TheDude wrote: * | Wed Nov 04, 2020 2:43 am |
Peregrinus, does that relate to
Schrödinger's cat at all? The part about adding things could/could distort what's actually there. It just came to mind.
In the sense that, if you are increasing/amplifying bits of the signal.. Once you observe it, it is altered in some way. so merely trying to isolate it would change it in some way.
In this way, what you observe would not be what is there, rather your altered version, you would then have to re-adjust it to compare it to other similar things, altered in different ways.
Going the route of not touching the source signal, beyond removing things, ie only lessening, not increasing.. you are changing the signal, however the aim is to leave the part you are looking for unaltered.
In this way, you could compare it to other instances fairly easily and quickly.
My thoughts keep bringing me back to saturation and lowpass/highpass/bandpass filters.
{think about this in relation to audio signals, amplitude, frequencies, harmonics... also video signals, how much is encoded in the signal for an individual pixel, not just colour, brightness, alphaness etc.}
e.g. think about how you would isolate a voice (or an instrument) from an audio recording containing many overlapping sounds. or an image of an object from a complex scene.
An example of this would be animals who have vision based on movement, effectively they are filtering out anything that did not change, leaving those things that did change, then processing them to figure out what is going on, what it was that moved and if they have to react to it.