IROS 2026 Pittsburgh
Overhead view of the IROS 2026 exhibit hall.

IEEE / RSJ · 27 September to 1 October 2026

From Steel City to Roboburgh

A week at IROS, by Dipankar Bhattacharya Imperial College London

1,900+papers, talk and poster
170+exhibitors
#3269our RTFF paper
38thedition of IROS

Pittsburgh spent a century making steel. This week it made a convincing case that it now makes robots.

The 38th IEEE/RSJ International Conference on Intelligent Robots and Systems ran at the David L. Lawrence Convention Center on the Allegheny riverfront. Howie Choset of Carnegie Mellon chaired. Ross L. Hatton of Oregon State ran the program. More than 1,900 contributed papers each got both a talk and a poster. There were 170 plus exhibitors, 19 keynotes, three plenaries, 86 workshops and nine competitions. The city calls itself Roboburgh, and for five days the hall felt like the thesis statement.

I was there with our paper RTFF, Random to Target Fabric Flattening Policy using Dual Arm Manipulator (paper #3269), joint work with Kai Tang (The University of Hong Kong), Hang Xu (JD.com), Fuyuki Tokuda (Tohoku University), Norman C. Tien (HKU) and Kazuhiro Kosuge (City University of Hong Kong). Kai and I share first authorship.

What I took away

The plenary question

Monday’s plenary on start ups and entrepreneurship put Vijay Kumar, Andrea Thomaz of Diligent Robotics and others on the Hall C stage, with Lisa Chai and Henrik I. Christensen moderating. Wednesday closed the scientific programme with the debate the organising committee had teased all year. Should robots be generalists or specialists?

Plenary panel on start ups and entrepreneurship in Hall C.
Monday in Hall C. Start ups as the path from prototype to product.
Plenary debate slide on generalists or specialists.
Wednesday’s debate. Generalist body on the left, specialist arm on the right.

Humanoids can already do hard stage work

Walking the humanoid aisle, it is hard not to be impressed by how far the form has come. Bodies that once struggled to stay upright now sell athletic competence as a product demo. Unitree G1 clusters have done kung fu, drunken boxing and coordinated falls on China’s Spring Festival Gala. EngineAI’s T800 kicks and spars in a ring, including at IROS. MagicLab has danced with human performers. Galbot sustains humanoid tennis rallies with whole body planning. The motion control is real, and it is evolving fast.

EngineAI humanoids boxing in a ring on the exhibit floor.
EngineAI sparring live on the IROS floor. Martial arts as a stress test for balance and recovery.
Unitree booth with humanoids and quadrupeds.
Unitree’s stand. Bipeds, a boxing humanoid and wheeled leg quadrupeds in one aisle.

Daily chores are still a different problem

What those demos do not settle is household generality. A robot that can punch or dance on a flat stage still struggles with daily chores such as laundry, cooking or clearing a cluttered table. The reason is that environment dynamics change from place to place. Kitchens differ in layout, lighting, object sets and clutter. Clothes deform differently from house to house. The same action sequence that works in one demo cell fails when furniture, friction and human habits shift. Stage routines are closed world performances. Homes are open world, non stationary, and full of contact that vision alone does not solve.

Why I favour specialists

That is why I leave IROS on the specialist side of the plenary. Robot vacuums, warehouse AMRs, surgical arms, force controlled cobots such as Flexiv, and even our own RTFF fabric policy are ergonomically and algorithmically designed for a narrow job, and they already ship value. A Roomba does not need a humanoid torso. It needs a morphology and a controller matched to floors. Specialists win when the task geometry is stable.

Flexiv Enlight force controlled robot arms.
Flexiv Enlight arms. Specialist morphology for contact rich work, not a generalist body.

Where humanoids still matter

Humanoids still matter where the world is built for people and the working conditions are poor. Warehouses, factories and fulfilment centres are the honest use case. Amazon’s aisle, with yellow automation beside Digit class picking, makes that pitch clear. In those spaces a general purpose body can share tools, aisles and totes with humans without redesigning the building. The point is not humanoid everywhere. It is humanoid where human form is the constraint, and specialist machines everywhere else.

Amazon Fulfillment Innovation booth.
Amazon booth 1127. Fulfilment automation under From fulfillment to innovation.
Digit class biped picking into a bin.
Digit class picking in a cordoned cell. Humanoids where the workplace still assumes a human body.
Humanoids for harsh, human shaped workplaces. Specialists such as vacuums, arms and fabric policies for the rest.

Our paper on fabric flattening

Why fabric is still hard

Garment production wants a robot that can take a crumpled panel and lay it flat in a specified pose for sewing, cutting or printing. Flattening and alignment fight each other. Smooth out a wrinkle and the cloth walks. Shove it back into place and you raise new folds. Depth cameras also lose the fabric under the gripper.

What RTFF does

RTFF treats both the current cloth and the user specified target as the same CAD template mesh. Wrinkle height and pose error become vertex discrepancies, with no registration step. A graph attention network predicts that mesh from RGB D even when the arm occludes the panel. A Mesh Action Chunking Transformer, trained on a small dual arm teleoperation set, does the coarse flatten and align. Position based visual servoing finishes once the cloth is dual grasped and nearly flat.

1.1 cmterminal alignment error
0.93mean IoU on the real cell
0 / 20failures, in distribution

Talk and poster

Drop the mesh and the policy fails. Drop visual servoing and both error and variance jump. Trained on one fabric, the same policy transferred to unseen materials and an 80 percent scale. Kai gave the talk on Wednesday afternoon in Learning Priors for Specialized Manipulation Skills in rooms 411 and 412, around 15:57. We stood the poster at Pod C11 West from 16:30 to 18:00.

Project page and video · arXiv 2510.00814

Kai presenting RTFF at IROS 2026. Paper #3269, rooms 411 and 412.
Kai Tang presenting RTFF at a lectern.
Kai Tang at the lectern. The slide poses the coupling between flattening and pose correction.
Closer view of Kai Tang presenting the RTFF talk.
Same session, closer crop. Paper #3269 in rooms 411 and 412.
The full RTFF conference poster on the board.
The poster. Template mesh, MACT and visual servoing on the dual arm cell.
Dipankar Bhattacharya standing beside the RTFF poster.
Pod C11 West on Wednesday evening. Same paper, longer conversations.
RTFF presentation slide on screen.
A slide from the talk. Coarse imitation learning handing off to visual servoing.

Companies on the exhibit floor

The aisle sorted itself into four kinds of work. Below is what each company I photographed was actually selling, then the photo gallery for that category. Open More images when I took a sequence. All 222 frames are in the album.

Humanoid robots

Unitree Robotics (booth 500) filled the densest stand with G1 class bipeds, a boxing humanoid, wheeled leg quadrupeds and manipulation demos. Amazon (booth 1127, silver sponsor) showed fulfilment automation and Digit class biped picking for warehouse work. Sharpa (booth 514) ran a teleoperated bartender with VR and haptic hands. Booster Robotics lined up small research and education bipeds with outdoor jogging footage. EngineAI put T800 class bodies in a live boxing ring and is behind the URKL fighting league. Galbot (gold sponsor) kept high dynamic motion going and took a category award for humanoid tennis learned from imperfect human motion. Astribot used IROS for the North American debut of the T1 upper body platform. PAL Robotics (booth 1005) brought TIAGo Pro Arm for manipulation research along with their service robot family. Dexmate pitched research humanoids with plug and play teleoperation. ROKAE showed industrial, collaborative and embodied AI robots including humanoid form factors. Rainbow Robotics (booth 835) combined a quadruped, dual arm mobile manipulator and VR teleoperation. Sony (booth 1129) opened aibo to researchers through an SDK tied to Isaac Sim and Isaac Lab. I also stopped by the RAI Institute (booth 1102) for their Ultra Mobility Vehicle, Roadrunner and Koala grippers for data collection.

Embodied data and simulation

Lightwheel sells physics accurate synthetic data and simulation for embodied AI. NVIDIA anchored many demos with Isaac Sim. OptiTrack provided precision motion capture as ground truth for locomotion and interaction. MANUS and neighbouring Rokoko capture sold high fidelity hand and body tracking for teleoperation datasets. Haply Robotics supplied grounded force feedback hardware for the human side of data collection. Open dual arm and open humanoid stacks argued that algorithms should travel with the hardware.

Dexterous hands and tactile sensing

PaXini AI stacked Hall effect tactile sensors, e skin, gloves, hands and humanoids, arguing that foundation models need contact data as much as video. Tashan Technology sells AI tactile sensing chips for force, deformation and texture. Analog Devices (booth 1028) showed multi finger hands with tactile driven manipulation and slip detection. BionIT Labs displayed Adam’s Hand, an adaptive underactuated end effector. Xynova pitched a full stack for dexterous manipulation.

Arms, mobile platforms and other systems

Flexiv (booth 922) showed force controlled Enlight and Rizon arms with whole body sensing. Franka Robotics remained the research arm default on FR3 cells. DOBOT sold education and industrial cobots. Fujitsu framed a Physical OS around small object manipulation. Robify showed a mobile manipulator and AMR base for indoor logistics. ROBOTIS laid out DYNAMIXEL actuators by size. maxon supplied precision motors and drives. HOMPO hovered an indoor quadrotor over its floor sticker. Smaller legged platforms such as CHOPTO mini quadrupeds and a bio inspired orange crab walker rounded out the specialist morphology niche.

Booth photo gallery

Posters that caught my eye

Every paper also stood as a poster, so the hall was a second conference. A few boards that photographed well, including one from Edward Johns’ lab at Imperial.

Simlify poster from Imperial College London and UCLA.

Simlify · Imperial and UCLA

Real to sim spatial reasoning from a single view, with Edward Johns on the author list.

University of Michigan TrackDeform3D poster.

TrackDeform3D · Michigan ROAHM

Markerless 3D keypoints on ropes and cloth with two Franka arms and one RGB D camera.

University of Washington DirectHop insect robot poster.

DirectHop · UW AIR Lab

A one gram direct drive insect that chooses jump height and self rights.

Oregon State poster on coordinate independent robot model identification.

Coordinate free identification · Oregon State

Yanhao Yang and Ross L. Hatton on system identification that does not depend on which coordinates you picked.

Pittsburgh between sessions

Between sessions the terrace looks onto the yellow bridges. One lunch was a Primanti Bros sandwich with fries in the sandwich. Wednesday night the conference moved to the Carnegie Science Center for the farewell reception, with IROS logos on black glass and a glowing furnace exhibit in the next room. Steel City still, with better actuators.

Yellow bridges over the Allegheny River.
From the convention centre. The bridges Pittsburgh puts on every postcard.
Downtown Pittsburgh skyline from the convention centre terrace.
Wednesday light on downtown from the DLCC terrace.
Primanti Bros sandwich stacked with meat, slaw and fries.
Primanti Bros. You have to do it once.
IROS 2026 Pittsburgh logo at the Carnegie Science Center.
Farewell reception at the Carnegie Science Center. The mark is two robot arms making a bridge.