Method and device for encoding/decoding multi-layer video signal

An apparatus for decoding a multi-layer video signal, the apparatus comprising:

• an inter-predictor for determining whether a corresponding picture of a lower layer is used in inter-layer prediction of a current picture of an upper layer, based on a temporal level identifier (ID) of the lower layer, and performing inter-layer prediction of the current picture using the determined corresponding picture of the lower layer, if the corresponding picture of the lower layer is used in inter-layer prediction of the current picture of the upper layer,
• wherein the inter-layer prediction is performed based on a tile boundary alignment flag indicating whether tiles between the upper layer and the lower layer are aligned.

An apparatus for encoding a multi-layer video signal, the apparatus comprising:

• an inter-predictor for determining whether a corresponding picture of a lower layer is used in inter-layer prediction of a current picture of an upper layer, based on a temporal level identifier (ID) of the lower layer, and performing inter-layer prediction of the current picture using the determined corresponding picture of the lower layer, if the corresponding picture of the lower layer is used in inter-layer prediction of the current picture of the upper layer,
• wherein the inter-layer prediction is performed based on a tile boundary alignment flag indicating whether tiles between the upper layer and the lower layer are aligned.