Surveying
The want of correspondence in stereo-photographs

Is a good property
Is minimum when θ is 3°
Is a function of tilt
Is not affected by the change of flying height between photographs

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Surveying
Homologous points are

Plumb points of stereo pair of photographs
Nodal points of the camera lens
Opposite corners of a photograph
Corresponding points on the ground and photograph

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Surveying
Bowditch rule is applied to

an open traverse for graphical adjustment
determine the effect of local attraction
None of these
a closed traverse for adjustment of closing error

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