← Search

Longxiang Tang

13 accepted papers

2026

A Vision-Language-Action Model for Adaptive Ultrasound-Guided Needle Insertion and Needle Tracking

ICRA 2026poster

Ultrasound (US)-guided needle insertion is a critical yet challenging procedure due to dynamic imaging conditions and difficulties in needle visualization. Many methods have been proposed for automated needle insertion, but they often rely on hand-crafted pipelines with modular controllers, whose pe…

2026

Towards Sequence Modeling Alignment between Tokenizer and Autoregressive Model

ICLR 2026poster

Autoregressive image generation aims to predict the next token based on previous ones. However, this process is challenged by the bidirectional dependencies inherent in conventional image tokenizations, which creates a fundamental misalignment with the unidirectional nature of autoregressive models.…

Cited by 0SourcecodeScholar
2025

Does Your Vision-Language Model Get Lost in the Long Video Sampling Dilemma?

ICCV 2025poster

The rise of Large Vision-Language Models (LVLMs) has significantly advanced video understanding. However, efficiently processing long videos remains a challenge due to the "Sampling Dilemma": low-density sampling risks missing critical information, while high-density sampling introduces redundancy.…

2025

DreamRelation: Relation-Centric Video Customization

ICCV 2025poster

Relational video customization refers to the creation of personalized videos that depict user-specified relations between two subjects, a crucial task for comprehending real-world visual content. While existing methods can personalize subject appearances and motions, they still struggle with complex…

2025

Hybrid-Level Instruction Injection for Video Token Compression in Multi-modal Large Language Models

CVPR 2025poster

Recent Multi-modal Large Language Models (MLLMs) have been challenged by the computational overhead resulting from massive video frames, often alleviated through compression strategies. However, the visual content is not equally contributed to user instructions, existing strategies (e.g., average po…

2025

InstantSwap: Fast Customized Concept Swapping across Sharp Shape Differences

ICLR 2025poster

Recent advances in Customized Concept Swapping (CCS) enable a text-to-image model to swap a concept in the source image with a customized target concept. However, the existing methods still face the challenges of $\textit{\textbf{inconsistency}}$ and $\textit{\textbf{inefficiency}}$. They struggle t…

2025

Lyra: An Efficient and Speech-Centric Framework for Omni-Cognition

ICCV 2025poster

As Multi-modal Large Language Models (MLLMs) evolve, expanding beyond single-domain capabilities is essential to meet the demands for more versatile and efficient AI. However, previous omni-models have insufficiently explored speech, neglecting its integration with multi-modality. We introduce Lyra,…

2025

RUN: Reversible Unfolding Network for Concealed Object Segmentation

ICML 2025poster

Concealed object segmentation (COS) is a challenging problem that focuses on identifying objects that are visually blended into their background. Existing methods often employ reversible strategies to concentrate on uncertain regions but only focus on the mask level, overlooking the valuable of the…

2025

Reti-Diff: Illumination Degradation Image Restoration with Retinex-based Latent Diffusion Model

ICLR 2025spotlight

Illumination degradation image restoration (IDIR) techniques aim to improve the visibility of degraded images and mitigate the adverse effects of deteriorated illumination. Among these algorithms, diffusion-based models (DM) have shown promising performance but are often burdened by heavy computatio…

2025

The Matrix: Infinite-Horizon World Generation with Real-Time Moving Control

NeurIPS 2025poster

We present The Matrix, a foundational realistic world simulator capable of generating infinitely long 720p high-fidelity real-scene video streams with real-time, responsive control in both first- and third-person perspectives. Trained on limited supervised data from video games like Forza Horizon 5…

Cited by 0SourceScholar
2024

Real-world Image Dehazing with Coherence-based Pseudo Labeling and Cooperative Unfolding Network

NeurIPS 2024spotlight

Real-world Image Dehazing (RID) aims to alleviate haze-induced degradation in real-world settings. This task remains challenging due to the complexities in accurately modeling real haze distributions and the scarcity of paired real-world data. To address these challenges, we first introduce a cooper…

2023

Camouflaged Object Detection With Feature Decomposition and Edge Reconstruction

CVPR 2023poster

Camouflaged object detection (COD) aims to address the tough issue of identifying camouflaged objects visually blended into the surrounding backgrounds. COD is a challenging task due to the intrinsic similarity of camouflaged objects with the background, as well as their ambiguous boundaries. Existi…

Cited by 260SourcePDFScholar
2023

Weakly-Supervised Concealed Object Segmentation with SAM-based Pseudo Labeling and Multi-scale Feature Grouping

NeurIPS 2023poster

Weakly-Supervised Concealed Object Segmentation (WSCOS) aims to segment objects well blended with surrounding environments using sparsely-annotated data for model training. It remains a challenging task since (1) it is hard to distinguish concealed objects from the background due to the intrinsic s…

Cited by 132SourcePDFScholar