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  2. Land cover maps - Wikipedia

    en.wikipedia.org/wiki/Land_cover_maps

    Remote sensing satellite image processing. [3] This cost-efficient approach employs several techniques for image pre-processing and processing to accurately map land cover patterns. These techniques detect changes at various spatial scales following a series of machine learning simulations and statistical applications.

  3. Image registration - Wikipedia

    en.wikipedia.org/wiki/Image_registration

    In remote sensing applications where a digital image pixel may represent several kilometers of spatial distance (such as NASA's LANDSAT imagery), an uncertain image registration can mean that a solution could be several kilometers from ground truth. Several notable papers have attempted to quantify uncertainty in image registration in order to ...

  4. Remote sensing - Wikipedia

    en.wikipedia.org/wiki/Remote_sensing

    Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation. The term is applied especially to acquiring information about Earth and other planets .

  5. Georeferencing - Wikipedia

    en.wikipedia.org/wiki/Georeferencing

    Several types of functions are available in most GIS and remote sensing software for georeferencing. [7] As the simplest type of two-dimensional curve is a straight line, so the simplest form of coordinate transformation is a linear transformation, the most common type being the affine transformation: [8]: 171

  6. List of datasets in computer vision and image processing

    en.wikipedia.org/wiki/List_of_datasets_in...

    6 different real multiple choice-based exams (735 answer sheets and 33,540 answer boxes) to evaluate computer vision techniques and systems developed for multiple choice test assessment systems. None 735 answer sheets and 33,540 answer boxes Images and .mat file labels Development of multiple choice test assessment systems 2017 [204] [205]

  7. Atmospheric correction - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_correction

    Examples of atmospheric correction techniques for multispectral remote-sensing images, ordered chronologically to show the historical development of atmospheric correction methods in remote-sensing. Sensor Approach MSS: band-to-band regression [5] MSS: all-band spectral covariance [6] airborne MSS: band-to-band regression [7] AVHRR: iterative ...

  8. Edge detection - Wikipedia

    en.wikipedia.org/wiki/Edge_detection

    As a pre-processing step to edge detection, a smoothing stage, typically Gaussian smoothing, is almost always applied (see also noise reduction). The edge detection methods that have been published mainly differ in the types of smoothing filters that are applied and the way the measures of edge strength are computed.

  9. Contextual image classification - Wikipedia

    en.wikipedia.org/wiki/Contextual_image...

    The most probable label is assigned to these regions. However, there is a drawback of this method. The small regions also can be formed by correct regions rather than noise, and in this case the method is actually making the classification worse. This approach is widely used in remote sensing applications.