Computing and Using Video Quality Metrics: A Course for Encoding Professionals
This course will teach you how to choose and use video quality metrics like VMAF, SSIMPLUS, PSNR, and SSIM.
Jan provides a great overview of the different video quality metrics, a breakdown of different tools used to measure PSNR, SSIM and VMAF and supports that wi...
Read MoreJan provides a great overview of the different video quality metrics, a breakdown of different tools used to measure PSNR, SSIM and VMAF and supports that with practical examples including tips and tricks he uses for analysis and reporting.
Read LessLearn to compute and use video metrics like VMAF, PSNR, and SSIMPLUS
The pros and cons of common metrics like PSNR, SSIM, VMAF, and SSIMPLUS
How to compute these metrics and interpret the scores
How to create rate distortion curves and compute BD-Rate functions for internal decision making or articles and presentations
How to use these results to make decisions like choosing the optimal encoding parameters or preset, building an encoding ladder, and choosing an encoder
How to use tools like the Moscow State University Video Quality Metric Tool, SSIMPLUS VOD Inspector, Hybrik Media Analyzer, and FFmpeg to compute these metrics
Metric Overview
Comparing Objective Metrics
Using Metrics - In General (Going Beyond the Number)
Introduction to Rate Distortion Curves and BD-Rate Functions
Introduction to Netflix's VMAF
FREE PREVIEWIntroduction to SSIMPlus
Introduction to PSNR
Introduction to SSIM
Selecting and Preparing Test Files
Encoding Your Clips for General Testing
Encoding for Rate Distortion Curves and BD-Rate Functions
FREE PREVIEWTuning for Metrics
Create Same Resolution YUV or Y4M For Testing
FREE PREVIEWScale to Source Resolution YUV or Y4M For Testing
Create 30p Source from 60p Source
Converting YUV Files to Y4M Format
Compute PSNR With FFmpeg During and After Encoding
Compute SSIM With FFmpeg
Compute VMAF With FFmpeg
Overview
FREE PREVIEWLoad Files Into MSU VQMT
Choosing and Configuring Metrics
Running Multiple VQMT Instances
Fixing Out-Of-Sync Videos in the GUI and Command Line
Command Line Operation
Overview
FREE PREVIEWLoading Files and Selecting Tests in the GUI
Downloading and Viewing Results in the GUI
About This Chapter
Download PDF Here
Microsoft Excel: Producing Rate Distortion Curves
Producing BD-Rate Functions
Efficient Chart Title Creation in Excel
Choosing The Best Bitrate Control Technique
FREE PREVIEWFind the Best Quality/Encoding TIme Setting For Your Encoder
Per-Title Encoding
Per-Category Encoding
Choose Best Codec For Live Transcoding
Jan Ozer