src.feature_align.bilinear_interpolate

src.feature_align.bilinear_interpolate(im: torch.Tensor, x: torch.Tensor, y: torch.Tensor, device=None)

Bi-linear interpolate 3d feature map to 2d coordinate (x, y). The coordinates are at the same scale of \(w\times h\).

Parameters

• im – \((c\times w\times h)\) feature map

• x – \((1)\) x coordinate

• y – \((1)\) y coordinate

• device – output device. If not specified, it will be the same as the input

Returns

\((c)\) interpolated feature vector