Multiple Motions from Instantaneous Frequency

Abstract

The measurement of multiple velocities using phase-based methods is discussed. In particular, phase gradients (instantaneous frequency) from different bandpass channels (quadrature filter outputs) are used to estimate multiple image velocities in a single neighborhood. The approach is similar to that of M. Shizawa and K. Mase (1990) in which nth-order differential operators are required to compute n simultaneous velocity estimates. However, to use instantaneous frequency, the output of each channel must be differentiated only once.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Cite

Text

Langley et al. "Multiple Motions from Instantaneous Frequency." IEEE/CVF Conference on Computer Vision and Pattern Recognition, 1992. doi:10.1109/CVPR.1992.223242

Markdown

[Langley et al. "Multiple Motions from Instantaneous Frequency." IEEE/CVF Conference on Computer Vision and Pattern Recognition, 1992.](https://mlanthology.org/cvpr/1992/langley1992cvpr-multiple/) doi:10.1109/CVPR.1992.223242

BibTeX

@inproceedings{langley1992cvpr-multiple,
  title     = {{Multiple Motions from Instantaneous Frequency}},
  author    = {Langley, Keith and Fleet, David J. and Atherton, Tim J.},
  booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  year      = {1992},
  pages     = {846-849},
  doi       = {10.1109/CVPR.1992.223242},
  url       = {https://mlanthology.org/cvpr/1992/langley1992cvpr-multiple/}
}