面向手机的快速响应码的图像识别
首发时间:2007-07-04
摘要:本文的主要内容是面向手机的二维条码识别处理技术。正因为手机处理能力有限,一些效果不错但是处理时间开销大运算复杂的经典处理方法,如Hough变换等在此并不适用。如何能够使用时间开销小、复杂度较低的方法识别快速响应码成为本文探讨的焦点。本文详细介绍了在手机平台上实现二维条码图像处理的步骤和方法,包括灰度化,二值化,图像裁剪,二值化,投影,图像旋转,中值滤波。其中,通过投影方法实现图像的扶正旋转方法,由于仅选取二维条码的四个顶点进行投影运算,大大降低了其处理的时间开销。实验结果表明该套处理方法具有很好的抗噪性,并且满足了在手机平台处理能力也有限的条件下对处理时间的要求,具有很高的实用性。
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The image processing of QR code based on mobile phone
Abstract:This paper is about the image processing technology of QR code based on mobile phone. As the process capacity of mobile phone is limited, some excellent technology, such as Hough Transform, which is complicated and takes much time, is no t practical. So we are trying to find the way of image recognition which takes little time and is easy to be operated. We introduced the methods and steps for the image processing which includes gray image, image binarization ,image cropping, image binarization, image projection, image rotation and median filtering. Particularly, as we only choose four points to rotate, the time and memory consuming is dramatically decreased. The experiment result shows that the process steps can reduce noise influence efficiently and satisfy the command of time consuming.
Keywords: mobile phone, Quick Response Code, image processing, projection
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No.1384410186611835****
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