1. A method of decoding a video comprising a plurality of views, the method comprising: constructing a basic merge motion candidate list using motion information on a neighboring block to a current block and motion information on a temporal corresponding block; and constructing an extended merge motion candidate list using motion information on a view picture different from the current block and motion information on a depth map, the method comprising determining whether motion information on the neighboring block comprised in the basic merge motion candidate list is derived through view synthesis prediction.