基于小波提升变换的边缘检测及应用

在分析了小波提升格式的基础上,提出了基于小波提升变换的图像边缘检测新算法.首先,通过小波提升分解获得水平、垂直、对角线细节子图和近似子图.然后,根据子图特性分别采用不同的算子进行边缘检测.最后,利用小波逆变换重构图像.通过在交通车流量检测的实验表明了该方法有效性.

Edge Detection Based on Wavelet Lifting Transform and Its Application

According to wavelet lifting scheme analysis,a new method for edge detection based on wavelet transform is presented.Firstly,sub-images of horizontal,vertical and diagonal details are acquired through the wavelet decomposition.Secondly,according to sub-images characteristics,sub-image edges are detected by different edge detection operator.Lastly,image is reconstructed through the inverse wavelet transform.The experimental result confirms that the proposed method is feasible through traffic flow detection.