changelog
    
    
    - Sun, 21 Apr 2024 19:26:50 +0300
 
    - by Neil Dizon <neil.dizon@helsinki.fi> [Sun, 21 Apr 2024 19:26:50 +0300] rev 22
 
    - added stable interval for denoising
 
    - Sun, 21 Apr 2024 19:05:44 +0300
 
    - by Neil Dizon <neil.dizon@helsinki.fi> [Sun, 21 Apr 2024 19:05:44 +0300] rev 21
 
    - included zero dual in main module
 
    - Sun, 21 Apr 2024 19:04:00 +0300
 
    - by Neil Dizon <neil.dizon@helsinki.fi> [Sun, 21 Apr 2024 19:04:00 +0300] rev 20
 
    - added zero dual predictor for denoising
 
    - Sun, 21 Apr 2024 18:55:00 +0300
 
    - by Neil Dizon <neil.dizon@helsinki.fi> [Sun, 21 Apr 2024 18:55:00 +0300] rev 19
 
    - clarified sino_sparsity
 
    - Sun, 21 Apr 2024 18:45:09 +0300
 
    - by Neil Dizon <neil.dizon@helsinki.fi> [Sun, 21 Apr 2024 18:45:09 +0300] rev 18
 
    - added data generation for new phantom
 
    - Sun, 21 Apr 2024 13:44:02 +0300
 
    - by Neil Dizon <neil.dizon@helsinki.fi> [Sun, 21 Apr 2024 13:44:02 +0300] rev 17
 
    - added new phantom
 
    - Sun, 21 Apr 2024 13:43:18 +0300
 
    - by Neil Dizon <neil.dizon@helsinki.fi> [Sun, 21 Apr 2024 13:43:18 +0300] rev 16
 
    - added zero dual in PET