Use this tag for questions related to the process of adjusting the output or indication on a measurement instrument.
Questions tagged [calibration]
443 questions
-1
votes
0 answers
Normalize the non-equidistant high frequency data into equidistant time
I have the dataset of cryptocurrency price that you can check from https://support.kraken.com/hc/en-us/articles/360047543791-Downloadable-historical-market-data-time-and-sales (I do not post a typical data here because you can the data there…
sehne
- 1
- 2
-1
votes
0 answers
How can I get the Hosmer Lemeshow goodness of fit statistics from riskRegression::FGR() competing risk model object?
Below is some simulated data. I would like some help in
a) Plotting observed vs. predicted risk by 3 quantile groups Q1-Q3 and then run H-L test to report Chi squared statistic and p-value for goodness of fit for the subdistribution model.
b)…
Mahim
- 11
- 3
-1
votes
1 answer
DIALOGUE INC PenMount USB touchscreen miscalibration
I have a problem with my PenMount USB touchscreen in Ubuntu 22.04 LTS.
From the center (where it is precise) to the sides, the touchscreen becomes increasingly imprecise (both in X and Y directions). So the mouse pointer never reaches the edges by…
Andreas
- 1
- 3
-1
votes
1 answer
Questions about the parameters T and t in the stereoCalibrate function and recoverPose function in Opnecv
I want to verify the rotation matrix and translation vector of the intrinsic matrix factorization calculated by SFM with the rotation matrix and translation vector calculated in the binocular calibration with two cameras.
`
…
JunWen Si
- 1
- 1
-1
votes
1 answer
How I can get another camera extrinsic parameters from first camera?
I try to do multi camera calibration.
In my situation ultimately I want to obtain second camera's extrinsic parameters or it's projection matrix from first camera's parameters (intrinsic and extrinsic).
I fix two cameras in rig and their distance…
홍명표
- 1
-1
votes
2 answers
Can you copy over macbook screen color calibration profiles? Spyder3Pro
I've bought an 11" and a 13" macbook air and borrowing a spyder3pro from my friend to calibrate the screens. I am trying out the macbook air's and returning one.
I'd like to calibrate both the screens and then also my home external lcd screen and my…
Spawn
- 1
- 1
-1
votes
1 answer
image calibration manually with transformation matrices from OpenCV
I need to understand that how calibration works for cameras. I do not have basics good enough. Can someone please help me in understanding that how can I apply calibration data to an image taken with a camera for which I already have the calibration…
SumitM
- 1