search

mgaoling / mpl_calibration_toolbox

An easy calibration toolbox for VECtor Benchmark
https://star-datasets.github.io/vector/calibration/
BSD 3-Clause Clear License
24 stars 3 forks source link

about focal length #3

Closed xingyi5166 closed 11 months ago

xingyi5166 commented 11 months ago

Hi, May I ask what is the focal length (f in pixels, not f_x or f_y), and baseline length (in meters) of your regular camera? Thanks!

mgaoling commented 11 months ago

While I'm not sure about the particular camera you're talking about, you can find out more information on this page. Simply select the sensor/lens you'd like to learn more about.

Regarding the focal length in pixels, I suggest examining the intrinsic calibration results, i.e. the K matrix.

xingyi5166 commented 11 months ago

While I'm not sure about the particular camera you're talking about, you can find out more information on this page. Simply select the sensor/lens you'd like to learn more about.

Regarding the focal length in pixels, I suggest examining the intrinsic calibration results, i.e. the K matrix.

Sorry for the confusion! Regarding the stereo camera https://star-datasets.github.io/vector/assets/yaml/left_regular_camera_intrinsic_results.yaml and https://star-datasets.github.io/vector/assets/yaml/right_regular_camera_intrinsic_results.yaml, could you give some details for the baseline length?

mgaoling commented 11 months ago

Please refer to this page and this page.

xingyi5166 commented 11 months ago

Thanks

Please refer to this page and this page.

Thanks for your more details! The baseline is the distance between two stereo cameras. May I ask how to get the transformation matrix from those two cameras?

mgaoling commented 11 months ago

The baseline is about 17cm. You can find the transformation in the Joint Camera Extrinsic Calibration section under the calibration page.