ML Anthology

Pyramid Based Depth from Focus

Trevor Darrell, Kwangyoen Wohn
CVPR 1988 pp. 504-509
doi:10.1109/CVPR.1988.196282 /cvpr/1988/darrell1988cvpr-pyramid/

Abstract

A method is presented for depth recovery through the analysis of scene sharpness across changing focus position. Modeling a defocused image as the application of a low pass-filter on a properly focused image of the same scene, the authors can compare the high spatial frequency content of regions in each image and determine the correct focus position. Recovering depth in this manner is inherently a local operation, and can be done efficiently using a pipelined image processor. Laplacian and Gaussian pyramids are used to calculate maps which are collected and compared to find the focus position that maximizes high spatial frequencies for each region.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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Cite

Text

Darrell and Wohn. "Pyramid Based Depth from Focus." IEEE/CVF Conference on Computer Vision and Pattern Recognition, 1988. doi:10.1109/CVPR.1988.196282

Markdown

[Darrell and Wohn. "Pyramid Based Depth from Focus." IEEE/CVF Conference on Computer Vision and Pattern Recognition, 1988.](https://mlanthology.org/cvpr/1988/darrell1988cvpr-pyramid/) doi:10.1109/CVPR.1988.196282

BibTeX

@inproceedings{darrell1988cvpr-pyramid,
  title     = {{Pyramid Based Depth from Focus}},
  author    = {Darrell, Trevor and Wohn, Kwangyoen},
  booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  year      = {1988},
  pages     = {504-509},
  doi       = {10.1109/CVPR.1988.196282},
  url       = {https://mlanthology.org/cvpr/1988/darrell1988cvpr-pyramid/}
}