SAR Image Object Recognition Method Based on Non-negative Matrix Factorization Based on Sparse Constraint
A technology of non-negative matrix decomposition and sparse constraints, which is applied in the field of non-negative matrix decomposition SAR image target recognition, can solve the problem of not reflecting the sparsity of SAR images, and achieve the goal of improving the difference, improving the recognition rate, and improving the recognition accuracy Effect
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[0032] refer to figure 1 As shown, the specific implementation steps of the present invention are as follows:
[0033] Step 101: Input a training sample set and a test sample set, and the input samples are SAR target pictures in the MSTAR database, such as figure 2 As shown, a is the original image of the BMP2-SN_9563 armored vehicle, b is the original image of the BMP2-SN_9566 armored vehicle, c is the original image of the BTR70-SN_C71 armored vehicle, d is the original image of the T72-SN_132 main battle tank, e The original image of the T72-SN_812 main battle tank. The MSTAR database is provided by the DARPA / AFRL Motion and Stationary Target Acquisition and Recognition Project work, figure 2 The resolution of each image is 0.3m*0.3m and the size is 128*128. In the experiment, the training sample we selected is the image when the SAR pitch angle is 17°, and the selected test sample is the pitch angle of 15°. ° picture.
[0034] The input training sample set is Z={Z i...
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