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682 Chapter 12: Animation
error display also interactively updates as you
nudge tracker gizmos in Live Camera Match
mode, showing the current maximum match
distance for the camera; see Movie Stepper Rollout
(page 2–676).
Note that this error might b e exag gerated when
you employ match point weighting, as this tends to
distribute the errors toward the nonweight points.
Show Errors—Opens a text window containing a
list of the maximum errors for each of the m atched
frames, s o you can look over the w hole set of
match frames and ident ify which frames to check.
Camer a Tra cker : M ove S moothing
Rollout
Utilities panel > Utilities rollout > More button > Utilities
dialog > Camera Tracker > Move Smoothing rollout
Because the match-move algorithm is not
always exact and is highly susceptible to field
measurement error or feature tracking errors, and
becausethematchforeachframeiscomputed
independently, the results can be "noisy",
particularly if field of view is estimated. In
match-move situations where the real camera
performs smo oth moves, it m ight be useful to filter
the match results to eliminate this noise.
You use the Mov e Smoothing rollout to control
and perform these s moothing operations after a
match has been created.
Interfa ce
Channel To Smooth group
Letsyouchoosewhichparameterorsetof
parameters to smooth. You can choose to smooth
the entire Rotation or all the Position tracks at
once, or you can smooth individual parameters
or axes.
Rotation—Pan, Tilt, and Roll.
Posit ion—Dolly, Truck-H, and Truck-V.
FOV —Camera FOV (field-of-view).
Pan —Rotation about the local camera Z axis.
Tilt—Rotation about the local camera X axis.
Roll—Rotation about the local camera Y axis.
Dolly—Movement along the loca l camera Y axis.
Tru ck-H—Movement a long the lo ca l camera X axis.
Tru ck-V—Movement along t he local c amera Z axis.