提出了一种基于高斯小波变换的航空红外图像的目标边缘自动提取的新方法。该方法利用小波变换良好的噪声抑制能力及完备的边缘保持能力 ,能够有效的对红外图像进行目标边缘提取、目标增强及噪声抑制等预处理工作。结果表明 ,该方法对红外航空图片的边缘提取能做到快捷、准确、有效 A new method based on Gaussian wavelet transform is proposed to automatically extract the target edge of aerial infrared images. This method utilizes the good noise suppression ability and complete edge preserving ability of wavelet transform, and can effectively pretreat the infrared image such as target edge extraction, target enhancement and noise suppression. The results show that the proposed method can quickly, accurately and effectively extract the edge of infrared images