White Noise in A Spatial Context
While it is usually applied in the context of frequency domain signals, the term white noise is also commonly applied to a noise signal in the spatial domain. In this case, it has an auto correlation which can be represented by a delta function over the relevant space dimensions. The signal is then "white" in the spatial frequency domain (this is equally true for signals in the angular frequency domain, e.g., the distribution of a signal across all angles in the night sky).
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Famous quotes containing the words white, noise and/or context:
“Once in a while, God sends a good white person my way, even to this day. I think it’s God’s way of keeping me from becoming too mean. And when he sends a nice one to me, then I have to eat crow. And honey, crow is a tough old bird to eat, let me tell you.”
—Annie Elizabeth Delany (b. 1891)
“With the noise of the mourning of the Swattish nation!
Fallen is at length
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Dead lies the great Ahkoond,
The great Ahkoond of Swat
Is not!”
—George Thomas Lanigan (1845–1886)
“Among the most valuable but least appreciated experiences parenthood can provide are the opportunities it offers for exploring, reliving, and resolving one’s own childhood problems in the context of one’s relation to one’s child.”
—Bruno Bettelheim (20th century)