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### Extrinsic.yml meanings

Hi, all,

I have run the stereo calibration example and gotten both intrinsic and extrinsic parameters of my stereo camera. I set the squareSize= 108.f since my chess board using 108 millimeter 8X6 squares. But I no ideal what correct unit the square size should be. And finally I got the rotation and translation matrix. R:[9.9971067186655571e-001, 1.0255094565610759e-002,-2.1757885732999915e-002, -1.0256469002886417e-002,9.9994739986591286e-001, 4.8425128267447104e-005, 2.1757237869562643e-002, 1.7474796307336661e-004,9.9976326801070092e-001] T: [ -2.1943586431950470e+002, 3.0918889737998665e+000,-3.3488303392429639e+000 ]

I measured and my basic line is around 213.05 mm. I think the first element of T, -2.1943586431950470e+002, represent the basic line length.Is it right? Could you guys share me reference showing the meanings of intrinsic and extrinsic parameters? Thanks!

 2 No.2 Revision Martin Peris 1742 ●10 ●23 http://blog.martinperi...

### Extrinsic.yml meanings

Hi, all,

I have run the stereo calibration example and gotten both intrinsic and extrinsic parameters of my stereo camera. I set the squareSize= 108.f since my chess board using 108 millimeter 8X6 squares. But I no ideal what correct unit the square size should be. And finally I got the rotation and translation matrix. matrix.

R:[9.9971067186655571e-001, 1.0255094565610759e-002,-2.1757885732999915e-002,
-1.0256469002886417e-002,9.9994739986591286e-001, 4.8425128267447104e-005,
2.1757237869562643e-002, 1.7474796307336661e-004,9.9976326801070092e-001]
T: [ -2.1943586431950470e+002, **-2.1943586431950470e+002**, 3.0918889737998665e+000,-3.3488303392429639e+000 ]]


I measured and my basic line is around 213.05 mm. I think the first element of T, -2.1943586431950470e+002, represent the basic line length.Is it right? Could you guys share me reference showing the meanings of intrinsic and extrinsic parameters? Thanks!