Remote sensing measurements represented as a series of digital numbers the larger this number, the higher the radiometric resolution, and the sharper the imagery spectral bands and resolution for various sensors cimss. Spectral resolution is the number and size of bands in the electromagnetic spectrum that a remote sensing platform can capture. Pdf effects of remote sensor spatial resolution and data. Four types of resolutions are defined for the remote sensing systems. Principles of remote sensing is written to be primarily used as textbook for the in troductory module on. Manual interpretation and analysis dates back to the early beginnings of remote sensing for. The four types of resolutions spatial, spectral, temporal and radiometric are also discussed. Spatial resolution of passive sensors we will look at the. Image analysis is the science of interpreting speci. Multiframe superresolution of gaofen4 remote sensing images. Resolutions of remote sensing environmental data center. Pdf image resolution enhancement for remote sensing.
The presentation is about the basics of remote sensing. Spatial resolution of images acquired by satellite sensor systems is usually expressed in meters. A sensors various resolutions are very important characteristics. Impact of the spatial resolution of satellite remote sensing. The technology of modern remote sensing has a very long history, dating back to the end of the 19th century with the invention of the camera.
The presentation talks about its need and who uses remote sensing. Image characteristics and different resolutions in remote sensing duration. The ability to resolve, or separate, small details is one way of describing what we. Pdf we present a brief overview of recent image resolution enhancement algorithms with emphasis on remote sensing applications. Radiometric color depth spatial resolution describes how much detail in a photographic image is visible to the human eye. The process of remote sensing, its principles, platforms and sensors are discussed.
The remote sensing images can be blurred by the atmosphere, the optical system, relative motion, and pixel integration. An explanation and simple solution for correcting this undesired behaviour is. Degrading the spatial resolution of each satellite sensor for highly spa tially variable turbid waters led to variability in the tss concentrations of. A canada centre for remote sensing remote sensing tutorial. The overall psf is the successive convolution of all of the individual terms. The parameters that characterize a wave motion are wavelength. The next section details the 4 resolutions of remote sensing. Table of some satellite sensors and data providers. For example, we often speak of landsat as having 30 meter.
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