Трек (track)¶
Трансформировать (transform)¶
В процессе.
Track Motion¶
The Track Motion menu is used to perform tracking of selected tracks (i.e. following the selected feature from frame to frame).
This operator depends on settings from the Tracking Settings panel. If during sequence tracking the algorithm fails to track some markers, they will be disabled and tracking will continue for the rest of the markers. If the algorithm fails when tracking frame-by-frame, the marker is not disabled, and the most likely position of the feature on the next frame is used.
Backwards¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Shift-Ctrl-T
Tracks the motion backward along the sequence.
Frame Backwards¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Alt-Left
Tracks the motion backward by one frame.
Forwards¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Ctrl-T
Tracks the motion forward along the whole sequence.
Frame Forwards¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Alt-Right
Tracks the motion forward one frame.
Очистить¶
Before¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Shift-T
Deletes all tracked and keyframed markers after the current frame for all selected tracks.
- Clear Active
Limits clear action to only active track (as opposite to all selected ones).
After¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Alt-T
Deletes all tracked and keyframed markers before the current frame for all selected tracks.
- Clear Active
Limits clear action to only active track (as opposite to all selected ones).
Track Path¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Shift-Alt-T
Clears all markers except the current one from all selected tracks.
- Clear Active
Limits clear action to only active track (as opposite to all selected ones).
Clear Solution¶
В процессе.
Refine¶
This operator will run a tracker from previous keyframe to current frame for all selected markers. Current markers positions are considering initial position guess which could be updated by a tracker for better match.
Useful in cases when feature disappears from the frame and then appears again. Usage in this case is the following:
When feature point re-appeared on frame, manually place marker on it.
Use Refine Markers operation to allow tracker to find a better match.
Depending on direction of tracking use either Forwards or Backwards refining. Accordingly if tracking happens forwards, use Refine Forwards, otherwise use Refine Backwards.
Backwards¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
Refine the track backwards.
Forwards¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
Refine the track forwards.
Add Marker¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
Places a new marker at the position of the mouse (which is under the button in this case, not ideal but it is just how things work) and then it can be moved to the needed location. When it is moved to the desired position, LMB can be used to finish placing the new marker. Also, Return and Spacebar can be used to finish placing the marker. But it is faster to use Ctrl-LMB to place markers directly on the footage. This shortcut will place the marker in the place you have clicked.
In addition to this until you have released the mouse button, you can adjust the marker position by moving the mouse and using the track preview widget to control how accurately the marker is placed.
Detect Features¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
Detects all possible features on the current frame and places markers at these features. This operator does not take other frames into account, so it might place markers on features which belong to moving objects. If the camera is turning away from this shot, no markers could be present within the frames after the camera moved away.
There are several properties for this operator:
- Размещение
Controls where to place markers.
- Whole Frame
Places markers throughout the whole frame.
- Inside Annotated Area
Places markers inside the area outlined with the Инструменты аннотаций. This can be used to outline some areas with interesting features and place markers only inside the outlined area.
- Outside Annotated Area
Places markers outside the area outlined with the Инструменты аннотаций. This can be used to outline areas of no interest (like trees, humans, etc.) and place markers outside of these areas.
- Отступ (margin)
Controls the distance from the image boundary for created markers. If markers are placed too close to the image boundary, they will fail to track really quickly and they should be deleted manually. To reduce the amount of manual clean-up, this parameter can be used.
- Порог (threshold)
Limits minimal threshold for placing markers. This value comes from the feature detection algorithm and it means: low values means most probably this feature would fail to track very soon, high value means it is not much such track. Amount of markers to be added can be controlled with this value.
- Расстояние (distance)
Defines the minimal distance between placed markers. It is needed to prevent markers from being placed too close to each other (such placement can confuse the camera solver).
Создать трек-плоскость (сreate plane track)¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
Оператор Create Plane Track создаёт новую трек-плоскость. Плоскостное отслеживание использует тот факт, что в кадрах часто присутствуют плоские поверхности, прикрепляя маркеры к точкам на этих плоских плоскостях. Это можно использовать для замены таких вещей, как рекламные щиты и экраны в вашем материале, другим изображением или видео. Это также можно использовать для маски́рования.
Эта кнопка создаст объект-плоскость, которая деформируется так же, как и плоскость, определяемая всеми выбранными точками-треками. Необходимо как минимум четыре точки, отслеживаемые по отснятому материалу, принадлежащие плоскости, которую вы хотите заменить. Больше треков дадут более качественную оценку движения плоскости.
Точки, используемые для оценки движения плоскости, могут быть использованы из любого места на плоскости, что означает, что это не обязательно должны быть углы. Углы не всегда легко отслеживаются, они могут быть перекрыты. В этом случае вы можете расположить отслеживаемые элементы, которые находятся на той же плоскости, – далеко от фактической плоскости, которую нужно заменить.
Это даёт больше информации о возможной деформации маркера в последующих кадрах, и такие маркеры могут быть отслежены даже если они частично перекрыты (появляются и исчезают с течением времени). Требуется только, чтобы два соседних кадра имели не менее четырех общих треков.
Изображение можно спроецировать на плоскость с помощью ноды композитинга Plane Track Deform.
Solve Solution¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
The Camera Motion operator solves the motion of camera using all tracks placed on the footage and two keyframes specified on this panel. There are some requirements:
There should be at least eight common tracks on the both of the selected keyframes.
There should be noticeable parallax effects between these two keyframes.
If everything goes smoothly during the solve, the average reprojection error is reported to the information space and to the Clip editor header. Reprojection error means the average distance between reconstructed 3D position of tracks projected back to footage and original position of tracks. Basically, reprojection error below 0.3 means accurate reprojection, (0.3 - 3.0) means quite nice solving which still can be used. Values above 3 means some tracks should be tracked more accurately, or that values for focal length or distortion coefficients were set incorrectly.
Join Tracks¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Ctrl-J
This operator joins all selected tracks into one. Selected tracks should not have common tracked or keyframed markers at the same frame.
Average Tracks¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
The Average Tracks operator creates a new tracking marker by averaging the data from the selected tracks. This can be used to improve stability of tracking on blurry or non-very-sharp feature shapes. The operator takes into account all Marker properties however, disabled markers do not affect the averaging.
Gaps in the original tracks will be linearly interpolated, to reduce result track jump. Note that this only applies to gaps «in between». This means that if a track does not have markers in the beginning or end of it, there is nothing to interpolate with and the resulting track will jump.
- Сохранить оригинал
When enabled, the selected tracks are not deleted.
Copy Tracks¶
В процессе.
Paste Tracks¶
В процессе.
Анимация (animation)¶
В процессе.
Показать/скрыть (show/hide)¶
В процессе.
Привести в порядок (clean up)¶
Clean Tracks¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
Identifies all tracks which matches settings from above and performs desired action on them.
- Tracked Frames
Tracks or tracked segments shorter than this number of frames will be removed.
- Reprojection Error
Tracks which has reprojection error higher than this value will be removed.
- Действие (action)
Several actions can be performed for bad tracks.
- Выделить (select)
They can simply be selected.
- Delete Track
The whole track can be deleted.
- Delete Segments
Bad segments of tracked sequence can be removed.
Filter Tracks¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
This operator deletes obviously bad tracks (for example, the ones which are too short). Additionally, it identifies tracks which has suspicious spikes in their motion and selects them.
Delete Track¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
X
Delete all selected tracks.
Delete Marker¶
Ссылка
- Режим (mode):
Tracking (Отслеживание)
- Меню:
- Горячая клавиша:
Shift-X
В процессе.