摘要
工程图纸扫描识别一直是模式识别中的难点问题。为了克服细化算法逐像素处理的局部特性,已提出了一些非细化算法。这些算法在不同程度上突破了细化算法在像素层次做局部操作的局限,力图抓住图像的宏观特征进行整体识别,但在处理小线素、曲线图像方面有较大局限性。文章采用动态扫描的概念,不对图像编码,利用随机稀疏扫描抽取跟踪头,利用跟踪头信息指导后续跟踪。跟踪时采用动态调节步长,得到了更精确的、完备的低级矢量化结果,为后续矢量处理提供了良好的基础。文章提出的算法可适用于各种不同工程图纸的处理,地理信息数据的提取。
The recognition of scanned image of engineering drawing is very difficult in pattern recognition.To overcome the shortcoming of thinning algorithm,many no_thinning algorithm process the image with pixels in partial level.But they can't process curve and complicated images.The new algorithm takes scan as the basic method.Scan the image dynamically when track down from the prime segment.A parameter head having been set up is used to supervise the succeeding trace procedure,so more precise and sufficient vectorization result is obtained.The satisfying result of processing many different kinds of engineering images or geographical.
出处
《计算机工程与应用》
CSCD
北大核心
2002年第2期92-93,共2页
Computer Engineering and Applications
