US 7,593,467 B2
Method and apparatus for decoding video signal using reference pictures
Seung Wook Park, Seoul (Korea, Republic of); Ji Ho Park, Seoul (Korea, Republic of); Byeong Moon Jeon, Seoul (Korea, Republic of); and Doe Hyun Yoon, Seoul (Korea, Republic of)
Assigned to LG Electronics Inc., Seoul (Korea, Republic of)
Filed on Apr. 06, 2009, as Appl. No. 12/419,239.
Application 12/419239 is a continuation of application No. 11/401317, filed on Apr. 11, 2006.
Claims priority of application No. 10-2005-0066622 (KR), filed on Jul. 22, 2005.
Prior Publication US 2009/0180551 A1, Jul. 16, 2009
Int. Cl. H04N 7/12 (2006.01)
U.S. Cl. 375—240.25  [375/240; 375/240.01; 375/240.12] 2 Claims
OG exemplary drawing
 
1. A method for decoding a video signal in a video decoder apparatus, comprising:
obtaining, with the decoding apparatus, offset information between at least one boundary pixel of a reference image and at least one boundary pixel of a current image from a sequence header or a slice header, the reference image being up-sampled from an image of the base layer;
determining, with the decoding apparatus, whether a corresponding block referred by a current block is positioned in an up-sampled image of the base layer, based on the offset information;
obtaining, with the decoding apparatus, a pixel value of the corresponding block based on the determining step; and
decoding, with the decoding apparatus, the current block using the pixel value of the corresponding block,
the offset information including,
left offset information indicating a position offset between at least one left side pixel of the reference image and at least one left side pixel of the current image,
top offset information indicating a position offset between at least one top side pixel of the reference image and at least one top side pixel of the current image,
right offset information indicating a position offset between at least one right side pixel of the reference image and at least one right side pixel of the current image, and
bottom offset information indicating a position offset between at least one bottom side pixel of the reference image and at least one bottom side pixel of the current image.