复杂图像背景下的一维条码定位研究

摘要

复杂背景中的条码自动定位在图像式条码识别系统中是一个关键步骤,如何在复杂的背景中快速、自动地检测出条形码是研究的主要内容.主要利用条码区域的边缘密度高、以及边缘方向单一特征检测条码区域,研究了复杂图像背景中条码定位的步骤并提出一种基于边缘梯度方向的边缘提取法,得到了较好的效果.%It is a critical step in image-type barcode recognition system that to automatically locate the barcode in complex background, the main point of this paper is to detect the barcodes in complex background quickly and automatically. The high edge density of the barcode regions and the single characteristic of boundary direction are mainly used in the paper for detecting barcode regions, the steps to locate the barcode in complex image background are studied, and a boundary extraction method on the basis of edge gradient direction is presented with preferred result.