Computation of component image velocity from local phase information
International Journal of Computer Vision
Performance of optical flow techniques
International Journal of Computer Vision
Robust computation of optical flow in a multi-scale differential framework
International Journal of Computer Vision
Motion Determination in Space-Time Images
ECCV '90 Proceedings of the First European Conference on Computer Vision
Robust Optical Flow Estimation
ICIIS '99 Proceedings of the 1999 International Conference on Information Intelligence and Systems
ISCGAV'08 Proceedings of the 8th conference on Signal processing, computational geometry and artificial vision
Optical flow estimation from monogenic phase
IWCM'04 Proceedings of the 1st international conference on Complex motion
Pseudo-real image sequence generator for optical flow computations
SCIA'07 Proceedings of the 15th Scandinavian conference on Image analysis
IEEE Transactions on Signal Processing
Fast IIR Isotropic 2-D Complex Gabor Filters With Boundary Initialization
IEEE Transactions on Image Processing
An Optimal Nonorthogonal Separation of the Anisotropic Gaussian Convolution Filter
IEEE Transactions on Image Processing
A phase-based approach to the estimation of the optical flow field using spatial filtering
IEEE Transactions on Neural Networks
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The paper is focused on the computation of optical flow from time-lapse 2D images acquired from fluorescence optical microscope. The Heeger's traditional established method based on spatio-temporal filtering is adopted and modified in order to solve issues that arose from this sort of image data. In particular, a scheme for effective and fast computations of complex Gabor convolutions is used. The filter tuning is changed to better support the detection of movement. The least squares fitting of the original method is also revised. A parametric study was conducted to assess optimal parameters. With optimal parameters, the proposed method showed lower average angular errors than the original. C++ implementation is available on the author's web pages.