Another calibration question...

[antithing]

Hi, sorry to bother you again. I have found a multi-camera calibration toolbox, that gives me the following result:

Extrinsics:

Camera #1 :
1  0  0  0
0  1  0  0
0  0  1  0
0  0  0  1

Camera #2 :

 0.4609181  -0.009186284    -0.8873951     -303.5744
0.03479596     0.9993646   0.007727831      23.35298
 0.8867603   -0.03443966     0.4609448     -163.4985
         0             0             0             1

Camera #3 :

 -0.7048325     0.1634035     0.6902974      333.0892
-0.02166609     0.9676953      -0.25119     -86.11362
 -0.7090429    -0.1920029    -0.6785227      -465.258
          0             0             0             1

Camera #4 :

  0.5077068    -0.0381636     0.8606842      375.7625
-0.08449859     0.9919959    0.09383074     -4.202368
 -0.8573761    -0.1203651     0.5004183     -113.0211
          0             0             0             1

Camera #5 :

-0.748888   -0.05602026    -0.6603246     -143.0585
0.1751792     0.9442421    -0.2787815     -114.4791
0.6391237    -0.3244512    -0.6973179      -515.224
        0             0             0             1

In the file MultiCamSys_Calibration.yaml, the content is:

`# camera back CameraSystem.cam1_1: -0.0238361786473007 #r1 CameraSystem.cam1_2: -2.05998171167958 #r2 CameraSystem.cam1_3: 0.695126790868671 #r3 CameraSystem.cam1_4: -0.140202124607334 #t1 CameraSystem.cam1_5: 0.0219677971160655 #t2 CameraSystem.cam1_6: -0.0226322662838432 #t3

camera right

CameraSystem.cam2_1: -0.0103943566650926 #r1 CameraSystem.cam2_2: 1.12505249943085 #r2 CameraSystem.cam2_3: -0.402901183146028 #r3 CameraSystem.cam2_4: 0.108753418890423 #t1 CameraSystem.cam2_5: 0.0636197216520153 #t2 CameraSystem.cam2_6: 0.0657911760105832 #t3

camera left

CameraSystem.cam3_1: 0 #r1 CameraSystem.cam3_2: 0 #r2 CameraSystem.cam3_3: 0 #r3 CameraSystem.cam3_4: -0.00157612288268783 #t1 CameraSystem.cam3_5: 0.103615531247527 #t2 CameraSystem.cam3_6: 0.201416323496156 #t3`

I can just add the translation values from my extrinsic matrices, but what are the #r values? Radians?

Thank you again! (the toolbox, in case you are interested, is: https://sites.google.com/site/prclibo/toolbox).

[LuSiYing]

I guess you should use function hom2cayley in include/misc.h to transform a 4x4 matrix to a 6x1 vector which represents (r1, r2, r3, t1, t2, t3)

[antithing]

Thank you! That is exactly what I need.