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Parastoo Abtahi
Parastoo Abtahi
@parastoo@hci.social  ·  activity timestamp last month

📣 I’m recruiting 1–2 #HCI PhD students interested in spatial computing, #AR, and #HRI. More information: https://parastooabtahi.com/applicants

If you’re interested, apply to Princeton CS by Dec 15 and mention my name in your application.

Prism-shaped Princeton HCI logo animated to fade in and out on an orange background.
Prism-shaped Princeton HCI logo animated to fade in and out on an orange background.
Prism-shaped Princeton HCI logo animated to fade in and out on an orange background.
Parastoo Abtahi

Princeton HCI Applicants — Parastoo Abtahi

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ProPublica
ProPublica
@ProPublica@newsie.social  ·  activity timestamp 2 months ago

Scientists used historical tidal data to predict that future storms in the Brooklyn neighborhood of Red Hook will produce surging waves reaching at least 11 feet.

The area’s yet-to-be-built flood protection system is only 10 feet.
https://www.propublica.org/article/new-york-city-brooklyn-flood-storm-protection?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon-post

#News #NewYorkCity #NYC #Brooklyn #Flood #Climate #ClimateChange

Alton Barrett
Alton Barrett
@barrettaltonh@mastodon.social replied  ·  activity timestamp 2 months ago

@ProPublica aye

[ #BlackEarthTheHolocaustAsHistoryAndWarning ]

¿\ #Calories | #EcologicalPanic

#toning #vocalizing #singing
#FrequenciesOfGraceToning
https://youtube.com/watch?v=DLFv-d8AleQ&list=PLhZxrogyToZsllfRqQllyuFNbT-ER7TAu&index=11&pp=iAQB

#Americas ( ¿| #oneplanet | #manypeoples ) #NoKings #Freedom
#democracy { ¿| #AUM ( #Aa #Ah #Oh #wu #mMmng ) #Humng #Hree ( #Hri ) #Om #Shalom

#ShalomCenter
{ ¿| #HumanOutcry
ON TYRANNY – LESSONS 1 – 20, 11: Investigate

#HariOmThathSath #TatTvamAsi #ExodusAlliance

LESSON 11: Investigate
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Parastoo Abtahi
Parastoo Abtahi
@parastoo@hci.social  ·  activity timestamp 5 months ago

In #AR, using real-time on-device 3D Gaussian splatting, we create the illusion that physical changes occur instantaneously, while a hidden robot fulfills the “reality promise” moments later, updating the physical world to match what users already perceive visually. 🤖

4/5

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A user wearing a headset looks at a mobile robot in a room. From the user’s eyes, a viewing cone spans the robot from top to bottom. Point-based “splats” inside the cone are colored red, showing what is visible, and those outside are gray, for discard. As the headset moves or the robot moves, the cone adapts to always cover the robot. A second cone is used for the arm, and it grows and shrinks to cover the arm as it expands. Feathering is used to blend the cone with the background, acting like an invisibility cloak.
Parastoo Abtahi
Parastoo Abtahi
@parastoo@hci.social replied  ·  activity timestamp 5 months ago

“Reality Promises: Virtual-Physical Decoupling Illusions in Mixed Reality via Invisible Mobile Robots”

Paper: https://hci.princeton.edu/wp-content/uploads/sites/459/2025/08/kari2025-reality-promises.pdf
Full Video: https://youtu.be/SdDXvIB79j0
Project Page: https://mkari.de/reality-promises/

See you in Busan! 🇰🇷

#HCI#HRI

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Parastoo Abtahi
Parastoo Abtahi
@parastoo@hci.social  ·  activity timestamp 5 months ago

Check out Lauren Wang’s #UIST2025 poster on GhostObjects: life-size, world-aligned virtual twins for fast and precise robot instruction, with real-world lasso selection, multi-object manipulation, and snap-to-default placement.

This is the first piece in her ongoing work on #AR for #HRI 🤖👓 @hci

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A user in AR lasso-selects a pile of books and boxes on the floor, which generates GhostObjects—virtual twins colocated with the real objects. The user then drags the GhostObjects along a trajectory, snapping them into their default shelf positions. And then the robot enters the scene and physically places them on the shelves afterwards.
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