Patent application number | Description | Published |
20120328035 | DATA TRANSMISSION METHOD AND APPARATUS IN MIMO COMMUNICATION SYSTEM - A method and apparatus for efficiently transmitting data in an MIMO communication system are provided. The method includes receiving first Channel State Information (CSI) fed back from a plurality of terminals; requesting feedback of second CSI from the respective terminals, the second CSI differing from the first CSI; and determining the terminals to be grouped by using at least one of the first CSI and second CSI, when the second CSI is fed back from the respective terminals. | 12-27-2012 |
20130070723 | METHOD FOR DIFFERENTIAL PRECODING AND BASE STATION SUPPORTING SAME - Provided is a differential precoding method for reducing inter-user interference and increasing the sum rate. The differential precoding method comprises initializing a precoding matrix with a first (Precoding Matrix Indicator (PMI) for a channel between a mobile station and a base station; and updating the precoding matrix with a second PMI for the channel and side information for adaptively updating the precoding matrix according to a change speed of a state of the channel, wherein the side information has a quantized scalar value. | 03-21-2013 |
20130108182 | APPARATUS AND METHOD FOR ENCODING/DECODING IMAGES FOR INTRA-PREDICTION CODING | 05-02-2013 |
20130122924 | METHOD FOR MITIGATING INTERFERENCE CAUSED BY BASE STATIONS, AND TERMINALS AND BASE STATIONS SUPPORTING THE METHOD - Provided is a method of mitigating interference caused by a base station. The method includes (a) determining whether there is an accessible base station among one or more base stations, and (b) sequentially determining channel information, which enables minimization of transmission power of each of the base stations, by base station among channel information between each of the base stations and a terminal to transmit the determined channel information to each of the base stations until an accessible base station is found when there is no accessible base station. | 05-16-2013 |
20130128978 | METHODS FOR ENCODING/DECODING OF VIDEO USING COMMON MERGING CANDIDATE SET OF ASYMMETRIC PARTITIONS - The present invention provides video encoding and decoding methods using block merging, which can be applied to a high resolution video of more than HD (High Definition) resolution. A video encoding method includes partitioning a current block into a first and a second prediction unit by using asymmetric partitioning, constructing a list of common merging candidate blocks including a predetermined number of common merging candidate blocks selected from adjacent blocks of the current block, selecting at least one candidate block from among the list of common merging candidate blocks and sending information of the selected candidate block to a decoder for each of the first and the second prediction unit. | 05-23-2013 |
20140185948 | METHOD FOR STORING MOTION PREDICTION-RELATED INFORMATION IN INTER PREDICTION METHOD, AND METHOD FOR OBTAINING MOTION PREDICTION-RELATED INFORMATION IN INTER PREDICTION METHOD - Provided are methods for storing and obtaining motion prediction-related information in inter motion prediction method. The method for storing the motion prediction-related information may include obtaining size information of prediction unit of a picture, and adaptively storing motion prediction-related information of the picture on the basis of the obtained size information of prediction unit of the picture. The method for obtaining the motion prediction-related information may include searching a first temporal motion prediction candidate block to obtain first temporal motion prediction-related information in the first temporal motion prediction candidate block, and searching a second temporal motion prediction candidate block to obtain second temporal motion prediction-related information in the second temporal motion prediction candidate block. Thus, a memory space for storing the motion prediction-related information may be efficiently utilized. Also, an error between the prediction block and an original block may be reduced to improve coding efficiency. | 07-03-2014 |
20140192876 | IMAGE ENCODING/DECODING APPARATUS AND METHOD TO WHICH FILTER SELECTION BY PRECISE UNITS IS APPLIED - According to the present invention, an image encoding/decoding method involves selecting, for units which are more precise than picture units, interpolation filters to be used in a motion compensated inter prediction to calculate sub-pixel values, wherein said precise units include at least one of a slice unit and a partition unit. Thus, encoding precision may be improved in a high resolution image having high definition (HD) or greater resolution. | 07-10-2014 |
20140198848 | IMAGE ENCODING/DECODING METHOD FOR RATE-DISTORTION OPTIMIZATION AND DEVICE FOR PERFORMING SAME - Disclosed are an image encoding/decoding method for rate-distortion optimization and a device for performing the same. A macroblock to be encoded is provided, a prediction macroblock is generated by executing either inter prediction or intra prediction, a residual prediction block is generated on the basis of the generated prediction macroblock and the provided macroblock, and the residual prediction block is transformed by applying one of a plurality of predetermined transform matrices to the generated residual prediction block. Accordingly, rate-distortion can be optimized, and image quality can be enhanced. | 07-17-2014 |
20140301470 | METHODS FOR ENCODING/DECODING OF VIDEO USING COMMON MERGING CANDIDATE SET OF ASYMMETRIC PARTITIONS - The present invention provides video encoding and decoding methods using block merging, which can be applied to a high resolution video of more than HD (High Definition) resolution. A video encoding method includes partitioning a current block into a first and a second prediction unit by using asymmetric partitioning, constructing a list of common merging candidate blocks including a predetermined number of common merging candidate blocks selected from adjacent blocks of the current block, selecting at least one candidate block from among the list of common merging candidate blocks and sending information of the selected candidate block to a decoder for each of the first and the second prediction unit. | 10-09-2014 |
20140325572 | METHOD FOR LINKING MMT MEDIA AND DASH MEDIA - Disclosed is a method for linking MMT media and DASH media. A method for linking MMT media and DASH media comprises the steps of: generating MPD information by extracting an MPD linking information from a home media server, the MPD linking information, which has been transmitted from an MMT transmission server to an MMT, being information comparable to an MPD of DASH for interconnecting DASH and MMT; and transmitting the MPD information to a mobile terminal so that the mobile terminal can replay as DASH media by means of the MPD information. | 10-30-2014 |
20140334504 | METHOD FOR HYBRID DELIVERY OF MMT PACKAGE AND CONTENT AND METHOD FOR RECEIVING CONTENT - Disclosed is a hybrid delivery method for content in which content is divided corresponding to the number of means of delivery and transmitted. An hybrid delivery method of content comprises the steps of: detecting the number of delivery means by which a server can transmit content to a client; dividing the content so as to correspond to the detected number of delivery means; generating composition information for each of the divided content; and transmitting the divided content and the composition information to the client using the transmission means. Thus, a variety of transmission means can be used effectively. | 11-13-2014 |
20150016741 | APPARATUS AND METHOD FOR ENCODING/DECODING IMAGES FOR INTRA-PREDICTION - A method of decoding an image includes the steps of restoring a residual value by performing inverse quantization and inverse transform on the residual value by entropy decoding a received bit stream, generating a prediction unit by performing intra prediction selectively using one of a plurality of prediction modes on a prediction unit split by conducting at least one of asymmetric partitioning and geometrical partitioning, and restoring an image by adding the residual value to the prediction unit. It may be possible to enhance encoding efficiency of high-resolution images having a resolution of HD or higher by performing intra prediction on the asymmetric partitioning and/or geometrical partitioning. | 01-15-2015 |
20150023426 | METHOD AND ENCODING/DECODING OF VIDEO USING COMMON MERGING CANDIDATE SET OF ASYMMETRIC PARTITIONS - The present invention provides video encoding and decoding methods using block merging, which can be applied to a high resolution video of more than HD (High Definition) resolution. A video encoding method includes partitioning a current block into a first and a second prediction unit by using asymmetric partitioning, constructing a list of common merging candidate blocks including a predetermined number of common merging candidate blocks selected from adjacent blocks of the current block, selecting at least one candidate block from among the list of common merging candidate blocks and sending information of the selected candidate block to a decoder for each of the first and the second prediction unit. | 01-22-2015 |
20150023427 | METHOD AND ENCODING/DECODING OF VIDEO USING COMMON MERGING CANDIDATE SET OF ASYMMETRIC PARTITIONS - The present invention provides video encoding and decoding methods using block merging, which can be applied to a high resolution video of more than HD (High Definition) resolution. A video encoding method includes partitioning a current block into a first and a second prediction unit by using asymmetric partitioning, constructing a list of common merging candidate blocks including a predetermined number of common merging candidate blocks selected from adjacent blocks of the current block, selecting at least one candidate block from among the list of common merging candidate blocks and sending information of the selected candidate block to a decoder for each of the first and the second prediction unit. | 01-22-2015 |
20150036741 | METHOD FOR STORING MOVEMENT PREDICTION-RELATED INFORMATION IN AN INTERSCREEN PREDICTION METHOD, AND METHOD FOR CALCULATING THE MOVEMENT PREDICTION-RELATED INFORMATION IN THE INTER-SCREEN PREDICTION METHOD - Provided are methods for storing and obtaining motion prediction-related information in inter motion prediction method. The method for storing the motion prediction-related information may include obtaining size information of prediction unit of a picture, and adaptively storing motion prediction-related information of the picture on the basis of the obtained size information of prediction unit of the picture. The method for obtaining the motion prediction-related information may include searching a first temporal motion prediction candidate block to obtain first temporal motion prediction-related information in the first temporal motion prediction candidate block, and searching a second temporal motion prediction candidate block to obtain second temporal motion prediction-related information in the second temporal motion prediction candidate block. Thus, a memory space for storing the motion prediction-related information may be efficiently utilized. Also, an error between the prediction block and an original block may be reduced to improve coding efficiency. | 02-05-2015 |
20150036750 | METHOD FOR STORING MOVEMENT PREDICTION-RELATED INFORMATION IN AN INTERSCREEN PREDICTION METHOD, AND METHOD FOR CALCULATING THE MOVEMENT PREDICTION-RELATED INFORMATION IN THE INTER-SCREEN PREDICTION METHOD - Provided are methods for storing and obtaining motion prediction-related information in inter motion prediction method. The method for storing the motion prediction-related information may include obtaining size information of prediction unit of a picture, and adaptively storing motion prediction-related information of the picture on the basis of the obtained size information of prediction unit of the picture. The method for obtaining the motion prediction-related information may include searching a first temporal motion prediction candidate block to obtain first temporal motion prediction-related information in the first temporal motion prediction candidate block, and searching a second temporal motion prediction candidate block to obtain second temporal motion prediction-related information in the second temporal motion prediction candidate block. Thus, a memory space for storing the motion prediction-related information may be efficiently utilized. Also, an error between the prediction block and an original block may be reduced to improve coding efficiency. | 02-05-2015 |
20150036751 | METHOD FOR STORING MOVEMENT PREDICTION-RELATED INFORMATION IN AN INTERSCREEN PREDICTION METHOD, AND METHOD FOR CALCULATING THE MOVEMENT PREDICTION-RELATED INFORMATION IN THE INTER-SCREEN PREDICTION METHOD - Provided are methods for storing and obtaining motion prediction-related information in inter motion prediction method. The method for storing the motion prediction-related information may include obtaining size information of prediction unit of a picture, and adaptively storing motion prediction-related information of the picture on the basis of the obtained size information of prediction unit of the picture. The method for obtaining the motion prediction-related information may include searching a first temporal motion prediction candidate block to obtain first temporal motion prediction-related information in the first temporal motion prediction candidate block, and searching a second temporal motion prediction candidate block to obtain second temporal motion prediction-related information in the second temporal motion prediction candidate block. Thus, a memory space for storing the motion prediction-related information may be efficiently utilized. Also, an error between the prediction block and an original block may be reduced to improve coding efficiency. | 02-05-2015 |
20150036752 | METHOD FOR STORING MOVEMENT PREDICTION-RELATED INFORMATION IN AN INTERSCREEN PREDICTION METHOD, AND METHOD FOR CALCULATING THE MOVEMENT PREDICTION-RELATED INFORMATION IN THE INTER-SCREEN PREDICTION METHOD - Provided are methods for storing and obtaining motion prediction-related information in inter motion prediction method. The method for storing the motion prediction-related information may include obtaining size information of prediction unit of a picture, and adaptively storing motion prediction-related information of the picture on the basis of the obtained size information of prediction unit of the picture. The method for obtaining the motion prediction-related information may include searching a first temporal motion prediction candidate block to obtain first temporal motion prediction-related information in the first temporal motion prediction candidate block, and searching a second temporal motion prediction candidate block to obtain second temporal motion prediction-related information in the second temporal motion prediction candidate block. Thus, a memory space for storing the motion prediction-related information may be efficiently utilized. Also, an error between the prediction block and an original block may be reduced to improve coding efficiency. | 02-05-2015 |
20150043631 | IMAGE ENCODING/DECODING METHOD FOR RATE-DISTORTION OPTIMIZATION AND DEVICE FOR PERFORMING SAME - Disclosed are an image encoding/decoding method for rate-distortion optimization and a device for performing the same. A macro-block to be encoded is provided, a prediction macro-block is generated by performing either inter prediction or intra prediction, a residual prediction block is generated on the basis of the generated prediction macro-block and the provided macro-block, and the residual prediction block is transformed by applying one of a plurality of predetermined transform matrices to the generated residual prediction block. Accordingly, rate-distortion can be optimized, and image quality can be enhanced. | 02-12-2015 |
20150043632 | IMAGE ENCODING/DECODING METHOD FOR RATE-DISTORTION OPTIMIZATION AND DEVICE FOR PERFORMING SAME - Disclosed are an image encoding/decoding method for rate-distortion optimization and a device for performing the same. A macro-block to be encoded is provided, a prediction macro-block is generated by performing either inter prediction or intra prediction, a residual prediction block is generated on the basis of the generated prediction macro-block and the provided macro-block, and the residual prediction block is transformed by applying one of a plurality of predetermined transform matrices to the generated residual prediction block. Accordingly, rate-distortion can be optimized, and image quality can be enhanced. | 02-12-2015 |
20150043640 | IMAGE ENCODING/DECODING METHOD FOR RATE-DISTORTION OPTIMIZATION AND DEVICE FOR PERFORMING SAME - Disclosed are an image encoding/decoding method for rate-distortion optimization and a device for performing the same. A macro-block to be encoded is provided, a prediction macro-block is generated by performing either inter prediction or intra prediction, a residual prediction block is generated on the basis of the generated prediction macro-block and the provided macro-block, and the residual prediction block is transformed by applying one of a plurality of predetermined transform matrices to the generated residual prediction block. Accordingly, rate-distortion can be optimized, and image quality can be enhanced. | 02-12-2015 |
20150043643 | IMAGE ENCODING/DECODING METHOD FOR RATE-DISTORTION OPTIMIZATION AND DEVICE FOR PERFORMING SAME - Disclosed are an image encoding/decoding method for rate-distortion optimization and a device for performing the same. A macro-block to be encoded is provided, a prediction macro-block is generated by performing either inter prediction or intra prediction, a residual prediction block is generated on the basis of the generated prediction macro-block and the provided macro-block, and the residual prediction block is transformed by applying one of a plurality of predetermined transform matrices to the generated residual prediction block. Accordingly, rate-distortion can be optimized, and image quality can be enhanced. | 02-12-2015 |
20150043647 | IMAGE ENCODING/DECODING APPARATUS AND METHOD TO WHICH FILTER SELECTION BY PRECISE UNITS IS APPLIED - According to the present invention, an image encoding/decoding method involves selecting, for units which are more precise than picture units, interpolation filters to be used in a motion compensated inter prediction to calculate sub-pixel values, wherein said precise units include at least one of a slice unit and a partition unit. Thus, encoding precision may be improved in a high resolution image having high definition (HD) or greater resolution. | 02-12-2015 |
20150043648 | IMAGE ENCODING/DECODING APPARATUS AND METHOD TO WHICH FILTER SELECTION BY PRECISE UNITS IS APPLIED - According to the present invention, an image encoding/decoding method involves selecting, for units which are more precise than picture units, interpolation filters to be used in a motion compensated inter prediction to calculate sub-pixel values, wherein said precise units include at least one of a slice unit and a partition unit. Thus, encoding precision may be improved in a high resolution image having high definition (HD) or greater resolution. | 02-12-2015 |
20150043649 | IMAGE ENCODING/DECODING APPARATUS AND METHOD TO WHICH FILTER SELECTION BY PRECISE UNITS IS APPLIED - According to the present invention, an image encoding/decoding method involves selecting, for units which are more precise than picture units, interpolation filters to be used in a motion compensated inter prediction to calculate sub-pixel values, wherein said precise units include at least one of a slice unit and a partition unit. Thus, encoding precision may be improved in a high resolution image having high definition (HD) or greater resolution. | 02-12-2015 |
20150043650 | IMAGE ENCODING/DECODING APPARATUS AND METHOD TO WHICH FILTER SELECTION BY PRECISE UNITS IS APPLIED - According to the present invention, an image encoding/decoding method involves selecting, for units which are more precise than picture units, interpolation filters to be used in a motion compensated inter prediction to calculate sub-pixel values, wherein said precise units include at least one of a slice unit and a partition unit. Thus, encoding precision may be improved in a high resolution image having high definition (HD) or greater resolution. | 02-12-2015 |