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citnaj's profile
Jason Antic
Jason Antic
Jason Antic
@citnaj

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Jason Antic

@citnaj

Obsessively pursuing the perfection of image and video colorization/restoration using deep learning. Creator of DeOldify.

Ocean Beach, San Diego
deoldify.ai
Joined January 2010

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    1. Jason Antic‏ @citnaj 30 Nov 2019
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      Jason Antic Retweeted Jason Antic

      In case anybody was wondering about how I monitor progress in DeOldify- I don’t pay a huge amount of attention to training/validation loss because they don’t actually capture a lot of the issues I wind up seeing (artifacts, uniformly black renders, etc).https://twitter.com/citnaj/status/1200854194002878464 …

      Jason Antic added,

      Jason Antic @citnaj
      Replying to @1Sarim
      1/ Tensorboard allows scrubbing of image changes as they train over time which is what I use. But the selection of which frames get used is super goofy IMHO and doesn’t make much intuitive sense. A linear progression via a high FPS movie would be great.
      2 replies 6 retweets 55 likes
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    2. Jason Antic‏ @citnaj 30 Nov 2019
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      And then I have both the Jupyter notebook “test” image suites and then a batch of 100s of more public domain images. It’s painful and tedious but using my eyes on these directly I’ve found is the only reliable way I have to measure progress. And even the you have to be extremely

      1 reply 0 retweets 10 likes
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    3. Jason Antic‏ @citnaj 30 Nov 2019
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      careful about perception issues- you misremember stuff easily, and literally see things differently depending on context. So I don’t necessarily take a first go at it as the final say as to whether or not the model is great or not.

      2 replies 0 retweets 5 likes
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    4. Travis Hoppe‏ @metasemantic 30 Nov 2019
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      Replying to @citnaj

      Your feedback to what is good, and what is great, eg. the human perceptual things you ended up focusing on, would be very interesting! I imagine trying to approximate your process with a loss function would lead to improvement in other domains.

      1 reply 0 retweets 1 like
      Jason Antic‏ @citnaj 30 Nov 2019
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      Replying to @metasemantic

      Translating “it looks cool” to something tangible and repeatable like that is tough! But yeah it would really be beneficial.

      1:10 PM - 30 Nov 2019
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