← Search

Hengyu Liu

15 accepted papers

2026

Automated Formalization via Conceptual Retrieval-Augmented LLMs

ICLR 2026poster

Interactive theorem provers (ITPs) require manual formalization, which is labor-intensive and demands expert knowledge. While automated formalization offers a potential solution, it faces two major challenges: model hallucination (e.g., undefined predicates, symbol misuse, and version incompatibilit…

Cited by 0SourcecodeScholar
2026

ID-Crafter: VLM-Grounded Online RL for Compositional Multi-Subject Video Generation

CVPR 2026

Significant progress has been achieved in high-fidelity video synthesis, yet current paradigms often fall short in effectively integrating identity information from multiple subjects. This leads to semantic conflicts and suboptimal performance in preserving identities and interactions, limiting cont

Cited by 0SourceScholar
2026

Position: Reliable AI Needs to Externalize Implicit Knowledge: A Human–AI Collaboration Perspective

ICML 2026poster

This position paper argues that reliable AI requires infrastructure for human validation of implicit knowledge. AI learns from both explicit knowledge (papers, documentation, structured databases) and implicit knowledge (reasoning patterns, debugging processes, intermediate steps). Implicit knowledg…

Cited by 0SourceScholar
2025

ConcealGS: Concealing Invisible Copyright Information in 3D Gaussian Splatting

ICASSP 2025accepted

As 3D Gaussian Splatting (3D-GS) emerges as a promising technique for 3D reconstruction and novel view synthesis, offering superior rendering quality and efficiency, it becomes crucial to ensure secure transmission and copyright protection of 3D assets in anticipation of widespread distribution. Whi…

Cited by 0SourceScholar
2025

FlexGS: Train Once, Deploy Everywhere with Many-in-One Flexible 3D Gaussian Splatting

CVPR 2025poster

3D Gaussian splatting (3DGS) has enabled various applications in 3D scene representation and novel view synthesis due to its efficient rendering capabilities. However, 3DGS demands significant GPU memory, limiting its use on devices with restricted computational resources. Previous approaches have f…

Cited by 0SourcePDFScholar
2025

Hide-in-Motion: Embedding Steganographic Copyright Information into 4D Gaussian Splatting Assets

ICRA 2025

As 4D extensions of 3D Gaussian Splatting (4D-GS) emerge as groundbreaking techniques for dynamic scene reconstruction and novel view synthesis in robotics and computer vision, ensuring the security and trustworthiness of these assets becomes crucial. While steganography has advanced significantly i

Cited by 9SourcecodeScholar
2025

IR3D-Bench: Evaluating Vision-Language Model Scene Understanding as Agentic Inverse Rendering

NeurIPS 2025poster

Vision-language models (VLMs) excel at descriptive tasks, but whether they truly understand scenes from visual observations remains uncertain. We introduce IR3D-Bench, a benchmark challenging VLMs to demonstrate understanding through active creation rather than passive recognition. Grounded in the a…

Cited by 0SourceScholar
2025

InfoBridge: Balanced Multimodal Integration through Conditional Dependency Modeling

ICCV 2025poster

Developing systems that interpret diverse real-world signals remains a fundamental challenge in multimodal learning. Current approaches face significant obstacles from inherent modal heterogeneity. While existing methods attempt to enhance fusion through cross-modal alignment or interaction mechanis…

2025

InstantSplamp: Fast and Generalizable Stenography Framework for Generative Gaussian Splatting

ICLR 2025poster

With the rapid development of large generative models for 3D, especially the evolution from NeRF representations to more efficient Gaussian Splatting, the synthesis of 3D assets has become increasingly fast and efficient, enabling the large-scale publication and sharing of generated 3D objects. Howe…

2025

MetaScope: Optics-Driven Neural Network for Ultra-Micro Metalens Endoscopy

ICCV 2025poster

Miniaturized endoscopy has advanced accurate visual perception within the human body. Prevailing research remains limited to conventional cameras employing convex lenses, where the physical constraints with millimetre-scale thickness impose serious impediments on the micro-level clinical. Recently,…

Cited by 0SourcePDFScholar
2025

OODD: Test-time Out-of-Distribution Detection with Dynamic Dictionary

CVPR 2025poster

Out-of-distribution (OOD) detection remains challenging for deep learning models, particularly when test-time OOD samples differ significantly from training outliers. We propose OODD, a novel test-time OOD detection method that dynamically maintains and updates an OOD dictionary without fine-tuning.…

2025

RobustZero: Enhancing MuZero Reinforcement Learning Robustness to State Perturbations

ICML 2025poster

The MuZero reinforcement learning method has achieved superhuman performance at games, and advances that enable MuZero to contend with complex actions now enable use of MuZero-class methods in real-world decision-making applications. However, some real-world applications are susceptible to state per…

Cited by 0SourcePDFScholar
2025

Track Any Anomalous Object:A Granular Video Anomaly Detection Pipeline

CVPR 2025poster

Video anomaly detection (VAD) is crucial in scenarios such as surveillance and autonomous driving, where timely detection of unexpected activities is essential. Albeit existing methods have primarily focused on detecting anomalous objects in videos--either by identifying anomalous frames or objects-…

Cited by 0SourcePDFScholar
2025

U-KAN Makes Strong Backbone for Medical Image Segmentation and Generation

AAAI 2025technical

U-Net has become a cornerstone in various visual applications such as image segmentation and diffusion probability models. While numerous innovative designs and improvements have been introduced by incorporating transformers or MLPs, the networks are still limited to linearly modeling patterns as we…

2024

Flaws can be Applause: Unleashing Potential of Segmenting Ambiguous Objects in SAM

NeurIPS 2024poster

As the vision foundation models like the Segment Anything Model (SAM) demonstrate potent universality, they also present challenges in giving ambiguous and uncertain predictions. Significant variations in the model output and granularity can occur with simply subtle changes in the prompt, contradict…