Close Range Photogrammetry is the reconstruction of object simultaneously from several images. After that different perspective are taken from those taken images. And the best possible perspective is used to ensure suitable geometry of intersecting rays. Close Range Photogrammetry is reconstructed from rays where the free stationed images are in objects space. In Close Range Photogrammetry the factors that are responsible for the estimation of some common processes called ‘bundle of adjustment’ are-
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As we all know that photogrammetry is the best used measurement tool, close range photogrammetry is also gaining its importance with a fast pace. Some fields where this techniques are used very frequently are –
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Some other common calculations, where Close Range Photogrammetry is often used are as follows :
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Close Range Photogrammetric Techniques offer measurement of large objects having a diameter from 1 to 300 meters. In Close Range Photogrammetry images are generally taken from a lifting or scaffolding platform. Under this constraint or
circumstances there are two important points regarding camera that should be taken care of. These are –
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In Close Range Photogrammetry mainly there are four types of perspective images. These are _
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Elements of Close Range Photogrammetry are –
2D Conformal Projection: it is divided into
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General 2D Transformation :
In the image plane, non-uniform scaling in the X and Y directions as well non-orthogonal rotations, together with a translation of the origin define an affine 2D transform. More general 2D transform are expressed using polynomials of varying degrees.
There are some other factors also which influences the the Close Range Photogrammetry. These are –
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Thus it can be concluded that though Close Range Photogrammetry is a very complected technique which is very useful for various purposes. With the technological development in can be said that more improved method will come to solve more complicated techniques.