This image captures a momentary line-up looking out along this fundamental plane of our solar system.

这幅图片从黄道平面的视角捕捉到地球、月球和太阳排成一条直线的瞬间画面。

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Motion estimation, which may refer to image-plane motion (2-D motion) or object-motion (3-D motion) estimation, is one of the fundamental problems in digital video processing.

运动估计，包括二维的平面估计和三维的立体估计，是数字视频处理中一个很基本的问题。

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