About me

Shuwei Li

My name is Shuwei Li (李书伟). I received my Ph.D. from the National University of Singapore, where I was advised by Prof. Robby T. Tan. Prior to that, I received my bachelor’s degree from Southeast University and my master’s degree from Boston University.

My doctoral research focused on color constancy via deep learning. I find color fascinating because it lies at the boundary between the world as it is and the world as we perceive it.

Outside of research, I find my peace and freedom in driving alone at nightfall.

Publications

[ECCV 2026] UC-VLM: Consistency-Driven Learning for AI-Generated Image Detection with Vision-Language Large Models

Lei Tan, Shuwei Li, Mohan Kankanhalli, Robby T. Tan

The first VLM training framework for AI-generated image detection without reasoning annotations, achieving 96.7% / 82.4% accuracy on GenImage / Chameleon.

[ICML 2026] FUSE: Frequency-domain Unification and Spectral Energy Alignment for Multi-modal Object Re-Identification

Xuanhao Qi, Tom H. Luan, Yukang Zhang, Jinkai Zheng, Su Zhou*, Shuwei Li*, Lei Tan

A multi-modal object re-identification framework that aligns cross-modal representations via frequency-domain unification and spectral energy alignment.

[CVPR 2026] White-Balance First, Adjust Later: Cross-Camera Color Constancy via Vision-Language Evaluation

Shuwei Li, Lei Tan, Robby T. Tan

Reformulates color constancy as an iterative perceptual-feedback process using VLMs, achieving 36.8% reduction in mean angular error and 43.6% in Worst-25% error on the Gehler-Shi dataset.

[AAAI 2026] Aggregating Diverse Cue Experts for AI-Generated Image Detection

Lei Tan, Shuwei Li, Mohan Kankanhalli, Robby T. Tan

Proposes a Mixture-of-Encoder Adapter (MoEA) framework that integrates diverse cues for robust AI-generated image detection, achieving 89.7% average accuracy on GenImage.

[AAAI 2026 (Oral)] Bridging Day and Night: Target-Class Hallucination Suppression in Unpaired Image Translation

Shuwei Li, Lei Tan, Robby T. Tan

The first I2I translation framework that actively detects and suppresses target-class hallucinations using a dual-head discriminator with SAM2 pseudo-labels, improving mAP by +15.5% on BDD100K day-to-night adaptation. Oral presentation.

[CVPR 2024] NightCC: Nighttime Color Constancy via Adaptive Channel Masking

Shuwei Li, Robby T. Tan

An unsupervised domain-adaptation pipeline for nighttime color constancy using Adaptive Channel Masking and a Light Uncertainty module, reducing mean angular error by 21.5% over prior state-of-the-art.

[Arxiv 2022] MIMT: Multi-Illuminant Color Constancy via Multi-Task Local Surface and Light Color Learning

Shuwei Li, Jikai Wang, Michael S. Brown, Robby T. Tan

A multi-task learning framework for color constancy under multiple illuminants via joint local surface and light color estimation.

Photography

When I’m not working, I shoot photos sometimes.