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. 2021 Jul 5;21(13):4592. doi: 10.3390/s21134592
Algorithm 2: Gait feature image generation algorithm.
 Input: Gait signal
 Output: Gait feature image
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    forcolumnLin gait signaldo

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       M=Max(L)

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       N=Min(L)

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       for xi in L do

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        xmap=xi−NM−N×255

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       end

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       return L_map

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    end

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    return signal_map

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    Extraction of feature matrix with sliding window

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    Convert the feature matrix into a feature map