Advertisement

Computational Cortical Cell Models for Continuity and Texture

  • Luís M. Santos
  • J. M. Hans du Buf
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2525)

Abstract

Area V1 and higher areas in the visual cortex contain many feature extraction engines that serve to build a symbolic image representation. In this paper we present models of cells that complement a multiscale line and edge extraction. After reviewing a frontend that comprises Gabor filters (simple cells), bar and grating cells, we introduce a bar cell grouping for completing occluded curvilinear structures (snakes), as well as a grating cell grouping for coding periodic textures with different complexities.

Keywords

Perceptual grouping cortical cells snakes textures 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Heitger, F. et al.: Simulation of neural contour mechanisms: representing anomalous contours, Image and Vision Computing 16 (1998) 407–421.CrossRefGoogle Scholar
  2. 2.
    Petkov, N., Kruizinga, P.: Computational models of visual neurons specialised in the detection of periodic and aperiodic oriented visual stimuli: bar and grating cells, Biol. Cybern. 76 (1997) 83–96.CrossRefzbMATHGoogle Scholar
  3. 3.
    Santos, L., du Buf, H.: Improved grating and bar cell models in diatom analysis, Image and Vision Computing (2001) (to appear).Google Scholar
  4. 4.
    von der Heydt, R., Peterhans, E., Dürsteler, M.: Periodic-pattern-selective cells in monkey visual cortex, J. of Neuroscience 12 (1997) 83–96.Google Scholar
  5. 5.
    Schiller, P. H., Sandell, J. H., Maunsell, J. H. R.: The functions of the ON and OFF channels of the visual system, Nature 32 (1986) 824–825.CrossRefGoogle Scholar
  6. 6.
    Santos, L. M., du Buf, H.: Improved grating and bar cell models in diatom analysis, Proc. 7th Neural Computation and PsychologyWorkshop: Connectionist Models of Cognition and Perception, John A. Bullinaria & Will Lowe (eds), World Scientific, Singapore (2002).Google Scholar
  7. 7.
    Jones, J., Palmer, A.: An evaluation of the two-dimensional Gabor filter model of simple receptive fields in cat striate cortex, J. Neurophysiol. 58 (1987) 1233–1258.Google Scholar
  8. 8.
    Grossberg, S.: How does the cerebral cortex work? Learning, attention and grouping by the laminar circuits of visual cortex, Spatial Vision 12 (1999) 163–186.CrossRefGoogle Scholar
  9. 9.
    Field, D. J., Hayes, A., Hess, R. F.: Contour integration by the human visual system: evidence for a local “association field,” Vision Res., 33 (1993) 173–193.CrossRefGoogle Scholar
  10. 10.
    Kass, M., Witkin, A., Terzopoulos, D.: Snakes—Active contour models. Int. Journal of Computer Vision, 1(4) (1987) 321–331.CrossRefGoogle Scholar
  11. 11.
    Xu, C., Prince, J. L.: Snakes, Shapes, and Gradient Vector Flow, IEEE Transactions on Image Processing, (1998) 359–369.Google Scholar
  12. 12.
    Sonka, M., Hlavac, V., Boyle, R.: Image Processing, Analysis, and Machine Vision, PWS, second edition (1998) Chapter 5.Google Scholar
  13. 13.
    Puzicha, J.: Multiscale annealing for grouping, segmentation and image quantization, PhD Thesis, Bonn (1999).Google Scholar
  14. 14.
    du Buf, J. M. H.: Abstract processes in texture discrimination, Spatial Vision, 6 (1992) 221–242.CrossRefGoogle Scholar
  15. 15.
    du Buf, J. M. H., Bigün, J.: N-folded symmetries by complex moments in Gabor space and their application to unsupervised texture segmentation, IEEE Trans. Pat. Analysis and Machine Intel., 16:1 (1994) 80–87.CrossRefGoogle Scholar
  16. 16.
    Gallant, J. L., Braun, J., Van Essen, D. C.: Selectivity for polar, hyperbolic, and Cartesian gratings in macaque visual cortex. Science, 259 (1993) 100–103.CrossRefGoogle Scholar
  17. 17.
    du Buf, J. M. H., Heitger, F.: A neural network for detecting symmetry orders, Proc. 7th ICIAP, Bari (Italy): Progress in Image Analysis III, S. Impedovo (ed.) World Scientific, 72 (1994) 669–672.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Luís M. Santos
    • 1
  • J. M. Hans du Buf
    • 1
  1. 1.Vision LaboratoryUniversity of AlgarveFaroPortugal

Personalised recommendations