Patent application number | Description | Published |
20130279595 | METHOD FOR INDUCING A MERGE CANDIDATE BLOCK AND DEVICE USING SAME - The present invention relates to a method for inducing a merge candidate block and a device using same. An image decoding method involves decoding motion estimation region (MER) related information; determining whether or not a predicted target block and a spatial merge candidate block are included in the same MER; and determining the spatial merge candidate block to be an unavailable merge candidate block when the predicted target block and the spatial merge candidate block are included in the same MER. Accordingly, by parallely performing the method for inducing a merge candidate, parallel processing is enabled and the computation amount and implementation complexity are reduced. | 10-24-2013 |
20130343461 | METHOD FOR DERIVING A TEMPORAL PREDICTIVE MOTION VECTOR, AND APPARATUS USING THE METHOD - Disclosed are a method for deriving a temporal predictive motion vector, and an apparatus using the method. An image decoding method may comprise the steps of: determining whether or not a block to be predicted is brought into contact with a boundary of a largest coding unit (LCU); and determining whether or not a first call block is available according to whether or not the block to be predicted is brought into contact with the boundary of the LCU. Accordingly, unnecessary memory bandwidth may be reduced, and implementation complexity may also be reduced. | 12-26-2013 |
20140247866 | METHOD FOR ENCODING IMAGE, METHOD FOR DECODING IMAGE, IMAGE ENCODER, AND IMAGE DECODER - The present invention relates to a technique for encoding and decoding an image, and a method for encoding the image, according to the present invention, comprises the steps of: performing a prediction with respect to a current block; and transforming a residual which is generated by the prediction, wherein in the step of transforming, a first transform is performed on the residual, and then a second transform is performed on a lower frequency area, and wherein a mode of the second transform can be decided on the basis of a mode of the first transform. | 09-04-2014 |
20140254674 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE - A method for decoding an image, according to the present invention, comprises the steps of: deciding a prediction mode that corresponds to a chroma component block; deciding a transform skip mode of the chroma component block from a plurality of transform skip mode candidates, according to the prediction mode that corresponds to the chroma component block; and reverse-transforming the chroma component block on the basis of the transform skip mode that is decided. | 09-11-2014 |
20140254675 | ADAPTIVE TRANSFORM METHOD BASED ON IN-SCREEN PREDICTION AND APPARATUS USING THE METHOD - Disclosed is an adaptive transform method based on an in-screen prediction, and an apparatus using the method. A method for encoding an image can comprise a step of determining in-screen prediction mode groups, and a step of transforming by using a different transform method according to the in-screen prediction mode group. As a result, transforming can be performed by applying the different transform method according to the in-screen prediction mode group. | 09-11-2014 |
20140269915 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE - A method for decoding an image, according to the present invention, comprises the steps of: receiving image information that corresponds to a block to be decoded; performing entropy-decoding with respect to the image information that is received; deciding a transform skip mode of the block to be decoded from a plurality of transform skip mode candidates, based on the image information that is entropy-decoded; and reverse-transforming the block to be decoded based on the transform skip mode that is decided. | 09-18-2014 |
20140307784 | METHOD AND APPARATUS FOR ENCODING IMAGE, AND METHOD AND APPARATUS FOR DECODING IMAGE - The present invention discloses a method and an apparatus for encoding and decoding video. A video decoding method comprises reconstructing a residual value by entropy-decoding received bitstream and dequantizing and inverse-transforming residual value information, generating a final prediction unit by performing inter prediction on a prediction unit which is partitioned from a coding unit into at least two prediction units by asymmetric motion partitioning (AMP), the two partitioned prediction units comprising a first partitioned prediction unit and a second partitioned prediction unit, and reconstructing a picture by adding the final prediction unit to the residual values. | 10-16-2014 |
20140314143 | METHOD AND APPARATUS FOR COEFFICIENT SCAN BASED ON PARTITION MODE OF PREDICTION UNIT - Provided are a method and an apparatus for coefficient scan on the base of a partition mode of a prediction unit. The method comprises the steps of: determining a scan method on the basis of a partition mode of a prediction unit; and encoding the information about the scan method, wherein the scan method is determined, on the basis of RDO (Rate Distortion optimization), from among the extracted candidate scan methods which have been extracted with consideration of the shapes of the partitions of the partition mode. | 10-23-2014 |