Method for Image Prediction of Multi-View Video Codec and Computer Readable Recording Medium Therefor

Abstract

Provided are a method for image prediction of a multi-view video codec capable of improving coding efficiency, and a computer readable recording medium therefor. The method for image prediction of a multi-view video codec includes partitioning an image to a plurality of base blocks, acquiring information of reference images which are temporally different, acquiring information of reference images which have different views, and predicting a target block based on the acquired information. Accordingly, an image that is most similar to an image of a view to be currently compressed is generated using multiple images of different views, so that coding efficiency can be improved.

1 . A method for image prediction of a multi-view video codec, the method comprising:
 partitioning an image to a plurality of base blocks;   acquiring information of reference images which are temporally different;   acquiring information of reference images which have different views; and   predicting a target block based on the acquired information.   
   
   
       2 . The method of  claim 1 , wherein the information of the reference images which are temporally different includes motion information and residual information associated with the referenced image. 
   
   
       3 . The method of  claim 2 , wherein the predicting of the target block comprises minimizing the residual information to minimize residual information of the target block, using residual information of an image having a different view. 
   
   
       4 . The method of  claim 3 , further comprising adding report information for decoding at the time of encoding, the reporting information reporting the use of the residual information of the image having a different view. 
   
   
       5 . The method of  claim 4 , wherein the report information is contained in a macroblock or higher layer. 
   
   
       6 . The method of  claim 4 , wherein the residual information of the image having a different view is residual information of a view that is most similar to that of the target block among residual information pieces present in different views. 
   
   
       7 . The method of  claim 4 , wherein the residual information of the image having the different value is optimum residual information selected among residual information pieces present in different views. 
   
   
       8 . The method of  claim 6 , further comprising adding detailed information for decoding at the time of encoding, the detailed information reporting the view of the residual information being used. 
   
   
       9 . The method of  claim 8 , wherein the detailed information is contained in a macroblock or higher layer. 
   
   
       10 . The method of  claim 4 , wherein the residual information of the image having a different view is combined residual information obtained by combining at least two optimum residual information pieces selected among residual information pieces present in multiple images having different views. 
   
   
       11 . The method of  claim 10 , wherein the combined residual information is information generated as a mean vale of the at least two selected residual information pieces. 
   
   
       12 . The method of  claim 10 , wherein the combined residual information is information generated by applying a filter to a mean value of the at least two selected residual information pieces. 
   
   
       13 . The method of  claim 1 , further comprising, before the predicting of the target block:
 selecting a location obtained by computation using a global disparity as a reference residual block of the target block.   
   
   
       14 . The method of  claim 1 , wherein the information of the reference images which have different views includes motion information and residual information associated with the referenced image. 
   
   
       15 . The method of  claim 14 , wherein the predicting of the target block comprises minimizing the residual information to minimize residual information of the target block, using residual information of a temporally different image. 
   
   
       16 . The method of  claim 15 , further comprising adding report information for decoding at the time of encoding, the report information reporting the use of the residual information of the temporally different image. 
   
   
       17 . The method of  claim 16 , wherein the report information is contained in a macroblock or higher layer. 
   
   
       18 . The method of  claim 16 , wherein the residual information of the temporally different image is residual information that is most similar to the target block in terms of time among residual information pieces present on multiple different times. 
   
   
       19 . The method of  claim 16 , wherein the residual information of the temporally different image is optimum residual information selected among residual information pieces present on multiple different times. 
   
   
       20 . The method of  claim 18 , further comprising adding detailed information for decoding at the time of encoding, the detailed information reporting the time of the residual information being used. 
   
   
       21 . The method of  claim 20 , wherein the detailed information is contained in a macroblock or higher layer. 
   
   
       22 . The method of  claim 16 , wherein the residual information of the temporally different image is combined residual information obtained by combining at least two optimum residual information pieces selected among residual information pieces present on multiple different times. 
   
   
       23 . The method of  claim 22 , wherein the combined residual information is information generated as a mean value of the at least two selected residual information pieces. 
   
   
       24 . The method of  claim 22 , wherein the combined residual information is information generated by applying a filter to a mean value of the at least two selected residual information pieces. 
   
   
       25 . A computer-readable recording medium storing a program for executing image prediction of a multi-view video codec, the image prediction comprising:
 partitioning a target image to a plurality of base blocks;   acquiring information of reference images which are temporally different;   acquiring information of reference images which have different views; and   predicting a target block based on the acquired information.   
   
   
       26 . The method of  claim 7 , further comprising adding detailed information for decoding at the time of encoding, the detailed information reporting the view of the residual information being used. 
   
   
       27 . The method of  claim 19 , further comprising adding detailed information for decoding at the time of encoding, the detailed information reporting the time of the residual information being used.