THESE FOLLOWING ARE SOME DOCUMENTS

                           PAPERS, SITES AND THESIS BEING RESEARCHED

                  WB01542_.gif (729 bytes)    General Topics                                                               WB01542_.gif (729 bytes)   Sites                     

                  WB01542_.gif (729 bytes)    Image and video processing                                              WB01542_.gif (729 bytes)   Digital Signal Processing
                                                                                         PE01644A.gif (2627 bytes)
                                                                                     
                                                                          Thesis being researched    

                 These are some new results until now, 2000/9
                      - Research domain: lossless image compression
                      - Target: medical images and others
                      - Algorithm used: arithmetic coding improved by Christopher B. Jone, IEEE Transactions on Information theory,
                                   Vol. IT-27, No. 3, May 1981 and some other ideas about conditional probabilities, alpha parameters,
                                   boundary conditions, ...
                      - Result:           

Image

Compression Ratio (1)

Remained data (1)

Zelda 256x256

1.97501 : 1

50.6327 %

Zelda 576x720

1.76846 : 1

56.5463 %

Lena 256x256

1.53454 : 1

65.1659 %

Lena 512x512

1.70342 : 1

58.7056 %

Moon (2)

1.51600 : 1

65.9630 %

Chest (2)

 1.87903 : 1 53.2188 %

Girl 576x720

 1.67505 : 1 59.6996 %

Gazo 400x512

2.13595 : 1

 46.8176 %

Mandrill 256x256

 1.18172 : 1 84.6222 %

Mandrill 512x512

 1.26559 : 1 79.0146 %

Couple 256x256

 2.03867 : 1 49.0517 %

Couple 512x512

 1.68575 : 1 59.3209 %

                     Note:
                            (1) without header, header is 4274 bits
                            (2) default dimension is 256 x 256
          
         Last updated: September 19th 2000

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