Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Spatio-temporal motion estimation using the Wigner-Ville distribution and the Hough transform
Year:2007
Research Areas
  • Electronics engineering
Information
Abstract
There is a lot of evidence that biological visual systems devote considerable resources to the processing of motion. In the mammalian visual system, motion analysis constitutes a key element for the perception of objects in our environment. Thus, computational approaches to motion estimation can be inspired by our knowledge of biological systems, providing potential and efficient models to be used in many applications. Many neurophysiological studies have shown that the well-organized cells in V1 exhibit spatial-frequency selectivity for moving and still sinusoidal gratings. Visual stimuli are processed in parallel by exploring data via spatial spatial-frequency channels. Thus, we present a new framework for optic flow estimation based on a spatiotemporal/feature detection approach. The method relies on the computation of the Wigner - Ville distribution of the sequences followed by a Hough transform for detecting the motion (eg Kawakami and Okamoto, 1996 Vision Research 36 117 - 147). Experimental results have been shown to be accurate for detecting motion at edges and robust to noise degradations. A comparison with variational techniques is presented.
International
Si
JCR
Si
Title
PERCEPTION
ISBN
0301-0066
Impact factor JCR
1,617
Impact info
Volume
36
Journal number
0
From page
214
To page
214
Month
SIN MES
Ranking
Participants
  • autor: E. Gil (Instituto Optica-CSIC)
  • autor: G. Cristobal (Instituto Optica-CSIC)
  • Autor: Andres de Santos Lleo (UPM)
  • autor: N. Carranza-Herrezuelo (Instituto Optica-CSIC)
  • Autor: Maria Jesus Ledesma Carbayo (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tecnología de imágenes biomédicas
  • Departamento: Ingeniería Electrónica
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