Local ternary pattern texture feature extraction method based on mean sampling
A local ternary pattern and texture feature technology, applied in character and pattern recognition, computer parts, instruments, etc., can solve the problem of not being able to adapt to more than 16 neighborhood sampling points, high dimensionality of feature vectors, rotation invariance and characteristic Insufficient dimensionality and other problems, to achieve the effect of suppressing the influence of noise, controlling the dimension of the mode, and improving the robustness
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[0071] In order to better illustrate the technical effects of the present invention, the classic texture database Outex_TC_00010 (abbreviated as OTC10) and the nearest neighbor classifier are used to verify the present invention experimentally.
[0072] The OTC10 database used has a total of 24 types of texture samples, the lumen condition is inca, each type of texture includes 9 different angles, and each angle includes 20 texture images, so the entire database contains 24×9×20=4320 images, images The size of each is 128×128 pixels. Figure 4 It is the OTC10 database texture sample map. In this embodiment, the first 20 samples are selected from each type of texture in OTC10, and a total of 480 texture images are selected as training samples, and the remaining texture images are used to test the accuracy of texture classification.
[0073] In this experimental verification, the number of effective coding pixels is respectively set to P=8, 12, and 16. Therefore, firstly, a mo...
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