这要求手机能够识别条码并打开正确的链接网页。

This required mobiles that were capable of reading the codes and then displaying the linked pages properly.

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在识别条码前，要在图像中过滤掉文本和其他图案，检测出条码所在位置。

Before its recognition, bar code needs to be located by filtering text and other signs in the image.

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这个房卡可以在一个视频识别条码系统上使用，这个条码上包括了客户的个人信息及其他提前预订的服务，因此可以在使用酒店内的各处服务设施或客房服务时使用。

The keycard works on a RFID system which includes the customer’s details and pre-assigned services, so it can be used elsewhere around the hotel or for in-room services.

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