| 术语 | scan head |
| 释义 | scan head 扫描头 In the IBM3886 Optical Character Reader, the electronic device used to scan aline. The scan head includes an infrared light source, a lens to focus this light on the document, and mirrors and photodiodes to receive the reflected light. When scanning a line, the scan head is moved across the document along the scan band to collect the character images. The output from the scan head is processed for character recognition in the recognition and control processor. 在IBM3886光符阅读器中,一种用于扫描字符行的电子装置。扫描头包括一个红外光源、 一个将光聚焦在文件上的镜头以及反光镜和用来接收反射光的光电二极管。当扫描某一行 时,扫描头沿着扫描带从文件的一端移到另一端,以收集字符图象。扫描头的输出在识别 和控制处理机中进行处理,以进行字符识别。 |
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