Selecting reference and keyframes

Note that if the keyframes are not locked this step is automatically launched when running the solver. See Reference frames.

Once all the required keyframes are selected, user settings are applied to fill the gaps, with the non-automatic keyframes.

At this point you can run the camera solving process using the reference and keyframes chosen by MatchMover, or you can choose your own by manually editing them.

If you make any manual changes and want to return to automatic initialization, just click the lock icon

or relaunch the Select keyframes command. Manual initialization is designed for an advanced user.

Under most circumstances the automatic initialization option is sufficient as MatchMover suggests optimum reference and keyframes. If you are not satisfied with the suggestion, you can edit the results.

Editing reference and keyframes

In complex sequences involving lots of camera movement, you may decide to choose your own reference frames and keyframes. If so, you must use the manual initialization option before you change the reference or the keyframes.

Method 1

Select the Image Sequence folder in the Project window.
In the Parameters Window in the Reference Frames tab, enter the frame number for the first or second reference frame.
Use the Enter key to validate the value.
In the Keyframes tab, the right box shows the list of all the frames of the sequence. The left box shows the list of all the current keyframes.
Select the frame(s) that you want to use as keyframes from the right box and add them to the keyframe list using the left arrow button.
To remove a keyframe, select it from the keyframe list and use the right arrow button.

Method 2

From the right pane of the Track window:

Do one of the following:
- Select 3D Tracking > Set Current Frame.
- Right-click the required frame in the right pane of the Track window and select Set Current Frame from the pop-up menu.
Select either First Reference to set the current frame as the first reference, Second Reference to set the current frame as the first reference, or Key to set the current frame as a keyframe.

The Track window updates automatically.

TipTo create or delete a keyframe quickly, use the shortcut Ctrl+K, which toggles between the two actions.

NoteIf you select non-valid reference frames, MatchMover warns you that camera solving is not possible during the solving process.

After editing reference or keyframes, if you change the 2D data (for example, you add a new point track), you should either re-select the keyframes so that MatchMover can incorporate this new data in the choice of reference frames and keyframes, or run the camera solver without reselecting frames. MatchMover then uses the current reference and keyframes.