protected virtual void InitBilinear(string name, NdArray arr)
{
var shape = arr.GetShape().Data();
var prodShape = Util.Prod(shape);
float[] weight = new float[prodShape];
var f = Math.Ceiling(shape[3] / 2.0);
var c = (2 * f - 1 - f % 2) / (2.0 * f);
for (int i = 0; i < prodShape; i++)
{
var x = i % shape[3];
var y = (i / shape[3]) % shape[2];
weight[i] = (float)((1 - Math.Abs(x / f - c)) * (1 - Math.Abs(y / f - c)));
}
arr.SyncCopyFromCpu(weight);
}
protected virtual void InitLocBias(string name, NdArray arr)
{
Util.Assert(arr.GetShape()[0] == 6);
arr.SyncCopyFromCpu(new[] { 1.0f, 0, 0, 0, 1.0f, 0 });
}
