Inconsistent calibration matrix in TUM-RGBD dataset

[C-H-Chien]

Describe the bug
After downloading fr1_desk dataset, its calibration_matrix.txt file shows that the calibration matrix is the one from the freiburg3 catalog of TUM-RGBD benchmark dataset.

To Reproduce
Steps to reproduce the behavior:

1. Go to dataset and download fr1_desk.zip
2. Unzip the dataset and open calibration_matrix.txt
3. You will see the calibration matrix that is not from the freiburg3 catalog instead of frieburg1.

Expected behavior
The calibration matrix should be fx = 517.3, fy = 516.5, cx = 318.6, cy = 255.3