Ruixiang Cao

Oct 19, 2025

VecNav: Vector Goal Robot Navigation from In-the-wild Videos

IEEE/RSJ IROS 2025 · First Author

Trains a monocular navigation model via self-supervision from uncalibrated, human-captured videos, yielding a generalist policy that guides various robots in unfamiliar environments.

Mar 2, 2025

DreamPrinting: Volumetric Printing Primitives for High-Fidelity 3D Printing

ACM SIGGRAPH 2025 · Emerging Technologies Best in Show · Co-first Author

Transforms radiance-based volumetric representations (e.g. NeRF) into physically fabricable Volumetric Printing Primitives for high-fidelity full-color 3D printing. Recipient of the SIGGRAPH 2025 Emerging Technologies Best in Show Award — a first for a Chinese institution.

Jan 16, 2025

Poxel: Voxel Reconstruction for 3D Printing

Kyoto University, Learning Machines · First Author

A Printable-Voxel framework that removes view-dependency and maps digital RGB into a physical CMYKWCl color space, directly outputting full-color voxel grids for photopolymer-jetting 3D printing.

Feb 11, 2022

Video-driven Neural Physically-based Facial Asset for Production

ACM SIGGRAPH Asia 2022 · Co-author

Published at ACM SIGGRAPH Asia 2022 (ACM Transactions on Graphics). Presents a video-driven approach for building neural physically-based facial assets that fit production rendering pipelines, balancing editability and visual realism.

Mar 4, 2022

OmniWheg: An Omnidirectional Wheel-Leg Transformable Robot

IEEE IROS 2022 · First Author

Published at IROS, a top-tier robotics conference. Proposes an omnidirectional wheel-leg dual-mode transformable mechanism.

Nov 2, 2021

Filament LED Wall

Club Project · Real-time Video Light Wall · Jetson + Arduino

A wall of filament LEDs driven by Jetson Xavier NX and Arduino, rendering a live camera feed as a warm-toned light display.

Sep 4, 2021

Music with Stepper Motors

Club Project · Stepper Motors Playing MIDI · Arduino

Parses MIDI with Python’s mido and drives stepper motors over serial so the motors “sing” by pitch and rhythm.

Jun 20, 2021

“The Last” — Unity Game

Course Project · Post-apocalyptic Survival Shooter · Unity

A self-made post-apocalyptic survival shooter with a building system, environment interaction, inventory, and original sound effects.

Mar 15, 2021

Dome Light-Field 3D Capture System

Lab Project · ShanghaiTech MARS Lab

Led, as the core student lead, the build of a spherical dome light-field 3D capture rig for facial geometry and material capture.

Oct 29, 2026

ShanghaiTech: SIST Student Team Wins Second Prize at the IROS 2026 Legged Robot Challenge

Second Prize, IROS 2026 Legged Robot Challenge · H2ROBOTIC Team Member

Ruixiang Cao and teammates Haoyan Mu, Lexin Yang and Yikang Huang formed H2ROBOTIC, earning second prize with the Tongchui M1 wheel-legged quadruped through strong motion control and reliable performance.

Jul 31, 2026

Stratasys: 3DGS Meets 3D Printing — Turning Visual Realism into Physical Realism

Sparsee × Stratasys Joint Livestream · Guest Speaker

Official Stratasys livestream announcement: Sparsee and Stratasys go live on how 3DGS moves from screen to physical material, with Ruixiang Cao presenting the print3dgs.com platform and voxel-data preparation workflow.

Jul 30, 2026

NanjiXiong: 3D Gaussian Splatting Can Now Be Full-Color 3D Printed

Industry Media Coverage · Livestream Announcement

NanjiXiong explains the 3DGS-to-print pipeline: Sparsee prepares 3DGS content via print3dgs.com, Stratasys fabricates it with PolyJet voxel printing, and the two announce a joint technical livestream.

May 12, 2026

Surfing Founders: Sealing the World in Resin — In Conversation with Ruixiang Cao

In-depth Founder Interview

A long-form founder interview tracing the path from light-field reconstruction to full-color UV 3D printing — turning a moment into a permanent memory.

Aug 21, 2025

ShanghaiTech: SIST Research Wins ACM SIGGRAPH Best Paper Award and More

Co-first Author of the DreamPrinting Paper

Official SIST news: CAST won the conference Best Paper Award; DreamPrinting, co-first-authored by Ruixiang Cao, received the Emerging Technologies Best in Show Award — a first for a Chinese institution.

Aug 2025

Shanghai Observer: One Year of the Zhangjiang Mo-Li Community

Mentions Ruixiang Cao & Sparsee

Jul 28, 2025

Shanghai Observer: Zhangjiang Sets Off Again at 33

Sparsee’s Transparent-Cube Keepsake

On Zhangjiang’s innovation ecosystem, featuring Sparsee’s end-to-end full-color 3D scan-and-print service and its transparent-cube keepsakes.

Jul 25, 2025

The Paper: AI Implementation, the “Pudong Way”

Featuring Founder Ruixiang Cao

A tour of Pudong’s “Mo-Li Community” AI hub, quoting Ruixiang Cao on Sparsee’s vision of a new era of 3D memory.

Jul 25, 2025

IFNews: AI Implementation, the “Pudong Way”

Founder Interview

Official interview at the Pudong AI industry exhibition on the full-color 3D scan-and-print business.

Sep 29, 2023

Labour Daily: ShanghaiTech’s Dome Light-Field Undergraduate Team

Five Undergraduates Built the Dome Rig

Press-association coverage of ShanghaiTech: Ruixiang Cao and four fellow undergraduates built a dome light-field system for facial geometry and material capture at the MARS studio.

Dec 5, 2022

Sohu: Asia’s Only Micron-Level Facial Scanning System Arrives at Qingdao Oriental Movie Metropolis

Dome Light Field at Qingdao Oriental Movie Metropolis

Coverage of the micron-level facial scanning system at Qingdao Oriental Movie Metropolis, which captures facial materials and expressions and uses an automated digital-human pipeline to generate high-fidelity dynamic and static assets within three days.

Aug 26, 2021

ShanghaiTech: Making Things in My College

Founder of Sandbox Studio

Official college feature: Ruixiang Cao recounts founding the “Sandbox Studio” and leading the design and fabrication of campus memorabilia such as the Mass Tower model, etched rulers, and SIST badges.

Mar 15, 2021

ShanghaiTech SIST: A Student Team Builds the Dome Light Stage

Core Student Lead, Dome Light Stage

Official SIST feature: Ruixiang Cao and four fellow undergraduates built a spherical dome light stage with ~150 controllable LED sources at the MARS lab for facial geometry and material capture.

Jan 16, 2017

SJTU High School (Jiading): SMASHING Team Wins “F1 in Schools” Best Design

Grade 11 · Team Engineer

Jan 5, 2017

SJTU High School (Jiading): 2016 Sci-Tech Achievements Review

Multiple Competition Awards

Nov 1, 2016

SJTU High School (Jiading): 1st Prize at the 2nd Shanghai Maker Star Contest

1st Prize, 3D Creative Design

Sep 27, 2016

SJTU High School (Jiading): Top Prize at Tongji Structural Design Invitational

Special Prize, Mechanical & Energy Engineering

May 25, 2016

SJTU High School (Jiading): Honored in the “Tomorrow’s Sci-Tech Star” Selection

District “Future Sci-Tech Star”