There are various ways you can get rid of carpet indentations. For instance, you can loosen the fibres with your fingers and then opt for vacuuming. Moreover, you can also use ice cubes. Place the ice cubes below the area where you see the indentation. Let it melt, and then use a sponge to absorb the extra water. Apart from this, you can use a hairdryer or iron to steam the carpet indentations.