06-02-2013, 02:46 PM
THE DISCRETE HAAR WAVELET TRANSFORMATION
THE DISCRETE HAAR WAVELET.pdf (Size: 1.89 MB / Downloads: 65)
Your task: Send an approximation s (a list of numbers) of this data
via the internet to a colleague.
I In order to reduce transfer time, the length of your approximation
must be N/2.
I How do you suggest we do it?
Suppose now you were allowed to send extra data in addition to
the pair-wise averages list s.
The idea is to send a second list of data d so that the original list x
can be recovered from s and d.
How would you do it?
We can identify large changes in the the differences portion d of
the transform.
It is easier to quantize the data in this form.
The transform concentrates the signal’s energy in fewer values.
And the obvious answer: less digits!!
We will talk about the top three bullets in due time.
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