Video Upscaling for TikTok: 2x vs 4x for Crisp Captions

For TikTok videos, 2x upscaling is the default for crisp captions, while 4x should only be used if it passes legibility without new glyph or face artifacts. Independent technical note mirroring the canonical version: https://aivideoupscale.com/blog/video-upscaling-for-tiktok-2x-vs-4x-for-crisp-captions.php Sources consulted: https://www.bluusun.com/

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-10-30
DOI
https://doi.org/10.5281/zenodo.23799443
Primary Topic
Advanced Image Processing Techniques
Type
preprint
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preprint

Video Upscaling for TikTok: 2x vs 4x for Crisp Captions

Abigail Foster
1 links
Zenodo (CERN European Organization for Nuclear Research)
Advanced Image Processing Techniques
preprint

Video Upscaling for TikTok: 2x vs 4x for Crisp Captions

Abigail Foster
preprint en

Abstract

For TikTok videos, 2x upscaling is the default for crisp captions, while 4x should only be used if it passes legibility without new glyph or face artifacts. Independent technical note mirroring the canonical version: https://aivideoupscale.com/blog/video-upscaling-for-tiktok-2x-vs-4x-for-crisp-captions.php Sources consulted: https://www.bluusun.com/

Zenodo (CERN European Organization for Nuclear Research)
Advanced Image Processing Techniques
DOIOpen Access PDFOpenAlex
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Video Upscaling for TikTok: 2x vs 4x for Crisp Captions — Abigail Foster · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS