Function inverse_log_transform

gsplat/compression_simulation/ops.py:11–12

(y)

    return torch.sign(x) * torch.log1p(torch.abs(x))

def inverse_log_transform(y):
    return torch.sign(y) * (torch.expm1(torch.abs(y)))

def fake_quantize(input: Tensor, lower_bd: float, upper_bd: float, bitwidth: int = 8, q_type: str = "round"):
    q_step = (upper_bd - lower_bd) / (2**bitwidth - 1)