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On the Perception of Dotted Lines

N. Kiryati, O. Henricsson and L. Rosenthaler
BIWI-TR-137, 1992
Institute for Communications Technology, Image Science Laboratory


This paper is concerned with psychophysical aspects of detecting of dotted lines embedded in background noise. The problem has already been studied by several authors. In particular, Uttal discovered that equal dot spacing within the dotted line enhances its detectability, and developed an autocorrelation theory for the detection of dotted forms. To test the theory, we designed a psychophysical experiment in which a line with irregular dot spacing had to be detected in noise with certain correlation properties. The results indicate that the autocorrelation theory cannot predict the detectability of the target line.

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  author = {N. Kiryati and O. Henricsson and L. Rosenthaler},
  title = {On the Perception of Dotted Lines},
  year = {1992},
  number = {BIWI-TR-137},
  institution = {Institute for Communications Technology, Image Science Laboratory},
  keywords = {neuro vision,perceptual,shape}