About

Actively looking for research internship (Summer 2026) and full-time positions in perception, autonomy, and embodied AI. Feel free to reach out!

I am a Ph.D. student at the University of California, Irvine, advised by Prof. Marco Levorato. My research sits at the intersection of uncertainty-aware perception and sequential decision-making for autonomous systems, asking how a machine can act reliably when the world it observes is incomplete, noisy, or constantly shifting.

I design systems that do not merely perceive, but know what they do not know. My work connects multi-sensor fusion with downstream planning and control, building closed-loop pipelines that remain robust precisely where conventional approaches break down: adverse weather, degraded sensing, and long-tail scenarios. Recent projects span uncertainty-driven BEV SLAM, differentiable risk fields for vision-language-action models, and adaptive split computing for resource-constrained robots.

Before UCI, I developed vision-based inspection systems and small-scale robotic platforms at Tianjin University under Prof. Gang Pan, graduating with the LuKaining Professor Scholarship (Rank 1 / 255). Deploying perception under severely constrained sensing conditions, this work earned a Silver Award at the China International College Students' Entrepreneurship Competition and laid the foundation for my current focus on real-world robustness.

I have translated research into practice through internships at KLA (super-resolution for semiconductor wafer inspection), Qcraft and CATRC (sensor fusion and embedded perception for autonomous driving), and Microsoft (cloud infrastructure engineering), shipping production-grade ML systems across the full stack, from edge deployment to cloud.

News

  • [Jan 2026] Paper SmartFusion-SLAM accepted to ICCPS 2026.
  • [Jun 2025] ML Engineer Intern at KLA — working on super-resolution for semiconductor inspection.
  • [Feb 2025] Paper Sewer Image Super-Resolution with Depth Priors and Its Lightweight Network accepted to CACAIE 2025.
  • [Oct 2024] Silver Award at China International College Students' Entrepreneurship Competition 2024 for PipePro: Intelligent Municipal Pipeline Inspection and Maintenance Platform.
  • [Feb 2024] Paper NaviSplit accepted to WoWMoM 2024.
  • [Sep 2023] Started Ph.D. at UC Irvine, advised by Prof. Marco Levorato.
  • [Mar 2023] Started Research Internship at Qcraft.

Publications

IROS 2026
RiskGuard risk field visualization for VLA trajectory revision
RiskGuard: A Trajectory Revision Method Based on Unified Differentiable Risk Fields for VLA Submitted
Zixia Xia, Marco Levorato
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2026
A trajectory revision framework for vision-language-action models using unified differentiable risk fields to improve safety and reliability of embodied agents.
ICCPS 2026
SmartFusion-SLAM BEV multi-sensor fusion overview
SmartFusion-SLAM trajectory accuracy comparison across weather conditions
SmartFusion-SLAM: From Passive Fusion to Temporal Uncertainty-Aware Sensor Adaptation in BEV SLAM
Zixia Xia, Marco Levorato
IEEE/ACM International Conference on Cyber-Physical Systems (ICCPS), 2026
A reinforcement learning-based BEV SLAM framework that dynamically re-weights LiDAR/Camera/Radar inputs based on real-time uncertainty states, improving trajectory accuracy by 27% in long-tail weather scenarios.
WoWMoM 2024
NaviSplit adaptive split computing system for UAV navigation
NaviSplit multi-branch DNN split policy evaluation
NaviSplit: Dynamic Multi-Branch Split DNNs for Efficient Distributed Autonomous Navigation
Tim K. Johnsen, Zixia Xia, Ian A. Harshbarger, Marco Levorato
IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM), 2024
A deep RL policy for adaptive split computing between UAV and cloud, reducing data transmission by 95% while maintaining >72% depth estimation accuracy for autonomous navigation.
CACAIE 2026
DGNv2 DWT-guided frequency-spatial dual-domain dehazing network architecture
DGNv2 dehazing results on sewer inspection images
DGNv2: A DWT-Guided Frequency-Spatial Dual-Domain Dehazing Network for Sewer Inspection Images Submitted
Gang Pan, Zhijie Sui, Zixia Xia, Chao Kang, Di Sun
Computer-Aided Civil and Infrastructure Engineering (CACAIE), 2026
A dual-domain dehazing network guided by Discrete Wavelet Transform for improving sewer inspection image quality, with contrastive regularization for structural detail preservation.
CACAIE 2025
Sewer Super-Resolution
Sewer super-resolution depth prior integration comparison
Sewer Image Super-Resolution with Depth Priors and Its Lightweight Network
Gang Pan, Chen Wang, Zhijie Sui, Shuai Guo, Yaozhi Lv, Honglie Li, Di Sun, Zixia Xia
Computer-Aided Civil and Infrastructure Engineering (CACAIE), 2025
A lightweight super-resolution network for sewer inspection images incorporating monocular depth priors to enhance spatial detail and structural fidelity.
CACAIE 2023
Structure-Aware Dehazing
SANL-Net architecture with semantic and spatial attention modules
Structure-Aware Dehazing of Sewer Inspection Images Based on Monocular Depth Cues
Zixia Xia, Shuai Guo, Di Sun, Yaozhi Lv, Honglie Li, Gang Pan
Computer-Aided Civil and Infrastructure Engineering (CACAIE), 2023
SANL-Net integrates semantic and spatial attention for structure-preserving sewer image dehazing, using camera calibration and monocular depth cues to synthesize training data. Achieves PSNR 27.28, SSIM 0.8963 with a compact 15.47M-parameter network.

Industry Experience

KLA · Milpitas, CA
Machine Learning Engineer Intern
Built a physics-based synthetic data generation pipeline simulating optical distortions; fine-tuned RCAN models improving geometric reconstruction robustness by 18%.
Qcraft Inc. · Beijing / Santa Clara
Research Intern · Autonomous Driving
Enhanced CenterNet with adaptive heatmaps and weighted loss, boosting rare-class mAP by 3.1%; engineered a high-precision LiDAR-Camera fusion module with AbsRel < 0.07.
Microsoft Corporation · Suzhou, China
Software Engineer Intern
Implemented PowerShell cmdlets for large-scale Active Directory tenant relocation and built a size-aware handler for cluster load balancing.
China Automotive Technology and Research Center · Tianjin
Research Intern · Autonomous Driving
Deployed lightweight YOLO-V3 on Jetson TX2 for real-time traffic sign detection, reducing model parameters by 32% with comparable accuracy.

Education

University of California, Irvine
Ph.D. in Networked Systems · GPA 3.96 / 4.0
Advisor: Prof. Marco Levorato
Tianjin University
M.S. in Computer Science and Technology
Advisor: Prof. Gang Pan · Research: Image Denoising, Depth Estimation
🏆 LuKaining Professor Scholarship (Rank 1 / 255)
Tianjin University
Minor in Engineering Management
Developed a strong foundation in business and economic thinking
Tianjin University
B.S. in Software Engineering

Teaching

CompSci 116: Computer Photo & Vision
Teaching Assistant
Alexander Berg (Winter 2024) · Charless Fowlkes (Winter 2025, Fall 2025)
CompSci 117: Project in Computer Vision
Teaching Assistant
Alexander Berg (Fall 2023, Fall 2024) · Charless Fowlkes (Spring 2025)