Journal ArticleDOI
Reliability of Human Visual Signal Detection in the Presence of Noise
Reads0
Chats0
TLDR
In this paper, the reliability of human detection of certain classes of signals of simple shape embedded in low-pass filtered white gaussian noise recorded on paper was compared with performance of an optimum matched filter detector which operated on the same set of data.Abstract:
This report is concerned with the reliability of human detection of certain classes of signals of simple shape embedded in low-pass filtered white gaussian noise recorded on paper. Results are compared with performance of an optimum matched filter detector which operated on the same set of data. The signal-to-noise ratio obtained at the output of such a filter can be used to predict the reliability of detection and the false alarm rate in subjects' performance. For signal-to-noise ratio greater than one, subjects make fewer errors (i.e., misses plus false alarms) than the optimum filter, and the difference is a monotonically decreasing function of the signal-to-noise ratio. Factors concerned with these two observations are discussed.read more
Citations
More filters
Book ChapterDOI
Electron microscopic methods in cellular and molecular biology
Journal ArticleDOI
Detection of neuroelectric signals from multiple data channels by optimum linear filter method
TL;DR: A general mathematical formulation for predicting achievable levels of detection of neuroelectric signals in associated background noise is provided for the case where such data are obtainable from multiple recording loci and zero lag correlation coefficients between electrical recordings from separate cortical loci is provided.
Journal ArticleDOI
Human visual signal detection by simultaneous observation through multiple channels: Experimental study of decision behavior
TL;DR: This study confirms previous results that the detection outcome from a single channel may be predicted from the maximum signal-to-noise ratio at the output of a filter matched to signal and also that Ss make fewer errors than the optimum matched filter detector.
References
More filters
Journal ArticleDOI
Spatial-frequency masking in vision: critical bands and spread of masking.
Charles F. Stromeyer,Bela Julesz +1 more
TL;DR: The experiments demonstrate that a grating is masked only by noise whose spatial frequencies are similar to the grating frequency, and provide further indication of the existence of channels in the visual system that are selectively tuned to different spatial frequencies.
Journal ArticleDOI
A Theoretical Comparison of the Visual, Aural, and Meter Reception of Pulsed Signals in the Presence of Noise
J. H. Van Vleck,David Middleton +1 more
TL;DR: In this paper, the relative sensitivity of the detection of signal pulses in the presence of noise was examined by observing an oscilloscope, by aural perception, in which one listens to the fundamental or a low harmonic of the pulse repetition frequency (PRF), and by a meter.
Journal ArticleDOI
Optimum Filters for the Detection of Signals in Noise
L. A. Zadeh,J. R. Ragazzini +1 more
TL;DR: In this article, an optimum predetection filter is defined as one which maximizes the distance between the signal and noise components of the output (subject to a constraint on the noise compgnent) in terms of a suitable distance function d(x, y).
Journal ArticleDOI
Application of optimum linear filter theory to the detection of cortical signals preceding facial movement in cat.
TL;DR: The ability to predict optimum detection levels, by the linear filter method, of cortical electrical signals related to the production of movements, may provide a basis for evaluating the merit of such signals in the design of prosthetic devices for motor control.