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Updates to NR Metric Framework Repository

Please download this repository from the releases page. This updates our download count, which helps us quantify the value of this repository.

This page has release notes and identifies updates that will change the code's behavior.

NR Metric Framework Version 4.0

The fourth release of the NR Metric Framework includes the following changes:

  • Updated dataset structure to allow media files to be organized into sub-folders
  • Dataset structure version updated to Version 2; users must run update_NRpars.m
  • New datasets available: KonIQ-10k, MUI2018, KoNViD-1K, KoNViD-150K-B, YoukuV1K, VCRDCI, CalAster, and COCRID
  • Replaced export_NRpars.m to match input parameters of other functions
  • New convenience function load_vars.m loads all dataset structures
  • New Demo #4, describing how to create a dataset structure
  • New function update_NRpars.m
  • New function residuals_NRpars.m
  • New function nrff_motion_search.m which interfaces with the motion_search algorithm GitHub repository
  • New tutorial on machine learning for image and video quality assessment
  • Add 'parallelization' query to no reference feature functions (NRFF); set to 'false' if calculate_NRpars.m must not run in parallel for this NRFF
  • Added validation data, to check results when porting NR metric Sawatch to another language
  • Bug fixes

NR Metric Framework Version 3.0

The third release of the NR Metric Framework includes the following changes:

  • NR metric Sawatch Version 3.0
  • The NR metrics that feed into Sawatch have names prefixed with 'S-'
  • New datasets: KonIQ10k, KoNViD-150K-B, MUI2018, VCRDCI, vqegHD, and YoukuV1K
  • Most Reports analyze NR metrics on 6 IQA datasets (previously available) and 6 VQA datasets (new). Our star ratings and analyses were updated to reflect this extra information.
  • New function ci_NRpars.m and ci_calc.m
  • New function peek_NRpars.m
  • New function update_NRpars.m
  • Bug fixes
  • Changed dataset field 'test' to 'dataset_name' to avoid confusion when debugging

Warning: This release changes the field name 'test' to 'dataset_name'. This change impacts all NRpars and all dataset variables. If you have NR parameter data saved, you must run the update_NRpars.m function to fix NRpars.mat files. Alternatively, you can erase the NRpars files and recalculate from features, but this will be unnecessarily slow. See also Demo1.

NR Metric Framework Version 2.0

The second release of the NR Metric Framework includes the following changes:

  • NR Metric Sawatch Version 2.0
  • Confidence intervals for quality metrics
  • Directory "documents" contains help (previously Wiki files)
  • Documentation includes performance reports for NR metrics
  • Directory "reports" contains code for 6 NR metrics from other organizations
  • Bug fixes

NR Metric Framework Version 1.0

The first release of the NR Metric Framework contained the initial release of this repository.