Kenkun Liu (刘垦坤)

📍 Based in Shanghai, China

I am now a Senior Researcher at Hunyuan (混元), Tencent, focusing on 3D generative foundation models. Before that, I obtained my PhD from The Chinese University of Hong Kong, Shenzhen, under the supervision of Prof. Xiaoguang Han.

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Working Experience

Hunyuan, Tencent (混元)

Senior Researcher · Mar 2026–Present

Current

Internships

Hunyuan, Tencent (混元)

Research Intern · Oct 2025–Mar 2026

StepFun (阶跃星辰)

Research Intern · Mar 2025–Oct 2025

Tongyi Lab, Alibaba (通义实验室)

Research Intern · Jul 2024–Mar 2025

Selected Projects

xbench
xbench

A continuously updated benchmark for evaluating AI-agent productivity in real-world professional tasks.

Selected Publications (first author & co-first author)

UniMo paper teaser
UniMo: Unified Motion Generation and Understanding with Chain of Thought

An LLM-based framework that unifies text-to-motion generation and motion-to-text understanding with motion-consistent chain-of-thought data and GRPO post-training.

AAAI 2026
UniGS paper teaser
UniGS: Modeling Unitary 3D Gaussians for Novel View Synthesis from Sparse-view Images

A DETR-style model that represents 3D Gaussians as unified world-space queries and updates them via multi-view deformable cross-attention for sparse-view reconstruction.

ICCV 2025
Motions as Queries paper teaser
Motions as Queries: One-Stage Multi-Person Holistic Human Motion Capture

An end-to-end, one-stage system that uses temporally consistent queries to capture every person's whole-body motion from monocular video without separate detectors or trackers.

CVPR 2025
LeanGaussian paper teaser
LeanGaussian: Breaking Pixel or Point Cloud Correspondence in Modeling 3D Gaussians

A deformable-Transformer method that directly models each query as a 3D Gaussian, removing pixel and point-cloud correspondence for compact, efficient single-view reconstruction.

CVPR 2025
MVHumanNet paper teaser
MVHumanNet: A Large-scale Dataset of Multi-view Daily Dressing Human Captures

A large-scale multi-view human dataset with 4,500 identities, 9,000 outfits, 60,000 motion sequences, and 645 million richly annotated frames.

CVPR 2024
HMNeRFBench paper teaser
HMNeRFBench: A Comprehensive Benchmark for Neural Human Radiance Fields

A unified benchmark for fairly evaluating human NeRFs across challenging scenes, with cross-subject tests and analyses of animatability and generalizability.

NeurIPS 2023
Global pose features paper teaser
Learning Global Pose Features in Graph Convolutional Networks for 3D Human Pose Estimation

A 3D pose-estimation GCN that adds a global node and heterogeneous multi-task learning to combine joint-local features with global pose attributes.

ACCV 2020
Weight sharing paper teaser
A Comprehensive Study of Weight Sharing in Graph Networks for 3D Human Pose Estimation

A systematic study that derives and evaluates eight GCN weight-sharing schemes for modeling distinct body-joint relationships in 3D pose estimation.

ECCV 2020

Services

Reviewer · IJCV, NeurIPS, CVPR, ICCV, ECCV