An image detect system with near infrared CCD for monitoring the copper weld pool on the surface of steel was established.

建立了一个近红外CCD熔池动态信息的图像检测系统，用于钢表面铜熔池视觉信息的检测。

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An image detect system with near infrared CCD (charge coupled devices) for monitoring the copper weld pool on the surface of steel was established.

建立了一个近红外CCD熔池动态信息的图像检测系统，用于钢表面铜熔池视觉信息的检测。

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They also try to detect if noise-the overexposed pixels within the image that create a grainy effect-was present at the time the photograph was taken or has been added later.

他们还试图检测噪声——图像中呈现粒状效果的过度曝光像素——是产生于照片被摄制的时刻还是后来才被加上的。

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Using millimeter wave technology, which the TSA says emits 10, 000 times less radio frequency than a cell phone, the machine scans a traveler and a robotic image is generated that allows security personnel to detect potential threats -- and, some fear, more -- beneath a person's clothes.

CNN: Airport security bares all, or does it?

At sunset, the sun appears red (the blue light has been scattered out of that image, too), so the cells of the eye that detect red are overloaded and incapable of registering weaker red signals.

ECONOMIST: In a flash