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AssigneePanasonic Intellectual Property Corporation of America
InventorsViktor Wahadaniah, Chong Soon Lim, Sue Mon Thet Naing, Hai Wei Sun, Toshiyasu Sugio, Takahiro Nishi, Hisao Sasai, Youji Shibahara, Kyoko Tanikawa, Toru Matsunobu, Kengo Terada
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An image coding method includes: deriving a candidate for a motion vector predictor from a neighboring motion vector; adding the candidate to a list; selecting a motion vector predictor from the list; coding a current block; and coding a current motion vector. In the deriving, the candidate is derived according to a first derivation scheme when each of a current reference picture and a neighboring reference picture is determined to be a long-term reference picture, and the candidate is derived according to a second derivation scheme when each of a current reference picture and a neighboring reference picture is determined to be a short-term reference picture.
A motion vector predictor deriving method of deriving a motion vector predictor for each block among blocks of pictures, the motion vector predictor deriving method comprising:
A motion vector predictor deriving apparatus which derives a motion vector predictor for each block among blocks of pictures, the motion vector predictor deriving apparatus comprising:
Dependencies are inferred from the claim text.
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Involving temporal prediction: motion estimation or motion compensation
The unit being an image region, e.g. an object: the region being a block, e.g. a macroblock
Motion estimation or motion compensation: processing of motion vectors
By encoding: by predictive encoding
About 6 years of term left · ends 25 Oct 2032 (estimated)
One or more exemplary embodiments disclosed herein relate to an image coding method for coding each of the blocks of pictures.
One exemplary technique for coding each of the blocks of pictures is the technique disclosed in Non-patent Literature 1.
ISO/IEC 14496-10 “MPEG-4 Part 10 Advanced Video Coding”
These and other advantages and features will become apparent from the following description thereof taken in conjunction with the accompanying Drawings, by way of non-limiting examples of embodiments disclosed herein.
FIG. 1 is a flowchart of operations performed by an image coding apparatus according to a reference example.
FIG. 2 is a flowchart of operations performed by an image decoding apparatus according to the reference example.
(Underlying Knowledge Forming Basis of the Present Disclosure)
In relation to the image coding method disclosed in the Background section, the inventors have found a problem indicated below. It is to be noted hereinafter that an image may refer to any one of a video made up of a plurality of pictures, a still image made up of a single picture, a part of a picture, and the like.
Examples of the recent image coding schemes include the MPEG-4 AVC/H.264 and High Efficiency Video Coding (HEVC). These image coding schemes support inter prediction based on coded reference pictures.