Focal Length and Compression of Space

Abstract

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.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Cite

Text

Mobasseri. "Focal Length and Compression of Space." IEEE/CVF Conference on Computer Vision and Pattern Recognition, 1993. doi:10.1109/CVPR.1993.341027

Markdown

[Mobasseri. "Focal Length and Compression of Space." IEEE/CVF Conference on Computer Vision and Pattern Recognition, 1993.](https://mlanthology.org/cvpr/1993/mobasseri1993cvpr-focal/) doi:10.1109/CVPR.1993.341027

BibTeX

@inproceedings{mobasseri1993cvpr-focal,
  title     = {{Focal Length and Compression of Space}},
  author    = {Mobasseri, Bijan G.},
  booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  year      = {1993},
  pages     = {686-687},
  doi       = {10.1109/CVPR.1993.341027},
  url       = {https://mlanthology.org/cvpr/1993/mobasseri1993cvpr-focal/}
}