Therefore, the study of workpiece assembly alignment has certain practical significance based on the video frequency image.

因此基于视频图像的工件装配对准技术研究具有一定的现实意义。

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Microvision's current pico projection engine uses red and blue laser diodes and a frequency-doubled "synthetic" green laser to create a full color image.

ENGADGET: Microvision integrates direct green laser into pico projector prototype, completes RGB achievement

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?