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一、光电阅读机在我国的发展背景光电阅读机OMR(Optical Mark Reader)是一种专用计算机输入设备。它可以直接读入信息卡上的涂写内容,并送到计算机中去,这为计算机处理数据是供了方便。但这种读卡设备使用起来有一定的局限性,它只能对信息卡上固定部位的涂写状态进行识别。使用时首先要对输入数据进行规范化筛,根据输入数据的要求设计出专用的信息卡,在信息卡上对所有涂点进行定义,标注出涂写位置,同时要用套
First, the development of optical reading machine in our country Background Optical reading machine OMR (Optical Mark Reader) is a special computer input device. It can be directly read into the information card on the painted content, and sent to the computer, which is for the computer to process data for the convenience. However, this kind of card reading device has some limitations in use, it can only identify the fixed position on the information card. First of all, the input data to be used to standardize the screen, according to the requirements of input data to design a special information card, on the information card to define all the coating points, marking out the location of the application, at the same time to use sets