US 9,813,723 B2
Conditionally invoking a resampling process in SHVC
Jianle Chen, San Diego, CA (US); Xiang Li, San Diego, CA (US); Marta Karczewicz, San Diego, CA (US); and Vadim Seregin, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Apr. 30, 2014, as Appl. No. 14/266,658.
Claims priority of provisional application 61/819,483, filed on May 3, 2013.
Claims priority of provisional application 61/887,235, filed on Oct. 4, 2013.
Prior Publication US 2014/0328398 A1, Nov. 6, 2014
Int. Cl. H04N 19/50 (2014.01); H04N 19/31 (2014.01); H04N 19/587 (2014.01); H04N 19/33 (2014.01)
CPC H04N 19/31 (2014.11) [H04N 19/33 (2014.11); H04N 19/587 (2014.11)] 19 Claims
OG exemplary drawing
 
1. An apparatus for coding video information, the apparatus comprising:
a memory configured to store video information associated with an interlayer reference picture for a current picture to be coded; and
a processor operationally coupled to the memory and configured to:
receive information relating to a plurality of interlayer reference offsets that are configured to define a region of the interlayer reference picture, wherein the region is used to generate a prediction of the current picture, and wherein the plurality of interlayer reference offsets include a left offset, a top offset, a right offset, and a bottom offset relative to the current picture, wherein:
the left offset is a horizontal offset between an upper-left luma sample of the interlayer reference picture and an upper-left luma sample of the current picture;
the top offset is a vertical offset between the upper-left luma sample of the interlayer reference picture and the upper-left luma sample of the current picture;
the right offset is a horizontal offset between a bottom-right luma sample of the interlayer reference picture and a bottom-right luma sample of the current picture; and
the bottom offset is a vertical offset between the bottom-right luma sample of the interlayer reference picture and the bottom-right luma sample of the current picture,
wherein each offset is defined in units of luma samples;
determine that:
a width of the current picture and a width of the interlayer reference picture are equal;
a height of the current picture and a height of the interlayer reference picture are equal; and
the left offset, the top offset, the right offset, and the bottom offset are each equal to 0; and
based on the determination that the width of the current picture and the width of the interlayer reference picture are equal, the height of the current picture and the height of the interlayer reference picture are equal, and the left offset, the top offset, the right offset, and the bottom offset are each equal to 0, not resample the interlayer reference picture.