The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system.

象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。

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The vest detects the orientation and position of the helium atoms and sends the data to a computer, which turns it into an image of airflow through the lung.

背心能够探测到氦原子方向和位置，然后把数据传给计算机，再转化成一副气流流经肺部的图像。

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It can also identify and monitor the position of the eyes, so it knows exactly where each image needs to be beamed, and passes this information on to the holographic-projection system.

它还可以发现与跟踪眼睛的位置，因此可以知道在什么位置投射什么图像，然后传递这种信息给全息投影系统。

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When the result is transformed back into its original condition, the only light remaining marks the position of the target, or things that looked similar to it, in the original image.

ECONOMIST: Optical recognition

Optical correlators, meanwhile, work by encoding images on to a beam of light and, using a special lens, transforming them into their Fourier components building-blocks that encode the thickness and direction of lines in the image, but not their position.

ECONOMIST: Optical recognition

The capability to also adjust the audio settings of Parrot Zikmu Solo according to the size of the room (room size compensation) and the position of the speaker in the room (room position compensation) contributes to this balanced sound image.

ENGADGET: Parrot Zikmu Solo reaches US in November, makes a tower of wireless sound yours for $999