← Search

Xu Zheng

39 accepted papers

2026

Denoise and Align: Towards Source-Free UDA for Robust Panoramic Semantic Segmentation

CVPR 2026

Panoramic semantic segmentation is pivotal for comprehensive 360deg scene understanding in critical applications like autonomous driving and virtual reality. However, progress in this domain is constrained by two key challenges: the severe geometric distortions inherent in panoramic projections and

Cited by 0SourcecodeScholar
2026

DiMeR: Disentangled Mesh Reconstruction Model with Normal-only Geometry Training

ICLR 2026poster

We propose DiMeR, a novel geometry-texture disentangled feed-forward model with 3D supervision for sparse-view mesh reconstruction. Existing methods confront two persistent obstacles: (i) textures can conceal geometric errors, i.e., visually plausible images can be rendered even with wrong geometry,…

Cited by 0SourcecodeScholar
2026

Efficient Degradation-agnostic Image Restoration via Channel-Wise Functional Decomposition and Manifold Regularization

ICLR 2026poster

Degradation-agnostic image restoration aims to handle diverse corruptions with one unified model, but faces fundamental challenges in balancing efficiency and performance across different degradation types. Existing approaches either sacrifice efficiency for versatility or fail to capture the distin…

Cited by 0SourcecodeScholar
2026

EgoNight: Towards Egocentric Vision Understanding at Night with a Challenging Benchmark

ICLR 2026poster

Most existing benchmarks for egocentric vision understanding focus primarily on daytime scenarios, overlooking the low-light conditions that are inevitable in real-world applications. To investigate this gap, we present EgoNight, the first comprehensive benchmark for nighttime egocentric vision, wit…

Cited by 0SourcecodeScholar
2026

Explanation-Preserving Augmentation for Semi-Supervised Graph Representation Learning

AAAI 2026technical

Self-supervised graph representation learning (GRL) typically generates paired graph augmentations from each graph to infer similar representations for augmentations of the same graph, but distinguishable representations for different graphs. While effective augmentation requires both semantics-pres

Cited by 0SourcePDFScholar
2026

FERD: Fairness-Enhanced Data-Free Adversarial Robustness Distillation

ICLR 2026poster

Data-Free Robustness Distillation (DFRD) aims to transfer the robustness from the teacher to the student without accessing the training data. While existing methods focus on overall robustness, they overlook the robust fairness issues, leading to severe disparity of robustness across different categ…

Cited by 0SourceScholar
2026

Grounding Generative Planners in Verifiable Logic: A Hybrid Architecture for Trustworthy Embodied AI

ICLR 2026poster

While Large Language Models (LLMs) show immense promise as planners for embodied AI, their stochastic nature and lack of formal reasoning capabilities prevent the strict safety guarantees required for physical deployment. Current approaches fall short: they either rely on other unreliable LLMs for s…

Cited by 0SourceScholar
2026

Multimodal Robust Prompt Distillation for 3D Point Cloud Models

AAAI 2026technical

Adversarial attacks pose a significant threat to learning-based 3D point cloud models, critically undermining their reliability in security-sensitive applications. Existing defense methods often suffer from (1) high computational overhead and (2) poor generalization ability across diverse attack typ

Cited by 0SourcePDFScholar
2026

Rethinking Expressivity and Degradation-Awareness in Attention for All-in-One Blind Image Restoration

ICLR 2026poster

All-in-one image restoration (IR) aims to recover high-quality images from diverse degradations, which in real-world settings are often mixed and unknown. Unlike single-task IR, this problem requires a model to approximate a family of heterogeneous inverse functions, making it fundamentally more cha…

Cited by 0SourceScholar
2026

SatireDecoder: Visual Cascaded Decoupling for Enhancing Satirical Image Comprehension

AAAI 2026technical

Satire, a form of artistic expression combining humor with implicit critique, holds significant social value by illuminating societal issues. Despite its cultural and societal significance, satire comprehension, particularly in purely visual forms, remains a challenging task for current vision-langu

Cited by 0SourcePDFScholar
2026

Towards Robust Multi-Modal Semantic Segmentation with Teacher-Student Framework and Hybrid Prototype Distillation

CVPR 2026

Multimodal semantic segmentation (MMSS) faces significant challenges in real-world applications due to incomplete, degraded, or missing sensor data. To address this, we propose RobustSeg, an efficient teacher-student framework that enhances model robustness under missing-modality conditions while ma

Cited by 0SourceScholar
2025

A Survey of Mathematical Reasoning in the Era of Multimodal Large Language Model: Benchmark, Method & Challenges

ACL 2025finding

Mathematical reasoning, a core aspect of human cognition, is vital across many domains, from educational problem-solving to scientific advancements. As artificial general intelligence (AGI) progresses, integrating large language models (LLMs) with mathematical reasoning tasks is becoming increasingl…

Cited by 0SourcePDFScholar
2025

CIARD: Cyclic Iterative Adversarial Robustness Distillation

ICCV 2025poster

Adversarial robustness distillation (ARD) aims to transfer both performance and robustness from teacher model to lightweight student model, enabling resilient performance on resource-constrained scenarios. Though existing ARD approaches enhance student model's robustness, the inevitable by-product l…

2025

Domain-RAG: Retrieval-Guided Compositional Image Generation for Cross-Domain Few-Shot Object Detection

NeurIPS 2025poster

Cross-Domain Few-Shot Object Detection (CD-FSOD) aims to detect novel objects with only a handful of labeled samples from previously unseen domains. While data augmentation and generative methods have shown promise in few-shot learning, their effectiveness for CD-FSOD remains unclear due to the need…

Cited by 0SourcecodeScholar
2025

Don't Just Chase “Highlighted Tokens” in MLLMs: Revisiting Visual Holistic Context Retention

NeurIPS 2025poster

Despite their powerful capabilities, multimodal large language models (MLLMs) suffer from considerable computational overhead due to their reliance on massive visual tokens. Recent studies have explored token pruning to alleviate this problem, which typically uses text-vision cross-attention or [CLS…

Cited by 0SourceScholar
2025

F-Fidelity: A Robust Framework for Faithfulness Evaluation of Explainable AI

ICLR 2025poster

Recent research has developed a number of eXplainable AI (XAI) techniques, such as gradient-based approaches, input perturbation-base methods, and black-box explanation methods. While these XAI techniques can extract meaningful insights from deep learning models, how to properly evaluate them remain…

Cited by 0SourcePDFScholar
2025

MMUnlearner: Reformulating Multimodal Machine Unlearning in the Era of Multimodal Large Language Models

ACL 2025finding

Recent progress in Machine Unlearning (MU) has introduced solutions for the selective removal of private or sensitive information encoded within deep neural networks. Nonetheless, MU for Multimodal Large Language Models (MLLMs) remains in its nascent phase. Therefore, we propose to **reformulate the…

2025

OmniSAM: Omnidirectional Segment Anything Model for UDA in Panoramic Semantic Segmentation

ICCV 2025poster

Segment Anything Model 2 (SAM2) has emerged as a strong base model in various pinhole imaging segmentation tasks. However, when applying it to 360^\circ domain, the significant field-of-view (FoV) gap between pinhole (70^\circ x70^\circ) and panoramic images (180^\circ x360^\circ) poses unique chall…

Cited by 0SourcePDFScholar
2025

RealRAG: Retrieval-augmented Realistic Image Generation via Self-reflective Contrastive Learning

ICML 2025poster

Recent text-to-image generative models, e.g., Stable Diffusion V3 and Flux, have achieved notable progress. However, these models are strongly restricted to their limited knowledge, a.k.a., their own fixed parameters, that are trained with closed datasets. This leads to significant hallucinations or…

Cited by 4SourcePDFScholar
2025

Reducing Unimodal Bias in Multi-Modal Semantic Segmentation with Multi-Scale Functional Entropy Regularization

ICCV 2025poster

Fusing and balancing multi-modal inputs from novel sensors for dense prediction tasks, particularly semantic segmentation, is critically important yet remains a significant challenge. One major limitation is the tendency of multi-modal frameworks to over-rely on easily learnable modalities, a phenom…

Cited by 0SourcePDFScholar
2025

Unlocking Constraints: Source-Free Occlusion-Aware Seamless Segmentation

ICCV 2025poster

Panoramic image processing is essential for omni-context perception, yet faces constraints like distortions, perspective occlusions, and limited annotations. Previous unsupervised domain adaptation methods transfer knowledge from labeled pinhole data to unlabeled panoramic images, but they require a…

2025

Unveiling the Potential of Segment Anything Model 2 for RGB-Thermal Semantic Segmentation with Language Guidance

IROS 2025

The perception capability of robotic systems relies on the richness of the dataset. Although Segment Anything Model 2 (SAM2), trained on large datasets, demonstrates strong perception potential in perception tasks, its inherent training paradigm prevents it from being suitable for RGB-T tasks. To ad

Cited by 11SourcecodeScholar
2024

Chasing Day and Night: Towards Robust and Efficient All-Day Object Detection Guided by an Event Camera

ICRA 2024poster

The ability to detect objects in all lighting (i.e., normal-, over-, and under-exposed) conditions is crucial for real-world applications, such as self-driving. Traditional RGB-based detectors often fail under such varying lighting conditions. Therefore, recent works utilize novel event cameras to s…

Cited by 18SourcecodeScholar
2024

EventBind: Learning a Unified Representation to Bind Them All for Event-based Open-world Understanding

ECCV 2024poster

"In this paper, we propose EventBind, a novel and effective framework that unleashes the potential of vision-language models (VLMs) for event-based recognition to compensate for the lack of large-scale event-based datasets. In particular, due to the distinct modality gap with the image-text data and…

Cited by 9SourcePDFScholar
2024

EventDance: Unsupervised Source-free Cross-modal Adaptation for Event-based Object Recognition

CVPR 2024poster

In this paper we make the first attempt at achieving the cross-modal (i.e. image-to-events) adaptation for event-based object recognition without accessing any labeled source image data owning to privacy and commercial issues. Tackling this novel problem is non-trivial due to the novelty of event ca…

Cited by 11SourcePDFScholar
2024

ExACT: Language-guided Conceptual Reasoning and Uncertainty Estimation for Event-based Action Recognition and More

CVPR 2024highlight

Event cameras have recently been shown beneficial for practical vision tasks such as action recognition thanks to their high temporal resolution power efficiency and reduced privacy concerns. However current research is hindered by 1) the difficulty in processing events because of their prolonged du…

Cited by 23SourcePDFScholar
2024

GoodSAM: Bridging Domain and Capacity Gaps via Segment Anything Model for Distortion-aware Panoramic Semantic Segmentation

CVPR 2024poster

This paper tackles a novel yet challenging problem: how to transfer knowledge from the emerging Segment Anything Model (SAM) -- which reveals impressive zero-shot instance segmentation capacity -- to learn a compact panoramic semantic segmentation model i.e. student without requiring any labeled dat…

Cited by 7SourcePDFScholar
2024

Parametric Augmentation for Time Series Contrastive Learning

ICLR 2024poster

Modern techniques like contrastive learning have been effectively used in many areas, including computer vision, natural language processing, and graph-structured data. Creating positive examples that assist the model in learning robust and discriminative representations is a crucial stage in contra…

2024

Semantics Distortion and Style Matter: Towards Source-free UDA for Panoramic Segmentation

CVPR 2024poster

This paper addresses an interesting yet challenging problem-- source-free unsupervised domain adaptation (SFUDA) for pinhole-to-panoramic semantic segmentation--given only a pinhole image-trained model (i.e. source) and unlabeled panoramic images (i.e. target). Tackling this problem is nontrivial du…

Cited by 14SourcePDFScholar
2024

TimeX++: Learning Time-Series Explanations with Information Bottleneck

ICML 2024poster

Explaining deep learning models operating on time series data is crucial in various applications of interest which require interpretable and transparent insights from time series signals. In this work, we investigate this problem from an information theoretic perspective and show that most existing…

2024

Towards Robust Fidelity for Evaluating Explainability of Graph Neural Networks

ICLR 2024poster

Graph Neural Networks (GNNs) are neural models that leverage the dependency structure in graphical data via message passing among the graph nodes. GNNs have emerged as pivotal architectures in analyzing graph-structured data, and their expansive application in sensitive domains requires a comprehens…

2024

Transformer-CNN Cohort: Semi-supervised Semantic Segmentation by the Best of Both Students

ICRA 2024poster

The popular methods for semi-supervised semantic segmentation mostly adopt a unitary network model using convolutional neural networks (CNNs) and enforce consistency of the model’s predictions over perturbations applied to the inputs or model. However, such a learning paradigm suffers from two criti…

Cited by 19SourcecodeScholar
2024

UniBind: LLM-Augmented Unified and Balanced Representation Space to Bind Them All

CVPR 2024poster

We present UniBind a flexible and efficient approach that learns a unified representation space for seven diverse modalities-- images text audio point cloud thermal video and event data. Existing works eg. ImageBind treat the image as the central modality and build an image-centered representation s…

Cited by 13SourcePDFScholar
2023

A Good Student is Cooperative and Reliable: CNN-Transformer Collaborative Learning for Semantic Segmentation

ICCV 2023poster

In this paper, we strive to answer the question 'how to collaboratively learn convolutional neural network (CNN)-based and vision transformer (ViT)-based models by selecting and exchanging the reliable knowledge between them for semantic segmentation?' Accordingly, we propose an online knowledge dis…

Cited by 36PDFScholar
2023

Both Style and Distortion Matter: Dual-Path Unsupervised Domain Adaptation for Panoramic Semantic Segmentation

CVPR 2023poster

The ability of scene understanding has sparked active research for panoramic image semantic segmentation. However, the performance is hampered by distortion of the equirectangular projection (ERP) and a lack of pixel-wise annotations. For this reason, some works treat the ERP and pinhole images equa…

Cited by 36SourcePDFScholar
2023

Look at the Neighbor: Distortion-aware Unsupervised Domain Adaptation for Panoramic Semantic Segmentation

ICCV 2023poster

Endeavors have been recently made to transfer knowledge from the labeled pinhole image domain to the unlabeled panoramic image domain via Unsupervised Domain Adaptation (UDA). The aim is to tackle the domain gaps caused by the style disparities and distortion problem of the non-uniformly distributed…

Cited by 25PDFScholar
2021

An Improved Mean Teacher Based Method for Large Scale Weakly Labeled Semi-Supervised Sound Event Detection

ICASSP 2021accepted

This paper presents an improved mean teacher (MT) based method for large-scale weakly labeled semi-supervised sound event detection (SED), by focusing on learning a better student model. Two main improvements are proposed based on the authors’ previous perturbation based MT method. Firstly, an event…

Cited by 26SourceScholar