Thursday, January 23, 2020

computer vision - camera calibration: why chessboards?


Chessboards are very frequently used for camera calibration, this website also talks a bit about why: wiki. One of the reasons is, that chessboards define many natural interest points. Now my (very simple?) question: Why don't we just use a white board with black dots on it instead of the checkerboard pattern where we first need to detect the corner points? I believe the black dots would be even easier to find...




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digital communications - Understanding the Matched Filter

I have a question about matched filtering. Does the matched filter maximise the SNR at the moment of decision only? As far as I understand, ...