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对燃油喷射过程的图像处理是开发柴油机燃油喷射及缸内燃烧激光观测仪的关键技术之一。文中设计了柴油发动机燃油喷射过程图像采集与处理试验系统,并在此基础上重点介绍了将小波分析应用于柴油发动机燃油喷射图像的边缘识别与图像分割方法。试验获得了良好的效果,证明了小波分析应用于柴油机燃油喷射图像处理的可行性与有效性。
The image processing of the fuel injection process is one of the key technologies for developing diesel fuel injection and in-cylinder combustion laser observer. In this paper, a test system for image acquisition and processing of diesel engine fuel injection process is designed. On the basis of this, the method of applying wavelet analysis to the edge recognition and image segmentation of diesel engine fuel injection image is emphatically introduced. The experimental results show that the wavelet analysis is feasible and effective for diesel fuel injection image processing.