BRISK feature-based partial discharge feature extraction and classification method
A feature extraction and partial discharge technology, applied in the field of image recognition, can solve the problem of insufficient reports of partial discharge characteristics in image recognition technology, and achieve the effects of improving recognition effect, fast operation speed and improving efficiency
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Embodiment 1
[0050] This embodiment implements a partial discharge feature extraction and classification method based on BRISK features.
[0051] attached figure 1 The partial discharge feature extraction and classification method step diagram based on the BRISK feature, the partial discharge signal image acquisition and processing unit, the image feature extraction unit and the random forest classifier unit in the block diagram can be realized based on a local server, or can be Cloud computing-based service implementation, or both; the specific implementation can be a project based on the Python language.
[0052] as attached figure 1 As shown, a method for extracting and classifying partial discharge features based on BRISK features in this embodiment includes the following steps:
[0053] S1. The partial discharge signal image acquisition and processing unit collects the partial discharge signal image, and preprocesses the partial discharge signal image;
[0054] S2. The partial disc...
Embodiment 2
[0063] This embodiment implements a partial discharge feature extraction and classification method based on BRISK features.
[0064] attached figure 2 It is a flow chart of an embodiment of a partial discharge feature extraction and classification method based on BRISK features, as attached figure 2 As shown, a method for extracting and classifying partial discharge features based on BRISK features in this embodiment includes the following steps:
[0065] Step 1. Collect partial discharge signal images of Z types of faults as a sample set X={X 1 ,X 2 ,...,X t ,...,X Z}, 1t represents the sample set of the t-th class signal; and N tIndicates the total number of partial discharge signal samples of the t-type fault, Indicates the j-th sample in the t-th type of fault, 1≤j t ≤N t .
[0066] Step 2, extract the BRISK features of all partial discharge signal image sample sets X, and obtain the feature set B={B of all sample sets 1 ,B 2 ,...,B i ,...,B Z}, B i Repr...
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