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KITTI Odometry dataset中00-21系列的相机内参设置_kittiodomdataset

kittiodomdataset

一些声明

见data_odometry_calib文件夹中的calib.txt文件,其中P0表示左边灰度相机的3×4内参矩阵,P1表示右边灰度相机的3×4内参矩阵。依据这两个矩阵,求解 f x f_x fx f y f_y fy c x c_x cx c y c_y cy b b b

方法

以00系列中的calib.txt中的两个矩阵为例,求解 f x f_x fx f y f_y fy c x c_x cx c y c_y cy b b b
P0 =
[ 718.8560 0 607.1928 0 0 718.8560 185.2157 0 0 0 1 0 ] (1) \left[

718.85600607.192800718.8560185.215700010
\right]\tag{1} 718.8560000718.85600607.1928185.21571000(1)
P1=
[ 718.8560 0 607.1928 − 386.1448 0 718.8560 185.2157 0 0 0 1 0 ] (1) \left[
718.85600607.1928386.14480718.8560185.215700010
\right]\tag{1}
718.8560000718.85600607.1928185.21571386.144800(1)

f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 386.1448 / 718.8560 = 0.5372 b=386.1448/718.8560=0.5372 b=386.1448/718.8560=0.5372。其中 f x f_x fx c x c_x cx f y f_y fy c y c_y cy的单位都是像素,而 b b b的单位是米。

图像的宽度为1241个像素,图像的高度为376个像素!

00-21sequence的相机内参

  • 00sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 01sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 02sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 03sequence
    f x = 721.5377 f_x=721.5377 fx=721.5377 c x = 609.5593 c_x=609.5593 cx=609.5593 f y = 721.5377 f_y=721.5377 fy=721.5377 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 04sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 172.8540 c_y=172.8540 cy=172.8540 b = 0.5372 b=0.5372 b=0.5372
  • 05sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 06sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 07sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 08sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 09sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 10sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 11sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 12sequence
    f x = 707.0912 f_x=707.0912 fx=707.0912 c x = 601.8873 c_x=601.8873 cx=601.8873 f y = 707.0912 f_y=707.0912 fy=707.0912 c y = 183.1104 c_y=183.1104 cy=183.1104 b = 0.5372 b=0.5372 b=0.5372
  • 13sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 14sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 15sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 16sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 17sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 18sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 19sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 20sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
  • 21sequence
    f x = 718.8560 f_x=718.8560 fx=718.8560 c x = 607.1928 c_x=607.1928 cx=607.1928 f y = 718.8560 f_y=718.8560 fy=718.8560 c y = 185.2157 c_y=185.2157 cy=185.2157 b = 0.5372 b=0.5372 b=0.5372
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