The passive visual sensing method was successfully applied to detect the image of weld pool in CO2 welding.
应用被动式视觉传感方法进行CO2焊焊接熔池的形状检测。
Passive sensors can only be used to detect energy when the naturally occurring energy is available .
被动传感器只能被用来检测能源当自然 产生的能量是可用的。
In this paper, we propose a method for passive authentication in digital images, to detect the splicing forgery.
本文提出了一种数字图像被动认证方法，对多幅图像拼接篡改的情况进行检测。
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