At the present time the prediction method of attracting pest with black light and recognizing and counting by man is generally adopted . there are some serious shortages such as bad recognition accuracy and low efficiency . it reduces seriously accuracy and timeliness of prediction and is disadvantage in guiding insect disease prevention 目前普遍采用的黑光灯诱集害虫、人工识别计数的测报方法，存在识别准确性差、效率低等严重缺陷，极大地降低了测报的准确度和时效性，不利于指导农田害虫的防治工作，因此本文提出了基于机器视觉和小波分析的图像识别技术，用于农田害虫的自动检测预报。
