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Related papers: SAMTok: Representing Any Mask with Two Words

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To build scalable models for challenging real-world tasks, it is important to learn from diverse, multi-modal data in various forms (e.g., videos, text, and images). Among the existing works, a plethora of them have focused on leveraging…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Jacob Zhiyuan Fang , Skyler Zheng , Vasu Sharma , Robinson Piramuthu

Image-text models excel at image-level tasks but struggle with detailed visual understanding. While these models provide strong visual-language alignment, segmentation models like SAM2 offer precise spatial boundaries for objects. To this…

Computer Vision and Pattern Recognition · Computer Science 2025-11-07 Yao Xiao , Qiqian Fu , Heyi Tao , Yuqun Wu , Zhen Zhu , Derek Hoiem

This work presents Adaptive Local-then-Global Merging (ALGM), a token reduction method for semantic segmentation networks that use plain Vision Transformers. ALGM merges tokens in two stages: (1) In the first network layer, it merges…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Narges Norouzi , Svetlana Orlova , Daan de Geus , Gijs Dubbelman

Recent advances in Large Vision-Language Models (LVLMs) have enabled general-purpose vision tasks through visual instruction tuning. While existing LVLMs can generate segmentation masks from text prompts for single images, they struggle…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Kiet A. Nguyen , Adheesh Juvekar , Tianjiao Yu , Muntasir Wahed , Ismini Lourentzou

Discrete video VAEs underpin modern text-to-video generation and video understanding systems, yet existing tokenizers typically learn visual codebooks at a single scale with limited vocabularies and shallow language supervision, leading to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Onkar Susladkar , Tushar Prakash , Adheesh Juvekar , Kiet A. Nguyen , Dong-Hwan Jang , Inderjit S Dhillon , Ismini Lourentzou

Large Language Models (LLMs) have exhibited exceptional performance across a spectrum of natural language processing tasks. However, their substantial sizes pose considerable challenges, particularly in computational demands and inference…

Computation and Language · Computer Science 2025-06-03 Guoxuan Chen , Han Shi , Jiawei Li , Yihang Gao , Xiaozhe Ren , Yimeng Chen , Xin Jiang , Zhenguo Li , Weiyang Liu , Chao Huang

PSALM is a powerful extension of the Large Multi-modal Model (LMM) to address the segmentation task challenges. To overcome the limitation of the LMM being limited to textual output, PSALM incorporates a mask decoder and a well-designed…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Zheng Zhang , Yeyao Ma , Enming Zhang , Xiang Bai

Reading dense text and locating objects within images are fundamental abilities for Large Vision-Language Models (LVLMs) tasked with advanced jobs. Previous LVLMs, including superior proprietary models like GPT-4o, have struggled to excel…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Ya-Qi Yu , Minghui Liao , Jiwen Zhang , Jihao Wu

We introduce VideoLISA, a video-based multimodal large language model designed to tackle the problem of language-instructed reasoning segmentation in videos. Leveraging the reasoning capabilities and world knowledge of large language…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Zechen Bai , Tong He , Haiyang Mei , Pichao Wang , Ziteng Gao , Joya Chen , Lei Liu , Zheng Zhang , Mike Zheng Shou

This paper proposes a novel transformer-based framework that aims to enhance weakly supervised semantic segmentation (WSSS) by generating accurate class-specific object localization maps as pseudo labels. Building upon the observation that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Lian Xu , Mohammed Bennamoun , Farid Boussaid , Hamid Laga , Wanli Ouyang , Dan Xu

To effectively reduce the visual tokens in Visual Large Language Models (VLLMs), we propose a novel approach called Window Token Concatenation (WiCo). Specifically, we employ a sliding window to concatenate spatially adjacent visual tokens.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Yifan Li , Wentao Bao , Botao Ye , Zhen Tan , Tianlong Chen , Huan Liu , Yu Kong

Recent Multimodal Large Language Models (MLLMs) have demonstrated strong performance on vision-language understanding tasks, yet their inference efficiency is often hampered by the large number of visual tokens, particularly in…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Jiafei Song , Fengwei Zhou , Jin Qu , Wenjin Jason Li , Tong Wu , Gengjian Xue , Zhikang Zhao , Daomin Wei , Yichao Lu , Bailin Na

Open-vocabulary semantic segmentation aims to assign pixel-level labels to images across an unlimited range of classes. Traditional methods address this by sequentially connecting a powerful mask proposal generator, such as the Segment…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Minhyeok Lee , Suhwan Cho , Jungho Lee , Sunghun Yang , Heeseung Choi , Ig-Jae Kim , Sangyoun Lee

This work presents VTok, a unified video tokenization framework that can be used for both generation and understanding tasks. Unlike the leading vision-language systems that tokenize videos through a naive frame-sampling strategy, we…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Feng Wang , Yichun Shi , Ceyuan Yang , Qiushan Guo , Jingxiang Sun , Alan Yuille , Peng Wang

Language models (LMs) and their extension, vision-language models (VLMs), have achieved remarkable performance across various tasks. However, they still struggle with complex reasoning tasks that require multimodal or multilingual…

Machine Learning · Computer Science 2025-07-09 Wenyi Wu , Zixuan Song , Kun Zhou , Yifei Shao , Zhiting Hu , Biwei Huang

Multimodal image fusion and semantic segmentation are critical for autonomous driving. Despite advancements, current models often struggle with segmenting densely packed elements due to a lack of comprehensive fusion features for guidance…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Daixun Li , Weiying Xie , Mingxiang Cao , Yunke Wang , Yusi Zhang , Leyuan Fang , Yunsong Li , Chang Xu

Open-vocabulary semantic segmentation aims to segment an image into semantic regions according to text descriptions, which may not have been seen during training. Recent two-stage methods first generate class-agnostic mask proposals and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Feng Liang , Bichen Wu , Xiaoliang Dai , Kunpeng Li , Yinan Zhao , Hang Zhang , Peizhao Zhang , Peter Vajda , Diana Marculescu

Self-supervised vision-language pretraining from pure images and text with a contrastive loss is effective, but ignores fine-grained alignment due to a dual-stream architecture that aligns image and text representations only on a global…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Zaid Khan , Vijay Kumar BG , Xiang Yu , Samuel Schulter , Manmohan Chandraker , Yun Fu

Text-to-image retrieval (TIR) aims to find relevant images based on a textual query, but existing approaches are primarily based on whole-image captions and lack interpretability. Meanwhile, referring expression segmentation (RES) enables…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Li-Cheng Shen , Jih-Kang Hsieh , Wei-Hua Li , Chu-Song Chen

Masked diffusion language models (MDLMs) are trained to in-fill positions in randomly masked sequences, in contrast to next-token prediction models. Discussions around MDLMs focus on two benefits: (1) any-order decoding and 2) multi-token…

Machine Learning · Computer Science 2025-10-24 Zachary Horvitz , Raghav Singhal , Hao Zou , Carles Domingo-Enrich , Zhou Yu , Rajesh Ranganath , Kathleen McKeown