Exporting REALVIZ Ascii Camera 3D Tracks (.rz3)exportingREALVIZ Ascii Camera 3D Tracks

Exporting REALVIZ Ascii Camera 3D Tracks (.rz3)

Use the procedure described in the Exporting a project section. See Exporting a project. From the Save as type drop-down list, select REALVIZ Ascii Camera (.rz3).

MatchMover exports only the camera and static 3D tracks associated to the current sequence (contained in the current time).

NoteIf you have several sequences you must change the current time to export the associated camera of each sequence.

MatchMover creates an Ascii file as follows.

imageSequence "Sequence00"

{				720	576

f("\\Spirou\public\images\MatchMoving\sgi320.avi" )											b( 0 238 1 )			-even}

Camera

{0				F ( 943.095 )			Pr ( 1.06667 )			Pp ( 360 288 )			K ( 0 )

				Oc ( -42.4206 67.3594 -19.604 )

				Rot ( 0.793155 0.598043 -0.115111 -0.158493 0.38519 0.909125 0.588035 -0.702832 0.400301 )1

F ( 943.095 )			Pr ( 1.06667 )			Pp ( 360 288 )			K ( 0 )

				Oc ( -41.9334 67.8446 -19.764 )

				Rot ( 0.795385 0.594972 -0.115633 -0.157956 0.387665 0.908166 0.58516 -0.704077 0.402323 )

}PointTrack Track00 (4.79921 0.0732729 1.00537)

PointTrack Track01 (-0.00894661 0 0)

PointTrack Track02 (-0.00894661 1.37239 10.0013)

The label imageSequence contains the name of the sequence in the Project window.
The values 720 and 576 refer to the size of the image.
f( "\\Spirou\public\images\MatchMoving\sgi320.avi" ) gives the full path name of the sequence.
b( 0 238 1 ) refers to the begin, end and step values.
-even defines the type of interlace which can be Upper field first or Lower field first. The default value is no interlace if no type is specified.
Camera
The first line gives the frame number.
- F indicates the focal length in pixels, defined as focal length (mm) times image width (pixels)/film back width (mm).
- Pr indicates the pixel aspect ratio.
- Pp indicates the position of the principal point.
- K indicates the distortion value.
- Oc indicates the Camera position (X, Y, Z).
- Rot indicates the three lines of the Matrix of rotation. The last line of the Matrix, the last three coefficients, also represents the direction along which the camera is pointing, expressed with respect to the reference coordinate system.
- The remaining lines of code give the Point Track label and its X, Y and Z coordinates.

You can edit this file and re-import it into MatchMover.