Differential D2260 Diff 7514 manual/editors/movie_clip_editor/tracking/clip/properties.rst

Changeset View

Standalone View

manual/editors/movie_clip_editor/tracking/clip/properties.rst

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	so a high contrast between the feature and its background yields more accurate tracking.	so a high contrast between the feature and its background yields more accurate tracking.
	In such cases disabling some color channels can help.	In such cases disabling some color channels can help.

		When several tracks are used for 3D camera reconstruction or for 2D stabilization, it is possible
		to assign a reduced weight to some tracks to control their influence on the solution result.
		The Weight parameter is used for 3D reconstruction, while the Stab Weight parameter is used
		to control 2D stabilization. This parameter can (and often need to be) animated.

	The last thing is custom color, and the preset for it.	The last thing is custom color, and the preset for it.
	This setting overrides the default marker color used in the clip editor and 3D View,	This setting overrides the default marker color used in the clip editor and 3D View,
	and it helps to distinguish different type of features (for example,	and it helps to distinguish different type of features (for example,
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	Manual Calibration	Manual Calibration
	Applies the distortion model for grease pencil strokes (available in distortion mode only).	Applies the distortion model for grease pencil strokes (available in distortion mode only).
	This option also helps to perform manual calibration. A more detailed description of this process will be added later.	This option also helps to perform manual calibration. A more detailed description of this process will be added later.
	Stable	Display Stabilization
	This option makes the displayed frame be affected by the 2D stabilization settings (available in reconstruction mode only).	This option makes the displayed frame be affected by the 2D stabilization settings (available in reconstruction mode only).
	It is only a preview option, which does not actually change the footage itself.	It is only a preview option, which does not actually change the footage itself.
	Lock to Selection	Lock to Selection
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	2D Stabilization Panel.	2D Stabilization Panel.

		There is one extra panel which is available in reconstruction mode -- 2D Stabilization Panel.
		The purpose of this feature is to smooth out jerky camera handling on existing real world footage.
		To activate the 2D stabilizer, you need to set the toggle in the pannel, and additionally you need to enable
		Display Stabilization in the Display pannel.
		Then you'll need to set up some tracking points to detect the image movements.

	This panel is used to define data used for 2D stabilization of the shot.	The 2D Stabilization panel is used to define the data used for 2D stabilization of the shot.
		Several options are available in this panel: you may add a list of tracks to determine lateral image shifts
		and another list of tracks to determine tilting and zooming movements.
		Based on the average contribution of these tracks, a compensating movement is calculated and applied to each frame.

	Anchor Frame	When the footage includes panning and travelling movements, the stabilizer tends to push the image out of the
	Reference point to anchor stabilization (other frames will be adjusted relative to the frames position).	visible area. This can be compensated by animating the parameters for the intentional, "expected" camera movement.

	Stabilization Type	See the :doc:`stabilization` page for detailed description of image stabilization parameters and workflow.
	Rotation
	Stabilizes detected rotation around center of frame.

	Scale
	Compensates any scale changes relative to center of rotation.

	Tracks For Stabilization
	Location
	List of tracks to be used to compensate for camera jumps, or location.
	It works in the following way: it gets tracks from the list of tracks used for location
	stabilization and finds the median point of all these tracks on the first frame.
	On each frame, the algorithm makes this point have the same position in screen coordinates by
	moving the whole frame.

	Rotation/Scale
	List of tracks to be used to compensate for camera tilts, it works in the following way.
	On first frame of the movie, this track is connected with the median point of the tracks from
	list above and angle between horizon and this segment is kept constant through the whole footage.

	Autoscale
	Finds smallest scale factor which, when applied to the footage,
	would eliminate all the black holes near the image boundaries.
	Used for when the camera jumps a lot and has noticeable black areas near image boundaries.

	Max
	Limits the amount of automatic scaling.


	Relative Offset X/Y
	Known relative offset of original shot, will be subtracted (e.g. for panning shot, can be animated).
	Expected Rotation
	Rotation present on original shot, will be compensated (e.g. for deliberate tilting).
	Expected Zoom
	Explicitly scale resulting frame to compensate zoom of original shot.

	Influence
	The amount of transformation applied to the footage can be controlled.
	In some cases it is not necessary to fully compensate camera jumps.

	Interpolate
	Nearest
	No interpolation, uses nearest neighboring pixel.
	Bilinear
	Simple interpolation between adjacent pixels.
	Bicubic
	Highest quality interpolation.


	Grease Pencil Panel	Grease Pencil Panel
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