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">></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.1992.223242Markdown
[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.1992.223242BibTeX
@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/}
}