Ricco's Law
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Ricco's Law explains the visual relationship between a target area and target contrast required for detection. It is shown below
Ricco's Law is applicable for regions where the target being detected is unresolved. This region is variable based on the amount of background luminance. Ricco's Law is based on the fact that the 'Signal' of the target being detected is proportional to the threshold contrast multiplied by the area. Therefore, the contrast threshold required for detection is proportional to the signal to noise ratio multiplied by the noise divided by the area. This leads to the above equation.
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| This page uses content from the English-language version of Wikipedia. The original article was at Ricco's Law. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License. |
