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Xuelian Cheng

10 accepted papers

2026

ColonAdapter: Geometry Estimation through Foundation Model Adaptation for Colonoscopy

ICRA 2026poster

Estimating 3D geometry from monocular colonoscopy images is challenging due to non-Lambertian surfaces, moving light sources, and large textureless regions. While recent 3D geometric foundation models eliminate the need for multi-stage pipelines, their performance deteriorates in clinical scenes. Th…

2026

DiffNR: Diffusion-Enhanced Neural Representation Optimization for Sparse-View 3D Tomographic Reconstruction

AAAI 2026technical

Neural representations (NRs), such as neural fields and 3D Gaussians, effectively model volumetric data in computed tomography (CT) but suffer from severe artifacts under sparse-view settings. To address this, we propose DiffNR, a novel framework that enhances NR optimization with diffusion priors.

Cited by 0SourcePDFScholar
2025

ColonAdapter: Geometry Estimation Through Foundation Model Adaptation for Colonoscopy

RA-L 2025

Estimating 3D geometry from monocular colonoscopy images is challenging due to non-Lambertian surfaces, moving light sources, and large textureless regions. While recent 3D geometric foundation models eliminate the need for multi-stage pipelines, their performance deteriorates in clinical scenes. Th

Cited by 0SourceScholar
2025

MoRE: Unlocking Scalability in Reinforcement Learning for Quadruped Vision-Language-Action Models

ICRA 2025

Developing versatile quadruped robots that can smoothly perform various actions and tasks in real-world environments remains a significant challenge. This paper introduces a novel vision-language-action (VLA) model, mixture of robotic experts (MoRE), for quadruped robots that aim to introduce reinfo

Cited by 24SourceScholar
2025

Seeing Far and Clearly: Mitigating Hallucinations in MLLMs with Attention Causal Decoding

CVPR 2025poster

Recent advancements in multimodal large language models (MLLMs) have significantly improved performance in visual question answering. However, they often suffer from hallucinations. In this work, hallucinations are categorized into two main types: initial hallucinations and snowball hallucinations.…

Cited by 0SourcePDFScholar
2024

OphNet: A Large-Scale Video Benchmark for Ophthalmic Surgical Workflow Understanding

ECCV 2024poster

"Surgical scene perception via videos is critical for advancing robotic surgery, telesurgery, and AI-assisted surgery, particularly in ophthalmology. However, the scarcity of diverse and richly annotated video datasets has hindered the development of intelligent systems for surgical workflow analysi…

2022

Implicit Motion Handling for Video Camouflaged Object Detection

CVPR 2022poster

We propose a new video camouflaged object detection (VCOD) framework that can exploit both short-term dynamics and long-term temporal consistency to detect camouflaged objects from video frames. An essential property of camouflaged objects is that they usually exhibit patterns similar to the backgro…

Cited by 104PDFcodeScholar
2022

Learning Network Architecture for Open-Set Recognition

AAAI 2022technical

Given the incomplete knowledge of classes that exist in the world, Open-set Recognition (OSR) enables networks to identify and reject the unseen classes after training. This problem of breaking the common closed-set assumption is far from being solved. Recent studies focus on designing new losses, n…

2020

Hierarchical Neural Architecture Search for Deep Stereo Matching

NeurIPS 2020poster

To reduce the human efforts in neural network design, Neural Architecture Search (NAS) has been applied with remarkable success to various high-level vision tasks such as classification and semantic segmentation. The underlying idea for the NAS algorithm is straightforward, namely, to allow the netw…