Bart Wronski

@BartWronsk

Software Engineer at Google Research Machine Perception. Ex-gamedev (Sony Santa Monica, Ubisoft Montreal, and CD Projekt Red). Expressed opinions are my own.

Vrijeme pridruživanja: veljača 2010.

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  1. Prikvačeni tweet
    30. tra 2019.

    I am excited to share our paper "Handheld Multi-frame Super-resolution" that got accepted to Siggraph 2019: Our algorithm achieves state of the art results in multi-frame Bayer raw image fusion and runs at interactive rates on a mobile device.

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  2. proslijedio/la je Tweet
    prije 20 sati
    Odgovor korisniku/ci

    You mentioned hexagonal filters in passing so I just wanted to plug this (seemingly unknown) paper by which generalizes fast box filtering by prefix sums to polygons (and n-dimensional polytopes):

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  3. prije 21 sat

    New blog post! In this post, I explore separable convolution image filters: how can we check if a 2D image filter is separable, and how to use SVD and linear algebra to compute separable approximations to any filter represented in a numerical form.

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  4. proslijedio/la je Tweet
    31. sij
    Odgovor korisnicima

    The way to understand an OoO core is like statistical mechanics. There are many tiny moving parts whose individual behavior is highly complex and often irregular but whose aggregate behavior is much simpler and fairly predictable.

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  5. proslijedio/la je Tweet
    31. sij
    Odgovor korisnicima

    And it would be disingenuous to say we "don't understand" heat transfer because we can't brute-force it. On the contrary, our understanding is good enough that we don't have to to get highly accurate answers!

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  6. proslijedio/la je Tweet
    31. sij
    Odgovor korisnicima

    Trying to model temperature by tracking the individual motions of every atom in a human-scale physical object is hopelessly intractable. But that doesn't stop us from having really good (and entirely tractable) models for, say, heat transfer.

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  7. 27. sij

    TIL that c++20 introduces a signed, free function std::ssize() . Have mixed feelings - it should have always been signed in the first place, but introducing a new function with different behavior adds layers of complexity to already complex language...

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  8. proslijedio/la je Tweet
    22. sij

    “Companies such as ours cannot just build promising new technology and let market forces decide how it will be used. [Examples of] areas where we will not deploy AI, such as to support mass surveillance or violate human rights.” Article by

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  9. 20. sij

    Lots of interesting (and valuable!) data analysis of tech careers and salaries. Some depressing conclusions too, eg. “(...)After 15 years of experience, you either retire, switch to management, or change career.” :(

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  10. proslijedio/la je Tweet
    16. sij

    Differentiable Digital Signal Processing The library combines classic signal processing with deep learning, integrating inductive biases of time-proven techniques with the expressive power of neural nets. I think this will open up many new possibilities!

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  11. proslijedio/la je Tweet
    14. sij

    Travel photographer Sarah Bethea captured this breathtaking photo last winter in Iceland of a setting sun’s golden rays entering an ice cave & turning a section of the ice amber. The picture was taken at the Treasure Island Caves, Vatnajökull glacier

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  12. 13. sij

    Whenever possible, first solve an abstract version of your problem as rigorously as you can completely outside of the complex system, preferably even in a different language (Python,Mathematica), think it through, and only then port it back +/- knowing the final solution shape2/2

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  13. 13. sij

    Today's random "cpt obvious" thought: When engineering a solution to a complicated problem directly inside a complex system, both the actual problem solution, as well as the code structure will suffer, because both take some mental capacity / are mental burden. 1/2

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  14. proslijedio/la je Tweet
    11. sij
    Odgovor korisnicima

    The thing is, resolution wasn’t even that super-high, but instead the assets were made in a super smart way, ahead of its time - low res base map, good tiled masked detail maps, mesh and planar decals, composing objects etc. way higher quality than brute force high res

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  15. 11. sij

    Oh, and here is my old blog post about this “insane” technique: most crazy part is that I implemented it ~2weeks before the gold master and cinematic artists just went ahead and set its parameters for every cutscene and dialogue as they loved it so much

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  16. 11. sij

    forward-compatible options and caring about the future players,though it had its toll in quite negative reception straight after the release.And I still can’t stop admiring buttery DoF set up by our cinematic artists.Note:ubersampling doesn’t affect DoF,but still insane combo 2/2

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  17. 11. sij

    I am so proud to see almost 10years later people still enjoying the visuals of Witcher 2. :) This was my first full time job and I worked on most of those features in ~2011 (with our amazing artists). I still admire the courage of the studio leads to ship those 1/2

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  18. 10. sij

    Not an answer I was hoping (but kind of was expecting?) for "modern C++ pi constant". :)

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  19. 6. sij

    New blog post, something very different this time! Google Takeout and exporting my own activity data (from Play Music) to analyze personal music listening stats for 2019 using Python, pandas, and matplotlib in Colab.

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  20. 3. sij

    There were also many lows (didn’t finish my MSc,~5years of crunch,months of burnout/depression, sometimes was a jerk, lost friends bc overwork), but overall it was an amazing adventure! The next decade won’t be as fruitful- I am taking it more easy, but hopefully as fun! :) (4/4)

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  21. 3. sij

    Gave 4 talks/presentations(Siggraph, GDC, DD),wrote 2 book chapters, a Siggraph paper, ~50 blog posts, and 2 Gamasutra articles. Got married,travelled around the world,picked up new new skills/hobbies, learned a lot,met many great people,and made a few new true friendships. (3/4)

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