System and method for coding and decoding picture signals based on a partition table including length information

Abstract

Method for encoding and decoding a picture signal for detecting and correcting errors in a new structured GOB according to a data partition technique, method for encoding a picture signal, including the steps of (1) grouping picture information of one block group into respective information regions of each block, and partitioning to relevant regions, and (2) forming a partition table having length information of the partitioned regions of the grouped respective information regions.

1 . A method of encoding a video signal comprising: 
 generating a resynchronization signal for a group of image blocks;    generating a first signal including size information of said group of image blocks; and    generating a video signal for said group of image blocks.    
   
   
       2 . The method of  claim 1 , wherein generating the first signal includes: 
 partitioning picture information of the group of image blocks into information regions, the size information indicating a number of bits allocated to each of the information regions.    
   
   
       3 . The method of  claim 2 , wherein the video signal includes the size information, the information regions, and a marker corresponding to resynchronization signal arranged in a predetermined order.  
   
   
       4 . The method of  claim 3 , wherein the predetermined order places the size information between the resynchronization marker and the information regions in the video signal.  
   
   
       5 . The method of  claim 2 , wherein the information regions include: 
 a header region having a group of respective headers of a plurality of macro blocks in the group of image blocks;    a motion vector region having a group of respective motion vectors of the plurality of macro blocks; and    a discrete cosine transform coefficient region having a group of respective discrete cosine transform coefficients of the plurality of macro blocks.    
   
   
       6 . The method of  2 , further comprising: 
 channel coding the information regions in predetermined redundancies.    
   
   
       7 . The method of  claim 6 , wherein the information regions are independently channel coded.  
   
   
       8 . The method of  claim 6 , wherein the information regions are channel coded in different redundancies.  
   
   
       9 . The method of  claim 6 , wherein at least two of the information regions are channel coded differently based on protection levels of the information regions.  
   
   
       10 . The method of  claim 6 , wherein the first signal indicates an order of importance of the information regions, and wherein the redundancy in channel coding is performed based on the order of importance of the information regions.  
   
   
       11 . An apparatus for encoding a video signal comprising: 
 a first circuit to generate a resynchronization signal for a group of image blocks;    a second circuit to generate a first signal including size information of said group of image blocks; and    a third circuit to generate a video signal for said group of image blocks.    
   
   
       12 . The apparatus of  claim 11 , wherein the second unit generates first signal by partitioning picture information of the group of image blocks into information regions, the size information indicating a number of bits allocated to each of the information regions.  
   
   
       13 . The apparatus of  claim 12 , wherein the video signal includes the size information, the information regions, and a marker corresponding to resynchronization signal arranged in a predetermined order.  
   
   
       14 . The apparatus of  claim 13 , wherein the predetermined order places the size information between the resynchronization marker and the information regions in the video signal.  
   
   
       15 . The apparatus of  claim 12 , wherein the information regions include: 
 a header region having a group of respective headers of a plurality of macro blocks in the group of image blocks;    a motion vector region having a group of respective motion vectors of the plurality of macro blocks; and    a discrete cosine transform coefficient region having a group of respective discrete cosine transform coefficients of the plurality of macro blocks.    
   
   
       16 . The apparatus of  12 , wherein the third unit channel codes the information regions in predetermined redundancies.  
   
   
       17 . The apparatus of  claim 16 , wherein the third unit independently channel codes the information regions.  
   
   
       18 . The apparatus of  claim 16 , wherein the third unit channel codes the information regions in different redundancies.  
   
   
       19 . The apparatus of  claim 16 , wherein at least two of the information regions are channel coded differently based on protection levels of the information regions.  
   
   
       20 . The apparatus of  claim 16 , wherein the first signal indicates an order of importance of the information regions, and wherein the redundancy in channel coding is performed based on the order of importance of the information regions.