Roni Sengupta

Roni Sengupta

@ronisen.bsky.social

Asst. Prof. UNC Chapel Hill CS Computer Vision & Graphics. https://www.cs.unc.edu/~ronisen/

1,818 Followers 202 Following 32 Posts Joined Nov 2024
7 months ago

Yes! That is very scary! Just trying to stay positive and survive πŸ™ˆ
Btw, NIH already was having a political appointee review all grants before NOA. This just solidifies the whole thing.

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7 months ago

I was freaking out too. But read somewhere that the grant is technically awarded to an institution and not the PI. So hopefully it won’t come to that.

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11 months ago

🀣🀣🀣🀣

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11 months ago

Why Fall colors in April? 🀣

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11 months ago

Don’t joke this can be true! Like how they banned transgenic mice πŸ€¦πŸ½β€β™€οΈ

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1 year ago
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Broadening Participation Scholarship Form CVPR 2025 Travel and Registration Support Application CVPR'25 is committed to supporting students from communities that do not traditionally attend CVPR through registration and travel support. Allocation is based on a combination of need, contribution to the conference, where you are traveling from, the community(ies) you identify with and advisor support. Travel support will be issued in fixed amounts that will be based on availability of funds and travel distance. If you would like to be considered for this support, please complete the following application. Decisions will be made on a rolling basis. Applications will be accepted until April 19 2025 (anywhere on earth).

#CVPR2025 offers registration and travel support to students from underrepresented communities. Awards are based on need, contribution, travel distance, identity, and advisor support.

Information and form: forms.gle/uDR2Q74drC4V...

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1 year ago
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Fueling up for #ICCV2025 deadline with some local Pizza!
PS. I kind of like hanging around in the lab on the deadline day! So much energy all around!

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1 year ago
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Paper rejected from #CVPR2025, paper ready for #ICCV2025 πŸ’ͺ

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1 year ago
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My students will present two papers, including one oral paper, in #WACV2025, which centers on personalized generative face models.
Thanks @luchaoqi.bsky.social for leading this direction.
Unfortunately, couldn't attend WACV as my other students needed me for MICCAI and ICCV deadlines!

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1 year ago

I don’t know how this will be implemented, but may be time to search for opportunities outside the US!

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1 year ago

Congratulations Andrew! This is amazing news! 🍾

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1 year ago
Motion Matters: Neural Motion Transfer for Better Camera Physiological measurement Neural Motion Transfer methods are used as a training data augmentation technique to improve machine learning models for camera physiological sensing.

We did found one! We say that these techniques can be used as data augmentation technique for creating ai models that can measure heart rate from videos, especially one with motion: motion-matters.github.io
Kind of surprising that these techniques do not destroy the heart rate of original video!

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1 year ago
Parker Distinguished Professor received the Presidential Early Career Award for Scientists and Engineers

πŸŽ‰ Congratulations to Prof. @mohitbansal.bsky.social for receiving the Presidential #PECASE Award by @WhiteHouse, which is the highest honor bestowed by US govt. on outstanding scientists/engineers who show exceptional potential for leadership early in their careers!

whitehouse.gov/ostp/news-up...

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1 year ago

X is like this cringy Desi TV show, that you hate but continue watching … where I saw how trans hatred changed to Indians in tech hatred in matter of days - not sure how to feel about that! πŸ˜’

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1 year ago
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🚨 We have postdoc openings at UNC πŸ™‚

Exciting+diverse NLP/CV/ML topics**, freedom to create research agenda, competitive funding, very strong students, mentorship for grant writing, collabs w/ many faculty+universities+companies, superb quality of life/weather.

Please apply + help spread the word πŸ™

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1 year ago

This is awesome! Me and @silviasellan.bsky.social has recently started exploring how gender-agnostics 3D face models can help tracking faces during HRT and help in FFS, to realize this can also help in other facial reconstructive surgery and tracking weight gain-loss + aging.

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1 year ago

Thats a great idea! We were also looking into other SLAM applications in robotics which also face the same challenge of textureless surface with dynamic lighting.

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1 year ago
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Our NFL-BA loss relies on the fact that points closer to the camera (depth map) with orientations facing the camera (normal map) reflect more light. NFL-BA loss is minimized during the Tracking & Mapping phase of existing SLAM frameworks, results shown on 3DGS SLAMs.

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1 year ago
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SLAM algorithms struggle on endoscopy videos - specularity, textureless, & dynamic lighting.

We introduce a Near-Field Light Bundle Adjst. loss (NFL-BA): improves performance of SOTA SLAM, e.g. MonoGS (⬆️35% in tracking, ⬆️48% in mapping).

See asdunnbe.github.io/NFL-BA/
Led by Andrea & Daniel

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1 year ago

Actually in 2.5yrs that’s my biggest green flag - passion!

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1 year ago

Its almost time to recruit PhD students, any advice on how people identify the best students for their labs? This feels like the hardest and possibly the most consequential decision I have to make (so far I have been reasonably lucky). What qualities do you look for and any red flags to watch out?

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1 year ago

I know 🀣

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1 year ago

Why this bias against cats? 😭
Funny cat pics = huge mental health boost! 🀣

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1 year ago

This is my first time and I am surprised to see how good the recommendations were and what a good quality of reviewers we have in the pool!

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1 year ago
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A few key insights:

❌ CtrlNet struggles to preserve input color & texture during relighting.
βœ… Albedo-cond. Stable Diffusion to the rescue.

❌ Only scribble input in CtrlNet doesn't work at all.
βœ… Use latent code from a denoising autoencoder that predicts shading map from scribble+normal map.

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1 year ago
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πŸ’‘Introducing ScribbleLight, a generative model that can relight an image with simple scribbles - making it easier for virtual staging and interior design of homes.

Led by Jun-Myeong, collabs with Anand (TTIC), Pieter (W&M), and Annie.
@unccs.bsky.social

πŸ‘‰ chedgekorea.github.io/ScribbleLight/

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1 year ago
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SOTA virtual face re-aging techniques often struggle to preserve identity for large age changes.
We present MyTimeMachine, a personalized virtual aging gen. model, trained with ~50 images across 20-40 years.
Check out more cool results here: mytimemachine.github.io
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β¬‡οΈπŸ‘‚

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1 year ago
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GitHub - SLAM-Handbook-contributors/slam-handbook-public-release: Release repo for our SLAM Handbook Release repo for our SLAM Handbook. Contribute to SLAM-Handbook-contributors/slam-handbook-public-release development by creating an account on GitHub.

We are in the process of editing a SLAM handbook, to be published by Cambridge University Press, with many *stellar* contributors. Part 1 is available as an online draft for public comments. Help us find bugs/problems!
Link to release repo is here: lnkd.in/gZhTkaxb

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1 year ago
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Holiday party with the UNC Vision & Graphics Lab students … where they get to see more relaxed version of me after the CVPR deadline! 🀣

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1 year ago
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'Surprisingly', good-old StyleGANv2 is more effective for identity-preserving personalized aging than Diffusion, which struggles to make subtle changes - something to fix in the future!
Credits to @luchaoqi.bsky.social for leading the work, in collabs with folks from @unccs.bsky.social and umd
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