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Update Calibration.md

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Vladyslav Usenko 2019-04-16 08:14:11 +00:00
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doc/Calibration.md
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@ -35,7 +35,7 @@ The buttons in the GUI are located in the order which you should follow to calib
* `init_opt` initializes optimization and shows the projected points given the current calibration and camera poses. * `init_opt` initializes optimization and shows the projected points given the current calibration and camera poses.
* `optimize` runs an iteration of the optimization and visualizes the result. You should press this button until the error printed in the console output stops decreasing and the optimization converges. * `optimize` runs an iteration of the optimization and visualizes the result. You should press this button until the error printed in the console output stops decreasing and the optimization converges.
* `save_calib` saves the current calibration as `calibration.json` in the result folder. * `save_calib` saves the current calibration as `calibration.json` in the result folder.
* `compute_vign` **(Experimental)** computes a radially-symmetric vignetting for the cameras. For the algorithm to work, **the calibration pattern should be static (and camera moving around it) and have a constant lighting throughout the calibration sequence**. If you run `compute_vign` you should press `save_calib` afterwards. The png images with vignetting will also be stored in the result folder. * `compute_vign` **(Experimental)** computes a radially-symmetric vignetting for the cameras. For the algorithm to work, **the calibration pattern should be static (camera moving around it) and have a constant lighting throughout the calibration sequence**. If you run `compute_vign` you should press `save_calib` afterwards. The png images with vignetting will also be stored in the result folder.
You can also control the process using the following buttons: You can also control the process using the following buttons:
* `show_frame` slider to switch between the frames in the sequence. * `show_frame` slider to switch between the frames in the sequence.