In infrared photography, the film or image sensor used within a digital camera is sensitive to infrared lighting, which allows the camera to pick up any light that's invisible to the human eye.

在红外线摄影中，数码相机上使用的胶片传感器或图像传感器对红外光感光，能让相机拾取人眼不可见的任何光线。

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Using the device's on-board camera and thermal-imaging technology, the operator was able to pick up the suspect through his body heat and direct foot patrols to his location.

操控者利用该装置上安装的摄像机和热成像技术得以通过疑犯身体的热量找到并指挥徒步巡逻队锁定他的位置。

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NASA says that's because the moon's surface and the astronauts' suits were so reflective that it was too bright for the camera to pick up the comparatively faint stars.

NASA说，这是因为宇航员的宇航服反射非常强烈，对于摄像机来说，宇航服太亮以至于摄像机无法获取相对微弱的星光。

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It has an ingenious optical-guidance system a camera that can either lock on to an operator-designated object or can pick up a laser spot and home in on it.

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