of multitemporal remotely sensed sate... more ABSTRACT A variety of techniques exist for change detection of multitemporal remotely sensed satellite data. The Intensity- Hue-Saturation (IHS) color space is very useful for image processing because it separates the color information in ways that correspond to the human visual system's response. In this study, a novel approach, emphasizing the use of the hue component of the IHS transformations of Landsat data, is proposed and examined for multitemporal change detection. Two Landsat Thematic Mapper (TM) scenes acquired on 1987 and 1997 covering the western part of El-Fayoum area and El- Rayan lakes in Egypt have been processed (geometrically corrected and radiometrically balanced) and transformed to the IHS space. The results of using the hue component in detecting the changes are very promising. A number of changed areas including water and agriculture land were successfully detected. The used color theme print, which display the spatial pattern of change in map form, was of great significance in interpreting the environmental changes and the statistical estimation of these changes has been carried out as well.
In this paper, we propose a super-resolution (SR) reconstruction algorithm for Egyptsat-1 images.... more In this paper, we propose a super-resolution (SR) reconstruction algorithm for Egyptsat-1 images. We recombine the lower resolution of Egyptsat-1 bands in order to obtain a super-resolution product. The algorithm is based on image fusion scheme using the multi-resolution decomposition. The fusion process is done in steerable wavelet domain using normalized convolution technique. We show the implementation of the proposed
... floods in Wadi Hudain catchment, Egypt Mohammed El Bastawesy,1* Kevin White2 andAyman Nasr1 1... more ... floods in Wadi Hudain catchment, Egypt Mohammed El Bastawesy,1* Kevin White2 andAyman Nasr1 1 National Authority for Remote Sensing and Space Sciences (NARSS), Egypt 2 Geography Department, Reading University UK Abstract: ...
ICGST International Journal on Graphics, Vision and …
Page 1. Integration of Misrsat-1 and SPOT-2 Data for Quantitative Change Detection Applications A... more Page 1. Integration of Misrsat-1 and SPOT-2 Data for Quantitative Change Detection Applications Ayman H. Nasr, Ashraf K. Helmy National Authority for Remote Sensing and Space Sciences (NARSS), St. 23 Joseph Broz Tito ...
ABSTRACT A variety of techniques exist for change detection of multitemporal remotely sensed sate... more ABSTRACT A variety of techniques exist for change detection of multitemporal remotely sensed satellite data. The Intensity- Hue-Saturation (IHS) color space is very useful for image processing because it separates the color information in ways that correspond to the human visual system's response. In this study, a novel approach, emphasizing the use of the hue component of the IHS transformations of Landsat data, is proposed and examined for multitemporal change detection. Two Landsat Thematic Mapper (TM) scenes acquired on 1987 and 1997 covering the western part of El-Fayoum area and El- Rayan lakes in Egypt have been processed (geometrically corrected and radiometrically balanced) and transformed to the IHS space. The results of using the hue component in detecting the changes are very promising. A number of changed areas including water and agriculture land were successfully detected. The used color theme print, which display the spatial pattern of change in map form, was of great significance in interpreting the environmental changes and the statistical estimation of these changes has been carried out as well.
In this paper, we propose a super-resolution (SR) reconstruction algorithm for Egyptsat-1 images.... more In this paper, we propose a super-resolution (SR) reconstruction algorithm for Egyptsat-1 images. We recombine the lower resolution of Egyptsat-1 bands in order to obtain a super-resolution product. The algorithm is based on image fusion scheme using the multi-resolution decomposition. The fusion process is done in steerable wavelet domain using normalized convolution technique. We show the implementation of the proposed
... floods in Wadi Hudain catchment, Egypt Mohammed El Bastawesy,1* Kevin White2 andAyman Nasr1 1... more ... floods in Wadi Hudain catchment, Egypt Mohammed El Bastawesy,1* Kevin White2 andAyman Nasr1 1 National Authority for Remote Sensing and Space Sciences (NARSS), Egypt 2 Geography Department, Reading University UK Abstract: ...
ICGST International Journal on Graphics, Vision and …
Page 1. Integration of Misrsat-1 and SPOT-2 Data for Quantitative Change Detection Applications A... more Page 1. Integration of Misrsat-1 and SPOT-2 Data for Quantitative Change Detection Applications Ayman H. Nasr, Ashraf K. Helmy National Authority for Remote Sensing and Space Sciences (NARSS), St. 23 Joseph Broz Tito ...
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