1. An apparatus for coding video information, the apparatus comprising: a memory unit configured to store video information associated with a base layer, an enhancement layer, or both; and a processor operationally coupled to the memory unit and configured to: determine a scaling factor based on spatial dimension values associated with the base and enhancement layers such that the scaling factor is constrained within a predetermined range; and spatially scale an element associated with the base layer or enhancement layer using the scaling factor and a temporal motion vector scaling process.