Video signal processing method and device
A method for processing a vide signal, according to the present invention comprises generating a reference picture list based on a current picture reference flag for a current picture, obtaining motion information about a current block in the current picture, and restoring the current block using the motion information of the current block and the reference picture list relating to the current picture.
1. A method of decoding a video signal, the method comprising:
generating a reference picture list based on a current picture reference flag for a current picture;
obtaining motion information about a current block in the current picture, the motion information including at least one of a motion vector and a reference picture index; and
restoring the current block using the motion information of the current block and the reference picture list relating to the current picture,
wherein the current picture reference flag indicates whether at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture, and
wherein the current picture is added to the reference picture list when the current picture reference flag indicates that at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture.
2. The method of claim 1 , wherein generating the reference picture list comprising:
arranging temporal reference pictures used for inter prediction of the current picture, the temporal reference pictures including at least one of a short-term reference picture or a long-term reference picture, and the temporal reference pictures being arranged in a priority order of the short-term reference picture and the long-term reference picture; and
arranging the current picture after the arranged temporal reference pictures, based on the current picture reference flag.
3. The method of claim 1 , wherein restoring the current block comprising determining whether or not a current picture reference mode is used in the current block, based on at least one of the current picture reference flag, the reference picture index of the current block, a slice type, or a partition mode.
4. An apparatus of decoding a video signal, the apparatus comprising:
a prediction unit configured to generate a reference picture list based on a current picture reference flag for a current picture, obtain motion information about a current block in the current picture, and restore the current block using the motion information of the current block and the reference picture list relating to the current picture,
wherein the current picture reference flag indicates whether at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture, and
wherein the motion information includes at least one of a motion vector and a reference picture index, and
wherein the current picture is added to the reference picture list when the current picture reference flag indicates that at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture.
5. The apparatus of claim 4 , wherein the prediction unit is configured to arrange temporal reference pictures used for inter prediction of the current picture, and generate the reference picture list by arranging the current picture after the arranged temporal reference pictures, based on the current picture reference flag,
wherein the temporal reference pictures include at least one of a short-term reference picture or a long-term reference picture, and
wherein the temporal reference pictures are arranged in a priority order of the short-term reference picture and the long-term reference picture.
6. The apparatus of claim 4 , wherein the prediction unit is configured to determine whether or not a current picture reference mode is used in the current block, based on at least one of the current picture reference flag, the reference picture index of the current block, a slice type, or a partition mode.
7. A method of encoding a video signal, the method comprising:
generating a reference picture list based on a current picture reference flag for a current picture;
obtaining motion information about a current block in the current picture, the motion information including at least one of a motion vector and a reference picture index;
restoring the current block using the motion information of the current block and the reference picture list relating to the current picture, and
generating an encoded video signal including the current picture reference flag,
wherein the current picture reference flag indicates whether at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture,
wherein the current picture is added to the reference picture list when the current picture reference flag indicates that at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture.
8. The method of claim 7 , wherein generating the reference picture list comprising:
arranging temporal reference pictures used for inter prediction of the current picture, the temporal reference pictures including at least one of a short-term reference picture or a long-term reference picture, and the temporal reference pictures being arranged in a priority order of the short-term reference picture and the long-term reference picture; and
arranging the current picture after the arranged temporal reference pictures, based on the current picture reference flag.
9. The method of claim 7 , wherein restoring the current block comprising determining whether or not a current picture reference mode is used in the current block, based on at least one of the current picture reference flag, the reference picture index of the current block, a slice type, or a partition mode.
10. An apparatus of encoding a video signal, the apparatus comprising:
a prediction unit configured to generate a reference picture list based on a current picture reference flag for a current picture, obtain motion information about a current block in the current picture, and restore the current block using the motion information of the current block and the reference picture list relating to the current picture, and
an entropy encoding unit configured to generate an encoded video signal including the current picture reference flag,
wherein the current picture reference flag indicates whether at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture,
wherein the motion information includes at least one of a motion vector and a reference picture index, and
wherein the current picture is added to the reference picture list when the current picture reference flag indicates that at least one block belonging to the current picture is predicted by referring to a pre-reconstructed block in the current picture.
11. The apparatus of claim 10 , wherein the prediction unit is configured to determine whether or not a current picture reference mode is used in the current block, based on at least one of the current picture reference flag, the reference picture index of the current block, a slice type, or a partition mode.