面部表情捕捉比动作捕捉更加困难，因为面部的动作要小得多。
Capturing facial expressions is harder than motion capture because the movements are much smaller.
其中一个问题是，《极地速递》中运用的面部表情捕捉系统无法捕捉眼睛的运动。
One problem was that the facial-capture system used in "the Polar Express" could not capture eye movements.
不同于“发光小球”，这些小点是直接绘在面部表皮组织上的，因而可以捕捉到更细微的表情。
Unlike marker beads, the dots were painted directly on surface tissue, which allowed more detailed expression capture.
捕捉面部表情，并用这些表情来操纵虚拟角色的表情，比捕捉肢体动作困难得多，因为它涉及的动作微小得多，也更加难以捉摸。
Capturing facial expressions and using them to drive the expression of a virtual character is more difficult than motion capture, because the movements involved are much smaller and more subtle.
这种眼镜带有内置摄像机，可以捕捉到对方的面部表情，并将它们与表达情感的24种表情特征配对。
The glasses have a built-in camera which monitors the other person's facial expressions and matches them up with 24 known features which convey emotions.
表演捕捉提出了两个明显的问题：一是捕捉肢体动作，即动作捕捉；一是捕捉面部表情。
Performance capture poses two distinct problems: capturing body movements, known as motion capture, and capturing facial expressions.
这一部和上一部有一丝不同，在身体动作捕捉上没什么变化，变化在于对于我们面部表情的捕捉。
What they did this time around was a little different from the previous game, not so much with regards to capturing our body movement, but our facial expressions.
拍摄期间，他的身体贴着80个“发光点”，脸上贴着152个；8台摄像机负责捕捉他的身体动作，56台用来捕捉面部表情。
During the shooting, 80 markers were attached to his body and 152 to his face, with eight cameras performing the motion capture for the body and 56 cameras for the face.
拍摄期间，他的身体贴着80个“发光点”，脸上贴着152个；8台摄像机负责捕捉他的身体动作，56台用来捕捉面部表情。
During the shooting, 80 markers were attached to his body and 152 to his face, with eight cameras performing the motion capture for the body and 56 cameras for the face.
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