I’m adding some lessons that identify and describe the operation of Mac video utilities to the online course Streaming Media 101 and took this as an opportunity to have a look at Apple’s Advanced Video Quality Tool (AVQT) which launched at the company’s 2021 World Wide Developers Conference. I’m making the lesson available as a lesson of the week, immediately …
Read More »Finding the Just Noticeable Difference with Netflix VMAF
VMAF stands for Video Multimethod Assessment Fusion, but all you really need to know is that it’s the video quality metric co-invented by Netflix to replace the Peak Signal to Noise Ratio (PSNR) that used to fuel the company’s per-title encoding function. In the image above, which is courtesy of Netflix, you see how VMAF scores on the left more closely match …
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