Algorithm 4 Kernel calculation

Input: $\mathit{\gamma }$ → Kernel parameter ${\mathit{w}}_{\mathit{i}}$ → Support vector matrix $\mathit{x}$ → Pixel to classify 1: $\mathit{i}$ = blockIdx.x * blockDim.x + threadIdx.x 2: if $\mathit{i}$ < ${\mathit{n}}_{\mathit{s}\mathit{v}}$ 3:    $\mathbf{f}\mathbf{o}\mathbf{r} i=0 to {\mathit{n}}_{\mathit{b}\mathit{a}\mathit{n}\mathit{d}\mathit{s}}-1$ 4:     ${{\mathit{d}}_{\mathit{i}}=‖{\mathit{w}}_{\mathit{i}}-\mathit{x}‖}^2$ 5:   end 6: $\mathit{K}\left({\mathit{w}}_{\mathit{i}},\mathit{x}\right)=\mathbf{e}\mathbf{x}\mathbf{p}(-\mathit{\gamma }\ast {\mathit{d}}_{\mathit{i}})$ Output: $\mathit{K}\left({\mathit{w}}_{\mathit{i}},\mathit{x}\right)$