说明：  针对烟雾图像的特点，本文提出两种烟雾图像型火灾检测方法：基于小波变换的烟雾图像型火灾检测法和基于帧图像相减法的烟雾图像型火灾检测法。
(Characteristics of smoke images, this paper presents the image of two smoke fire detection method: based on wavelet transform image of the smoke fire detection and smoke image subtraction frame-based image fire detection method.)