基于小波变换的工程图样融合

对于分块扫描输入的工程图样必须进行拼接处理,以得到一张完整的工程图样。作者介绍了一种图样的融合方法:首先对子图样进行匹配,然后采用二维小波变换对几幅工程子图样进行小波分解,对分解后的图样提取小波系数,进行融合(拼接)处理,得到一幅完全包含子图样信息和内容完整的图样。给出了基于小波变换进行工程图样融合的具体步骤以及应用MATLAB软件进行工程图样融合的过程。

Engineering Drawing Fusion Based on Wavelets Transformation

Several engineering sub-drawings, which scanned from a big engineering drawing, must be mosaic into an integrated one. A novel drawing fusion method is introduced in this paper. The process is to match the sub-drawings firstly; then to perform wavelet decomposition on each sub-drawing based on the MRA (multi-resolution analysis) of two-dimensional wavelet Transformation; finally to fuse the wavelets coefficient by inverse wavelet Transformation, and obtain an engineering drawing, which includes all of the information and contents of the sub-drawings. The fusion steps of engineering drawing based on wavelets Transformation and the fusion processes based on MATLAB are introduced in this paper.