![]() ![]() It is important to recognize the source of the internal and external error and whether it is systematic (predictable) or non-systematic. Normally the remote sensing image contains internal and external errors. Internal and External Errors During the Collection of Remote Sensing Image Geometrically corrected imagery can be used to extract accurate distance, polygon area, and direction (bearing) information. This allows remote sensing–derived information to be related to other thematic data in geographic information systems (GIS) or spatial decision support systems (SDSS). It is usually necessary to pre-process the remotely sensed data and remove the geometric distortion so that individual picture elements are in their proper planimetric (x, y) map locations. Here in this discussion, we are going to learn about geometric corrections. The collected remote sensed data firstly required the operation of pre-processing which includes radiometric corrections and geometric corrections. Active remote sensing ( Microwave Remote Sensing) and 2). Remote sensing can be classified into two major forms 1). In general, it may define as a technique of gathering data of the surface of the earth from a distance with a sensor mounted on a moving platform. Remote sensing is the science of collecting information about any object on a surface from a well-defined distance with a proper sensor. Recommanded Books for the Detail Study of Geometric Correction. ![]() Method of examining the Accuracy of geometrically corrected Imagery.Different Types of Geometric Correction Techniques.External Errors in Remote Sensed Imagery.Internal Errors in Remote Sensed Imagery.Internal and External Errors During the Collection of Remote Sensing Image. ![]()
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