Search results
Results From The WOW.Com Content Network
The liability-threshold model is a threshold model of categorical (usually binary) outcomes in which a large number of variables are summed to yield an overall 'liability' score; the observed outcome is determined by whether the latent score is smaller or larger than the threshold. The liability-threshold model is frequently employed in ...
The simplest thresholding methods replace each pixel in an image with a black pixel if the image intensity , is less than a fixed value called the threshold , or a white pixel if the pixel intensity is greater than that threshold. In the example image on the right, this results in the dark tree becoming completely black, and the bright snow ...
An example of absolute threshold of hearing would be hearing a watch ticking twenty feet (six metres) away from a subject in a quiet room. [14] The threshold of hearing is generally reported as the RMS sound pressure of 20 μPa (micropascals) = 2×10 −5 pascal (Pa).
This threshold is determined by minimizing intra-class intensity variance, or equivalently, by maximizing inter-class variance. [2] Otsu's method is a one-dimensional discrete analogue of Fisher's discriminant analysis , is related to Jenks optimization method , and is equivalent to a globally optimal k-means [ 3 ] performed on the intensity ...
In the branch of experimental psychology focused on sense, sensation, and perception, which is called psychophysics, a just-noticeable difference or JND is the amount something must be changed in order for a difference to be noticeable, detectable at least half the time. [1]
In psychophysics, sensory threshold is the weakest stimulus that an organism can sense. Unless otherwise indicated, it is usually defined as the weakest stimulus that can be detected half the time, for example, as indicated by a point on a probability curve. [1] Methods have been developed to measure thresholds in any of the senses.
The absolute threshold of hearing (ATH), also known as the absolute hearing threshold or auditory threshold, is the minimum sound level of a pure tone that an average human ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the organism.
Cyprus only has 6 MEPs, raising the natural threshold. An extreme example of this was in the 2004 EU Parliament elections, where For Europe won 36,112 votes (10.80%) and EDEK won 36,075 votes (10.79%); despite both parties crossing the threshold by a high margin and a difference of only 37 votes, only "For Europe" returned an MEP to the ...