现有的多维条码技术大多以单个码字为信息记录体,无论其密度多少,都以承载固定容量信息为基本特点.这种结构不适宜承载大容量信息,尤其是容量不确定的多媒体信息,阻碍了这种方便、实用、成本低廉的自动识别技术的广泛应用.为此,提出一种新型的多维连续型矩阵式条码(C-Matrix),以连续分布、个数可变的图形矩阵码作为条码的基本结构,理论上具有存储无限容量的数据并支持快速实时译码的特点.为实现多维C-Matrix译码的实时性,还提出了基于动态扫描线的快速定位点检测算法、双交叉动态扫描识别算法、快速的RS译码算法和统一的条码识别框架.最后完成了原型系统设计,并通过实验证明了该系统的正确性和实用性.%Most of the current multi-dimensional barcodes use single block as their basic carrier, no matter how high their density is, they can only carry information with fixed capacity. As a result, it is not suitable to carry large capacity of information, especially for encoding multi-media data. In this work, a novel kind of multi-dimensional continuous matrix barcode(C-Matrix), which is comprised of continuous and variable matrix blocks, is proposed. C-Matrix is able to carry unlimited data theoretically and can be recognized and decoded in real-time. For the sake of C-Matrix decoding in real-time, a fast fiducial points detection algorithm based on dynamic scan lines, a double cross dynamic scanning algorithm, a fast algorithm of decoding RS code and a uniform framework of recognizing barcode, are proposed. Finally, a propotype system for C-Matrix is implemented and is shown to be effective and practical.
展开▼
