Proceedings chapter
Open access

Figure-ground separation: evidence for asynchronous processing in visual perception?

ContributorsBurgi, Pierre-Yvesorcid
Presented at Bienne (Switzerland), October 10-11, 1991
Publication date1992

The performance of the human visual system in extracting noisy figures from a noisy background is astonishingly good. Even in situations of very poor contrast, boundaries emerge clearly. Conversely, typical edge detectors fail to give good results for such images. In an attempt to explain the discrepancies in these performances we have developed a neural network model relying on two assumptions, both of which are based on neurophysiological findings. Firstly, the processing of visual information is considered to be asynchronous: stimuli are delayed accordingly to their intensity. Secondly, emergent boundaries have the property of producing coherent responses corresponding to the (near)-simultaneous responses of cells in the cortical orientation columns. Results show that such neural network can indeed benefit from the asynchrony when treating images with ratio signal-to-noise particularly low.

  • asnychrony
  • computer vision
  • figure-ground detection
Citation (ISO format)
BURGI, Pierre-Yves. Figure-ground separation: evidence for asynchronous processing in visual perception? In: Proceedings: Third Annual Meeting of the Swiss Group lor Artificial lntelligence and Cognitive Science SGAlCO′91. Bienne (Switzerland). [s.l.] : [s.n.], 1992. p. 36–48.
Main files (1)
Proceedings chapter (Published version)
  • PID : unige:155372

Technical informations

Creation10/13/2021 11:44:00 AM
First validation10/13/2021 11:44:00 AM
Update time03/16/2023 1:29:40 AM
Status update03/16/2023 1:29:40 AM
Last indexation10/19/2023 4:28:07 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack