Moving image coding apparatus and decoding apparatus

Abstract

A moving image coding apparatus which has coders ( 17, 18, 19 ) for dividing an input moving image signal into a plurality of frames, dividing each of the frames into one or more image areas, compressing and coding the image areas, and outputting an area image code string, a system multiplexer ( 20 ) for separating frame header information indicating the coding mode, etc., of the frame frame from the frame frame and adding the frame header information to one or more coded area image code strings, and a sender ( 25 ) for collecting one or more area image code strings to which the frame header information is added, adding packet header information, putting into a packet, and sending the packet.

1 - 2 . (canceled)  
     
     
         3 . A moving image decoding apparatus, comprising: 
 reception means for receiving a moving image code string put into a packet;    separation means for separating one or more area image code strings contained in each packet of the moving image code string;    area image decoding means for decoding the separated area image code string and outputting a decoded area image signal;    image frame decoding means for assembling the decoded area image signal for each frame and outputting a decoded frame image signal; and    means for generating a decoded moving image signal based on the decoded frame image signal.    
     
     
         4 . The moving image decoding apparatus as claimed in  claim 3 , wherein said separation means comprises: 
 a decoder for decoding an access unit based on information of a sync layer packet header contained in the input code string; and    an access unit decoder for decoding an access unit header and generating an original code string.    
     
     
         5 . (canceled)  
     
     
         6 . A moving image decoding apparatus, comprising: 
 a plurality of reception means for receiving a plurality of moving image code strings put into a packet;    area image decoding means for decoding area image code strings of the moving image code strings input from said plurality of reception means and outputting a plurality of decoded area image signals;    frame image decoding means for assembling the decoded area image signals for each frame and outputting a decoded image frame signal; and    means for generating a decoded moving image signal based on the decoded image frame signal.    
     
     
         7 . (canceled)  
     
     
         8 . The moving image decoding apparatus as claimed in  claim 6 , wherein said packet header information includes time stamp information generated by converting time stamp information in the code strings into a predetermined format.  
     
     
         9 . The moving image decoding apparatus as claimed in  claim 6 , wherein said reception means comprises: 
 means for restoring time stamp information of an image contained in packet header information to the original from a predetermined format in said area image decoding means and said frame image decoding means.    
     
     
         10 - 11 . (canceled)  
     
     
         12 . The moving image decoding apparatus as claimed in  claim 6 , wherein said separation means comprises: 
 a decoder for decoding an access unit based on information of a sync layer packet header contained in the input code string and an access unit decoder for decoding an access unit header and generating an original code string.    
     
     
         13 . The moving image decoding apparatus as claimed in  claim 9 , wherein said packet header information includes time stamp information generated by converting time stamp information in the code strings into a predetermined format.  
     
     
         14 - 19 . (canceled)  
     
     
         20 . A method of decoding a moving image, comprising: 
 receiving a moving image code string put into a packet;    separating one or more area image code strings contained in each packet of the moving image code string;    decoding the separated area image code string and outputting a decoded area image signal;    assembling the decoded area image signal for each frame and outputting a decoded frame image signal; and    generating a decoded moving image signal based on the decoded frame image signal.    
     
     
         21 . The method of decoding a moving image as claimed in  claim 20 , further comprising: 
 decoding an access unit based on information of a sync layer packet header contained in the input code string; and    decoding an access unit header and generating an original code string.    
     
     
         22 . A method of decoding a moving image, comprising: 
 receiving a plurality of moving image code strings put into a packet;    decoding area image code strings of the moving image code strings input from said plurality of reception means and outputting a plurality of decoded area image signals;    assembling the decoded area image signals for each frame and outputting a decoded image frame signal; and    generating a decoded moving image signal based on the decoded image frame signal.    
     
     
         23 . A recording medium for executing computer program comprising the steps of: 
 receiving a moving image code string put into a packet;    separating one or more area image code strings contained in each packet of the moving image code string;    decoding the separated area image code string and outputting a decoded area image signal;    assembling the decoded area image signal for each frame and outputting a decoded frame image signal; and    generating a decoded moving image signal based on the decoded frame image signal.    
     
     
         24 . The recording medium for executing computer program as claimed in  claim 22 , wherein said computer program further comprises the steps of: 
 decoding an access unit based on information of a sync layer packet header contained in the input code string; and    decoding an access unit header and generating an original code string.    
     
     
         25 . A recording medium for executing computer program comprising the steps of: 
 receiving a plurality of moving image code strings put into a packet;    decoding area image code strings of the moving image code strings input from said plurality of reception means and outputting a plurality of decoded area image signals;    assembling the decoded area image signals for each frame and outputting a decoded image frame signal; and    generating a decoded moving image signal based on the decoded image frame signal.    
     
     
         26 . (canceled)  
     
     
         27 . The moving image decoding apparatus as claimed in  claim 3 , wherein said frame header information includes any information of a time code, a VPO coding mode, intra DC VLC table change information, motion vector range information contained in the VOP header.  
     
     
         28 . (canceled)  
     
     
         29 . The moving image decoding apparatus as claimed in  claim 6 , wherein said frame header information includes any information of a time code, a VPO coding mode, intra DC VLC table change information, motion vector range information contained in the VOP header.  
     
     
         30 . The moving image decoding apparatus as claimed in  claim 9 , wherein said frame header information includes any information of a time code, a VPO coding mode, intra DC VLC table change information, motion vector range information contained in the VOP header.  
     
     
         31 - 32 . (canceled)  
     
     
         33 . A moving image decoding apparatus, comprising: 
 a receiver configured to perform a function for receiving a moving image code string put into a packet;    a separator for separating one or more area image code strings contained in each packet of the moving image code string;    an area image decoder configured to perform a function for decoding the separated area image code string and outputting a decoded area image signal;    an image frame decoder to perform a function for assembling the decoded area image signal for each frame and outputting a decoded frame image signal; and    a generator configured to perform a function for generating a decoded moving image signal based on the decoded frame image signal.    
     
     
         34 . The moving image decoding apparatus as claimed in  claim 33 , wherein said separator comprises: 
 a decoder configured to perform a function for decoding an access unit based on information of a sync layer packet header contained in the input code string; and    an access unit decoder configured to perform a function for decoding an access unit header and generating an original code string.    
     
     
         35 . (canceled)  
     
     
         36 . A moving image decoding apparatus, comprising: 
 a plurality of receivers configured to perform a function for receiving a plurality of moving image code strings put into a packet;    an area image decoder configured to perform a function for decoding area image code strings of the moving image code strings input from said plurality of receivers and outputting a plurality of decoded area image signals;    a frame image decoder configured to perform a function for assembling the decoded area image signals for each frame and outputting a decoded image frame signal; and    a generator configured to perform a function for generating a decoded moving image signal based on the decoded image frame signal.    
     
     
         37 . The moving image decoding apparatus as claimed in  claim 36 , wherein said packet header information includes time stamp information generated by converting time stamp information in the code strings into a predetermined format.  
     
     
         38 . The moving image decoding apparatus as claimed in  claim 36 , wherein said packet header information includes time stamp information generated by converting time stamp information in the code strings into a predetermined format.  
     
     
         39 . The moving image decoding apparatus as claimed in  claim 36 , wherein said receiver comprises: 
 a unit configured to perform a function for restoring time stamp information of an image contained in packet header information to the original from a predetermined format in said area image decoder and said frame image decoder.    
     
     
         40 . (canceled)  
     
     
         41 . The moving image decoding apparatus as claimed in  claim 36 , wherein said separator comprises: 
 a decoder configured to perform a function for decoding an access unit based on information of a sync layer packet header contained in the input code string; and    an access unit decoder configured to perform a function for decoding an access unit header and generating an original code string.    
     
     
         42 . The moving image coding apparatus as claimed in  claim 39 , wherein said packet header information includes time stamp information generated by converting time stamp information in the code strings into a predetermined format.  
     
     
         43 . (canceled)  
     
     
         44 . The moving image coding apparatus as claimed in  claim 33 , wherein said frame header information includes any information of a time code, a VPO coding mode, intra DC VLC table change information, motion vector range information contained in the VOP header.  
     
     
         45 . (canceled)  
     
     
         46 . The moving image coding apparatus as claimed in  claim 36 , wherein said frame header information includes any information of a time code, a VPO coding mode, intra DC VLC table change information, motion vector range information contained in the VOP header.  
     
     
         47 . The moving image coding apparatus as claimed in  claim 39 , wherein said frame header information includes any information of a time code, a VPO coding mode, intra DC VLC table change information, motion vector range information contained in the VOP header.