|
|
| .
| Kuroda, Kazuhiro
1 0 0 0
| , 9 1 0 0
nelo 6 | à (2)
—-Vx -W —Vz d
| cosû 0 sino 0
0 1 0 0
Ta —sinÜ 0 cos0 0 G)
0 0 0 1
Equation for perspective transformation matrix, which represents perspective projection of measured 3D points onto image
plane of video camera is given by Equation (4) . ;
1.0.0 0
T= AO 1 0 0 | (4)
rough | 0 0 1 1/p
E | 0. 0.0... 4
lapped | Where p is perspective parameter to be calibrated.
|
| By combining above four equation, the coordinate of mapped measured 3D point (X p, Y p) is expressed by Equations (5)
' com- | ;
| and (6).
point.
on (1). gt (Xu — Vx) cost — (Zu — Vz) sin 0) (5)
(Xy — Vx)sin0 4 (Zu — Vz)cos0 t p
|
3 Y, Vy)
Yp= gcns (6)
| (Xy — Vx)sin6 + (Zm — Vz) cos0 + p
m and
nd (3)
Therefore, information of pixel at (Xp, Y p) in video image is attributed to respective mapped measured 3D point.
|
International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B5. Amsterdam 2000. 469