The method includes the steps of obtaining initialization information of a reference picture list for the random access slice, the initialization information representing a reference relation between a plurality of views, obtaining type information indicating whether the random access slice is predicted for a single direction or a bi-direction, initializing the reference picture list using the view number information and the view identification information according to the type information, obtaining modification information for the initialized reference picture list, the modification information representing how to assign an inter-view reference index in the initialized reference picture list, modifying the initialized reference picture list for inter-view prediction using the modification information, wherein the initialization information is obtained based on a value indicating decoding order between the plurality of views.