The problem of mixed pixels negatively affects the delineation of accurate surface water in Landsat Imagery. Linear spectral unmixing has been demonstrated to be a powerful technique for extracting surface materials at a sub-pixel scale. Therefore, in this paper, we propose an innovative low albedo fraction (LAF) method based on the idea of unconstrained linear spectral unmixing. The LAF stands...

To my beautiful wife for her love and encouragement To my brother for his continuous support To my parents, my first teachers ii ACKNOWLEDGMENTS I would like to express my sincere gratitude and thanks to my advisor Dr. Chika Nwankpa, for his continuous guidance, support and friendship. Since the beginning of my graduate career at Drexel, and up to the very final edits of this document, he has b...

In this paper, we are going to present a data dissemination protocol for wireless multimedia sensor networks (WMSN). The proposed protocol entitled as PLAF (Priority based Location Aided Flooding) is used for packet dissemination in WMSN. PLAF considers network as a virtual grid. Depending on its geographical position, each node is placed in one of network cells. We prevent sending redundant pa...