Focal length and compression of space

Images taken with long telephoto lenses exhibit a characteristic perspective distortion known as compression of space. Objects that are actually far apart appear unusually close together, and observed texture gradients and optic flows impart a distorted sense of orientation and depth. An attempt is...

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Bibliographic Details
Main Author: Mobasseri, B.G.
Format: Conference Proceeding
Language:English
Subjects:
Cameras
Image coding
Image motion analysis
Image reconstruction
Layout
Lenses
Optical distortion
Optical imaging
Optical sensors
Shape
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Summary:Images taken with long telephoto lenses exhibit a characteristic perspective distortion known as compression of space. Objects that are actually far apart appear unusually close together, and observed texture gradients and optic flows impart a distorted sense of orientation and depth. An attempt is made to quantify the space compression. It is shown that only a full perspective model, rare in shape from texture literature for example, is able to compute the above effect.< >
ISSN:1063-6919
DOI:10.1109/CVPR.1993.341027