Regularization strategies for discontinuity-preserving optical flow methods

N Monzón, A Salgado, J Sanchez - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
The aim of this paper is to study several strategies for the preservation of flow discontinuities
in variational optical flow methods. We analyze the combination of robust functionals and …

Computing inverse optical flow

J Sánchez, A Salgado, N Monzón - Pattern Recognition Letters, 2015 - Elsevier
We propose four algorithms for computing the inverse optical flow between two images. We
assume that the forward optical flow has already been obtained. The forward and backward …

[PDF][PDF] Variational Temporal Optical Flow for Multi-exposure Video.

O Martorell, A Buades - VISIGRAPP (4: VISAPP), 2022 - pdfs.semanticscholar.org
High Dynamic Range (HDR) reconstruction for multi-exposure video sequences is a very
challenging task. One of its main steps is registration of input frames. We propose a novel …

Direct estimation of the backward flow

J Sánchez, A Salgado, N Monzón - International Conference on …, 2013 - scitepress.org
The aim of this work is to propose a new method for estimating the backward flow directly
from the optical flow. We assume that the optical flow has already been computed and we …

[PDF][PDF] Comparison of the optical flow quality for video denoising

NM Monzón López, J Sánchez - 2020 - accedacris.ulpgc.es
Video denoising techniques need to understand the motion present in the scenes. In the
literature, many strategies guide their temporal filters according to trajectories controlled by …

Accurate estimation of the objetct motion in image sequences

N Monzón López - 2017 - accedacris.ulpgc.es
The aim of this thesis is to contribute in the calculation of variational optical flow methods. Tis
is a basic topic in the field of computer vision that pursues the accurate estimation of the …

[HTML][HTML] Download source code

J Sánchez, A Salgado, N Monzón - webctim.ulpgc.es
Let I 1 (x) and I 2 (x) be two color images in a sequence, with x=(x, y), and h (x)=(u (x), v (x))
the vector field that establishes the correspondences between the pixels of the images. h (x) …

Discontinuity preserving in TV-L1 optical flow methods

NM Monzón López… - CTIM Technical …, 2014 - accedacris.ulpgc.es
We analyze the discontinuity preserving problem in TV-L1 optical flow methods. This type of
methods typically creates rounded effects at flow boundaries, which usually do not coincide …

Estimación del movimiento de objetos en secuencias de imágenes de intensidad y profundidad

NM Monzón López - 2013 - accedacris.ulpgc.es
The aim of this research work is to perform a system that uses optical flow for detecting and
monitoring one or more objects in a sequence of images, including depth ones, to design an …