Insulation quality detection method for IGBT of high-frequency frequency converter

The invention relates to the technical field of image data processing, in particular to a high-frequency frequency converter IGBT insulation quality detection method, which comprises the following steps of: traversing pixel points in an IGBT image by using a sliding window, calculating a filter coef...

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Bibliographische Detailangaben
Hauptverfasser: WANG HUADONG, XUN YARU, HAO HAITAO, ZHU KAI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to the technical field of image data processing, in particular to a high-frequency frequency converter IGBT insulation quality detection method, which comprises the following steps of: traversing pixel points in an IGBT image by using a sliding window, calculating a filter coefficient, adjusting an initial range parameter and a search range parameter of the pixel points, and calculating the IGBT insulation quality of the IGBT image; and finally, carrying out filtering processing with adaptive filtering window size on the IGBT image, and segmenting the new IGBT image to obtain a defect area. According to the method, the to-be-detected IGBT image is preprocessed and adaptively filtered, so that interference and influence of illumination noise in the IGBT image on a quality detection result are reduced, and the accuracy of IGBT insulation quality detection is improved. 本发明涉及图像数据处理技术领域,具体涉及一种高频变频器IGBT绝缘质量检测方法,包括:利用滑动窗口对IGBT图像中的像素点进行遍历并计算滤波系数、调节像素点的初始范围参数和搜索范围参数,最终对IGBT图像进行滤波窗口大小自适应的滤波处理,并对新I