System and method for video and graphic compression using mulitple different compression techniques and compression error feedback

Abstract

A line-based one-dimensional system and method for video and graphic compression compresses an image data block that contains image data values from one or more neighboring pixels. The system and method involves compressing an image data sample of the image data block using multiple different compression techniques to generate multiple compression results, selecting one of the compression results, and compressing a next image data sample using the multiple different compression techniques and a compression error from the selected one of the compression results.

1 - 14 . (canceled) 
     
     
         15 . A method for video and graphic decompression, the method comprising:
 selecting an image reconstructing technique from multiple different image reconstructing techniques based on a codeword; and   reconstructing an image data sample from the codeword using the selected image reconstructing technique.   
     
     
         16 . The method of  claim 15 , wherein reconstructing the image data sample from the codeword comprises:
 deriving a quantization value from the codeword; and outputting the quantization value as the image data sample.   
     
     
         17 . The method of  claim 15 , wherein reconstructing the image data sample from the codeword comprising:
 deriving a differential value from the codeword; reconstructing a previous image data sample; and combining the reconstructed previous image data sample and the differential value to generate the image data sample.   
     
     
         18 - 20 . (canceled)