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Wentong Li

26 accepted papers

2026

DecoVLN: Decoupling Observation, Reasoning, and Correction for Vision-and-Language Navigation

CVPR 2026

Vision-and-Language Navigation (VLN) requires agents to follow long-horizon instructions and navigate complex 3D environments. However, existing approaches face two major challenges: constructing an effective long-term memory bank and overcoming the compounding errors problem. To address these issue

Cited by 0SourceScholar
2026

Explainable Forensics of Manipulated Segments in Untrimmed Long Videos

ICML 2026poster

The rapid advancement of AI-driven video generation has transformed content creation, while simultaneously increasing the risk of misinformation through localized manipulations in long-form videos. Existing video forensic methods predominantly operate on short, independent clips, and thus fail to ca…

Cited by 0SourceScholar
2026

Instruction Decomposition and Action Alignment for Vision-Language Navigation

ICML 2026poster

Vision-and-Language Navigation (VLN) empowered by Multimodal Large Language Models (MLLMs) is promise, yet remains challenged by long-horizon tasks with complex user instructions. Existing approaches that continuously condition on full instructions incur high latency due to abundant visual tokens an…

Cited by 0SourceScholar
2026

Point2RBox-v3: Self-Bootstrapping from Point Annotations via Integrated Pseudo-Label Refinement and Utilization

ICLR 2026poster

Driven by the growing need for Oriented Object Detection (OOD), learning from point annotations under a weakly-supervised framework has emerged as a promising alternative to costly and laborious manual labeling. In this paper, we discuss two deficiencies in existing point-supervised methods: ineffic…

Cited by 0SourcecodeScholar
2026

Text-guided Controllable Diffusion for Realistic Camouflage Images Generation

AAAI 2026technical

Camouflage Images Generation (CIG) is an emerging research area that focuses on synthesizing images in which objects are harmoniously blended and exhibit high visual consistency with their surroundings. Existing methods perform CIG by either fusing objects into specific backgrounds or outpainting th

Cited by 0SourcePDFScholar
2026

VisionTrim: Unified Vision Token Compression for Training-Free MLLM Acceleration

ICLR 2026poster

Multimodal large language models (MLLMs) suffer from high computational costs due to excessive visual tokens, particularly in high-resolution and video-based scenarios. Existing token reduction methods typically focus on isolated pipeline components and often neglect textual alignment, leading to pe…

Cited by 0SourcecodeScholar
2025

EOC-Bench: Can MLLMs Identify, Recall, and Forecast Objects in an Egocentric World?

NeurIPS 2025poster

The emergence of multimodal large language models (MLLMs) has driven breakthroughs in egocentric vision applications. These applications necessitate persistent, context-aware understanding of objects, as users interact with tools in dynamic and cluttered environments. However, existing embodied ben…

Cited by 0SourceScholar
2025

Inst3D-LMM: Instance-Aware 3D Scene Understanding with Multi-modal Instruction Tuning

CVPR 2025highlight

Despite encouraging progress in 3D scene understanding, it remains challenging to develop an effective Large Multi-modal Model (LMM) that is capable of understanding and reasoning in complex 3D environments. Most previous methods typically encode 3D point and 2D image features separately, neglecting…

2025

MUVR: A Multi-Modal Untrimmed Video Retrieval Benchmark with Multi-Level Visual Correspondence

NeurIPS 2025poster

We propose the Multi-modal Untrimmed Video Retrieval task, along with a new benchmark (MUVR) to advance video retrieval for long-video platforms. MUVR aims to retrieve untrimmed videos containing relevant segments using multi-modal queries. It has the following features: **1) Practical retrieval par…

Cited by 0SourcecodeScholar
2025

OrderChain: Towards General Instruct-Tuning for Stimulating the Ordinal Understanding Ability of MLLM

ICCV 2025poster

Despite the remarkable progress of multimodal large language models (MLLMs), they continue to face challenges in achieving competitive performance on ordinal regression (OR; a.k.a. ordinal classification). To address this issue, this paper presents OrderChain, a novel and general prompting paradigm…

2025

PointLoRA: Low-Rank Adaptation with Token Selection for Point Cloud Learning

CVPR 2025poster

Self-supervised representation learning for point cloud has demonstrated effectiveness in improving pre-trained model performance across diverse tasks. However, as pre-trained models grow in complexity, fully fine-tuning them for downstream applications demands substantial computational and storage…

2025

Reliable and Calibrated Semantic Occupancy Prediction by Hybrid Uncertainty Learning

IJCAI 2025

Vision-centric semantic occupancy prediction plays a crucial role in autonomous driving, which requires accurate and reliable predictions from low-cost sensors. Although having notably narrowed the accuracy gap with LiDAR, there is still few research effort to explore the reliability and calibration

Cited by 0SourcePDFScholar
2025

Scalable Autoregressive Monocular Depth Estimation

CVPR 2025poster

This paper proposes a new autoregressive model as an effective and scalable monocular depth estimator. Our idea is simple: We tackle the monocular depth estimation (MDE) task with an autoregressive prediction paradigm, based on two core designs. First, our depth autoregressive model (DAR) treats the…

2025

Uncertainty-Instructed Structure Injection for Generalizable HD Map Construction

CVPR 2025poster

Reliable high-definition (HD) map construction is crucial for the driving safety of autonomous vehicles. While recent studies demonstrate improved performance, their generalization capability across unfamiliar driving scenes remains unexplored. To tackle this issue, we propose UIGenMap, an uncertain…

2025

VideoRefer Suite: Advancing Spatial-Temporal Object Understanding with Video LLM

CVPR 2025poster

Video Large Language Models (Video LLMs) have recently exhibited remarkable capabilities in general video understanding.However, they mainly focus on holistic comprehension and struggle with capturing fine-grained spatial and temporal details. Besides, the lack of high-quality object-level video ins…

2024

Fine-Grained Multi-View Hand Reconstruction Using Inverse Rendering

AAAI 2024technical

Reconstructing high-fidelity hand models with intricate textures plays a crucial role in enhancing human-object interaction and advancing real-world applications. Despite the state-of-the-art methods excelling in texture generation and image rendering, they often face challenges in accurately captur…

2024

Label-efficient Semantic Scene Completion with Scribble Annotations

IJCAI 2024poster

Semantic scene completion aims to infer the 3D geometric structures with semantic classes from camera or LiDAR, which provide essential occupancy information in autonomous driving. Prior endeavors concentrate on constructing the network or benchmark in a fully supervised manner. While the dense occu…

2024

MGMap: Mask-Guided Learning for Online Vectorized HD Map Construction

CVPR 2024poster

Currently high-definition (HD) map construction leans towards a lightweight online generation tendency which aims to preserve timely and reliable road scene information. However map elements contain strong shape priors. Subtle and sparse annotations make current detection-based frameworks ambiguous…

2024

Not All Voxels Are Equal: Hardness-Aware Semantic Scene Completion with Self-Distillation

CVPR 2024poster

Semantic scene completion also known as semantic occupancy prediction can provide dense geometric and semantic information for autonomous vehicles which attracts the increasing attention of both academia and industry. Unfortunately existing methods usually formulate this task as a voxel-wise classif…

2024

Osprey: Pixel Understanding with Visual Instruction Tuning

CVPR 2024poster

Multimodal large language models (MLLMs) have recently achieved impressive general-purpose vision-language capabilities through visual instruction tuning. However current MLLMs primarily focus on image-level or box-level understanding falling short in achieving fine-grained vision-language alignment…

2023

H2RBox: Horizontal Box Annotation is All You Need for Oriented Object Detection

ICLR 2023poster

Oriented object detection emerges in many applications from aerial images to autonomous driving, while many existing detection benchmarks are annotated with horizontal bounding box only which is also less costive than fine-grained rotated box, leading to a gap between the readily available training…

2023

Label-efficient Segmentation via Affinity Propagation

NeurIPS 2023poster

Weakly-supervised segmentation with label-efficient sparse annotations has attracted increasing research attention to reduce the cost of laborious pixel-wise labeling process, while the pairwise affinity modeling techniques play an essential role in this task. Most of the existing approaches focus o…

2023

LiDAR2Map: In Defense of LiDAR-Based Semantic Map Construction Using Online Camera Distillation

CVPR 2023poster

Semantic map construction under bird's-eye view (BEV) plays an essential role in autonomous driving. In contrast to camera image, LiDAR provides the accurate 3D observations to project the captured 3D features onto BEV space inherently. However, the vanilla LiDAR-based BEV feature often contains man…

2023

Point2Mask: Point-supervised Panoptic Segmentation via Optimal Transport

ICCV 2023poster

Weakly-supervised image segmentation has recently attracted increasing research attentions, aiming to avoid the expensive pixel-wise labeling. In this paper, we present an effective method, namely Point2Mask, to achieve high-quality panoptic prediction using only a single random point annotation per…

Cited by 27PDFcodeScholar
2022

Box-Supervised Instance Segmentation with Level Set Evolution

ECCV 2022poster

"In contrast to the fully supervised methods using pixel-wise mask labels, box-supervised instance segmentation takes advantage of the simple box annotations, which has recently attracted a lot of research attentions. In this paper, we propose a novel single-shot box-supervised instance segmentation…