关键词: 鼠洞;边缘检测;二值膨胀;连通性

Abstract:

Traditional manual survey methods for rodent in grassland commonly waste human resources and with long investigation cycle. This paper presents a new automated method for investigating rodent by wireless sensor networks to collect prairie rat hole images. This method uses digital image processing to firstly put these colorful images into regional segments. Then multi-template mask is adopted to remove noise, the images edge is extracted by Sobel edge mask. The discontinuous edges are connected with binary dilation operator. Finally, the rat hole numbers are counted according to connected component to statistics. The experimental results show that this method can effectively count the number of rat holes, and also effectively survey the occurrence of rodent damage.

Key words:
rat hole, edge detection, binary dilation, connectivity