Hi, I am a biomedical imaging and visualization researcher who investigates how the study of brain connectivity and machine perception can help advance the understanding of biologically inspired artificial intelligence.
Infinite Accuracy and Infinite Measurements
Limited Accuracy and Limited Measurements
2 Samples per second
6 Samples per second
10 Samples per second
sampling frequency > 2x signal frequency
guarantees perfect reconstruction
What does that mean? And how do we get the signal frequency?
What is the sampling rate here?
19/6000s = 0.0032 Hz
[104, 104, 104, 103, 103, 102, 101, 101, 100, 100, 99, 99, 98, 98, 98, 99, 99, 100, 100]
How to represent the data?
any signal can be decomposed into harmonic signal components
with circular frequency
many different waves combined
Frequency in images ~ level of detail
low pass filter
high pass filter
usually high frequency noise
60 Hz noise: electric humming around transformers
CS480 Lecture 04
By Daniel Haehn