2,742 research outputs found

    A Comprehensive Survey of Deep Learning in Remote Sensing: Theories, Tools and Challenges for the Community

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    In recent years, deep learning (DL), a re-branding of neural networks (NNs), has risen to the top in numerous areas, namely computer vision (CV), speech recognition, natural language processing, etc. Whereas remote sensing (RS) possesses a number of unique challenges, primarily related to sensors and applications, inevitably RS draws from many of the same theories as CV; e.g., statistics, fusion, and machine learning, to name a few. This means that the RS community should be aware of, if not at the leading edge of, of advancements like DL. Herein, we provide the most comprehensive survey of state-of-the-art RS DL research. We also review recent new developments in the DL field that can be used in DL for RS. Namely, we focus on theories, tools and challenges for the RS community. Specifically, we focus on unsolved challenges and opportunities as it relates to (i) inadequate data sets, (ii) human-understandable solutions for modelling physical phenomena, (iii) Big Data, (iv) non-traditional heterogeneous data sources, (v) DL architectures and learning algorithms for spectral, spatial and temporal data, (vi) transfer learning, (vii) an improved theoretical understanding of DL systems, (viii) high barriers to entry, and (ix) training and optimizing the DL.Comment: 64 pages, 411 references. To appear in Journal of Applied Remote Sensin

    Geocoded data structures and their applications to Earth science investigations

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    A geocoded data structure is a means for digitally representing a geographically referenced map or image. The characteristics of representative cellular, linked, and hybrid geocoded data structures are reviewed. The data processing requirements of Earth science projects at the Goddard Space Flight Center and the basic tools of geographic data processing are described. Specific ways that new geocoded data structures can be used to adapt these tools to scientists' needs are presented. These include: expanding analysis and modeling capabilities; simplifying the merging of data sets from diverse sources; and saving computer storage space

    GIS SOFTWARE DEVELOPMENT: SUMMER INTERNSHIP WITH CLARK LABS

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    This paper describes my personal internship experience during the summer of 2014. I worked as a part-time student research assistant at Clark Labs and focused on the development of new modules for IDRISI GIS software. I created the new LANDSAT module for importing and preprocessing Landsat Archive imagery. I also created an option in the TassCap module for performing Landsat 8 Tasseled Cap transformation. Through collaboration with GIS and remote sensing professionals at Clark Labs, I successfully applied my geospatial knowledge to real-world software development works. This experience also sharpened the skills I learned at Clark University and was directly related to my career goals. I highly recommend this internship to future GISDE students who wish to apply their knowledge to programming GIS software that facilitates geographers’ understanding of the world
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