Motion Tracker Object

运动跟踪对象

Motion Tracker Object

运动跟踪对象

The Motion Tracker object is the most important element of the motion tracking workflow (see also Motion Tracker).

运动跟踪器对象是运动跟踪工作流程中最重要的元素(参见运动跟踪器)。

Under Working interactively with Tracks you will find information about how to work interactively with the Motion Tracker object. When the object is created, a subordinate camera named Reconstruction Camera will be created. View the scene through this camera to see the footage - if it was already loaded.

在“与轨道交互式工作”下面，您将找到有关如何与运动跟踪器对象交互式工作的信息。创建对象时，将创建一个名为 Reconstruction Camera 的下级相机。查看现场通过这个相机看到的镜头-如果它已经加载。

Explanation of terms: The difference between Tracks and features:

术语解释: 轨道和特征的区别:

• Tracks 足迹 are 2D marks that will only be displayed if the 2 d 标记，只有在Motion Tracker 运动跟踪器 or Object Tracker object object is selected (or its tags) and are not displayed in the 或对象跟踪器对象被选中(或其标记) ，并且不显示在Object Manager 对象管理器. Tracks consist of at least one keyframe in which a pixel pattern is saved. After tracking has been successfully established, they move along a visible path that itself follows the pixel pattern. .轨道由至少一个关键帧组成，其中保存了像素模式。在跟踪成功建立之后，它们沿着一条本身遵循像素模式的可见路径移动
• Features 功能 are the 3D positions that are reconstructed from the Tracks and are visible as Null objects (for the reconstructed camera, these are exactly the same as the Tracks) and arranged as Child objects under the 是从轨道重建的3D 位置，并可视为空对象(对于重建的相机，这些完全相同的轨道) ，并作为子对象安排在Motion Tracker 运动跟踪器 or Object Tracker object in the 中的对象跟踪器对象Object Manager 对象管理器.

Depending on the elements you’re working with, command can be used to easily switch views.

根据您使用的元素，可以使用命令轻松地切换视图。

Camera and features created by the Motion Tracker

相机和功能创建的运动跟踪

After a 3D reconstruction has been completed, the reconstructed camera/feature will be arranged as Child objects under the Motion Tracker object in the Object Manager. These objects ,belong’ to the Motion Tracker object and can be modified or deleted at any time (e.g., when the base Track is modified). Therefore, avoid moving individual features or the camera or making other changes to the hierarchy.

在3D 重建完成后，重建的相机/功能将被安排为子对象下的运动跟踪对象在对象管理器。这些对象属于运动跟踪器对象，可以随时修改或删除(例如，当基本跟踪被修改时)。因此，避免移动个人特征或相机或对层次结构进行其他更改。

If you should want to do this - for whatever reason - copy the camera and features first (make the original Motion Tracker object invisible in the Object Manager) and modify the copies instead.

如果你想这样做-无论什么原因-复制相机和功能首先(使原始的运动跟踪对象不可见的对象管理器)和修改副本代替。

2D Track mode

2 d 跟踪模式

When working with the Motion Tracker object there are two modes available:

当使用运动跟踪器对象时，有两种模式可用:

• 2D Tracks enabled 2 d Tracks enabled: For working with 2D elements (prior to 3D reconstruction) such as Tracks, Track paths, keyframes and : 用于处理2D 元素(在3D 重建之前) ，如轨道、轨道路径、关键帧和Motion Tracker 运动跟踪器 Constraint tags (which work in both modes). 约束标记(在两种模式下都可以工作)
• 2D Tracks disabled 2 d 轨道禁用: For working with 3D elements (after 3D reconstruction), i.e., 3D features and : 用于处理3D 元素(在3D 重建之后) ，即3D 特征和Motion Tracker 运动跟踪器 Constraint tags (which work in both modes). 约束标记(在两种模式下都可以工作)

Details about the 2D Track mode can be found under 2D-Tracks.

关于二维轨道模式的详细信息可以在二维轨道下找到。