This is a deep dive into best practices for deinterlacing and upscaling miniDV archival video using state of the art open-source tools like QTGMC and NNEDI3 in Vapoursynth via Hybrid. There are many other deinterlacing and upscaling tools out there, however, this is one of my go-tos due to simplicity and relatively fast computation. It's also open source!
Hybrid by Selur: https://www.selur.de/
Vapoursynth: https://www.vapoursynth.com/
Davinci Resolve Studio 18: https://www.blackmagicdesign.com/products/davinciresolve/studio
Staxrip: https://github.com/staxrip/staxrip
Bonus mystery link: https://poynton.ca/
You can also visit my personal website at: https://zacharyhalberd.com/
Chapters:
00:00 - Introduction to deinterlacing and its importance for archival media
01:16 - How deinterlacing is handled automatically by NLEs, but not optimally
02:00 - Workflow for extracting, restoring and reconnecting an archival clip
07:09 - Overview of workflow diagram for round-tripping between NLE and restoration tools
12:50 - Conforming the restored project in DaVinci Resolve
15:52 - Launching and using the Hybrid video processing tool
19:08 - Upscaling the archival clip by a factor of 2 using nnedi3 interpolation
23:56 - Converting from Rec.601 to Rec.709 color space
26:10 - Removing edge halos caused by in-camera sharpening, using fine dehalo
28:13 - Deinterlacing using qtgmc (high quality 3D deinterlacer)
30:09 - Checking the field order of the source clip
34:42 - Resizing and encoding the restored clip
49:44 - Comparing the original and restored clips side-by-side
54:52 - Examining stair-stepping artifacts on diagonal lines
55:50 - Color fidelity issues from improper deinterlacing
57:01 - Wrap-up and encouraging use of Hybrid for restoration