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Vision Transformers (ViT) have shown their competitive advantages performance-wise compared to convolutional neural networks (CNNs) though they often come with high computational costs. To this end, previous methods explore different…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Cong Wei , Brendan Duke , Ruowei Jiang , Parham Aarabi , Graham W. Taylor , Florian Shkurti

Recently, transformer-based techniques incorporating superpoints have become prevalent in 3D instance segmentation. However, they often encounter an over-segmentation problem, especially noticeable with large objects. Additionally,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Duc Dang Trung Tran , Byeongkeun Kang , Yeejin Lee

Audio-visual segmentation (AVS) aims to segment sound sources in the video sequence, requiring a pixel-level understanding of audio-visual correspondence. As the Segment Anything Model (SAM) has strongly impacted extensive fields of dense…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Juhyeong Seon , Woobin Im , Sebin Lee , Jumin Lee , Sung-Eui Yoon

Recently, transformer-based models have demonstrated remarkable performance on audio-visual segmentation (AVS) tasks. However, their expensive computational cost makes real-time inference impractical. By characterizing attention maps of the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Zili Wang , Qi Yang , Linsu Shi , Jiazhong Yu , Qinghua Liang , Fei Li , Shiming Xiang

Existing approaches to unsupervised video instance segmentation typically rely on motion estimates and experience difficulties tracking small or divergent motions. We present VideoCutLER, a simple method for unsupervised multi-instance…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Xudong Wang , Ishan Misra , Ziyun Zeng , Rohit Girdhar , Trevor Darrell

Intelligent robots need to interact with diverse objects across various environments. The appearance and state of objects frequently undergo complex transformations depending on the object properties, e.g., phase transitions. However, in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Zixuan Chen , Jiaxin Li , Liming Tan , Yejie Guo , Junxuan Liang , Cewu Lu , Yong-Lu Li

In this paper, we propose Contextual Guided Segmentation (CGS) framework for video instance segmentation in three passes. In the first pass, i.e., preview segmentation, we propose Instance Re-Identification Flow to estimate main properties…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Trung-Nghia Le , Tam V. Nguyen , Minh-Triet Tran

Visual segmentation seeks to partition images, video frames, or point clouds into multiple segments or groups. This technique has numerous real-world applications, such as autonomous driving, image editing, robot sensing, and medical…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Xiangtai Li , Henghui Ding , Haobo Yuan , Wenwei Zhang , Jiangmiao Pang , Guangliang Cheng , Kai Chen , Ziwei Liu , Chen Change Loy

Unsupervised Video Object Segmentation (UVOS) refers to the challenging task of segmenting the prominent object in videos without manual guidance. In recent works, two approaches for UVOS have been discussed that can be divided into:…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Seunghoon Lee , Suhwan Cho , Dogyoon Lee , Minhyeok Lee , Sangyoun Lee

This paper addresses the task of segmenting class-agnostic objects in semi-supervised setting. Although previous detection based methods achieve relatively good performance, these approaches extract the best proposal by a greedy strategy,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Daizong Liu , Shuangjie Xu , Xiao-Yang Liu , Zichuan Xu , Wei Wei , Pan Zhou

The attention mechanism is blooming in computer vision nowadays. However, its application to video quality assessment (VQA) has not been reported. Evaluating the quality of in-the-wild videos is challenging due to the unknown of pristine…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Fengchuang Xing , Yuan-Gen Wang , Hanpin Wang , Leida Li , Guopu Zhu

Semi-supervised video object segmentation (VOS) refers to segmenting the target object in remaining frames given its annotation in the first frame, which has been actively studied in recent years. The key challenge lies in finding effective…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Meng Lan , Jing Zhang , Fengxiang He , Lefei Zhang

The recent works on Video Object Segmentation achieved remarkable results by matching dense semantic and instance-level features between the current and previous frames for long-time propagation. Nevertheless, global feature matching…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Volodymyr Fedynyak , Yaroslav Romanus , Bohdan Hlovatskyi , Bohdan Sydor , Oles Dobosevych , Igor Babin , Roman Riazantsev

Recent video recognition models utilize Transformer models for long-range spatio-temporal context modeling. Video transformer designs are based on self-attention that can model global context at a high computational cost. In comparison,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-30 Syed Talal Wasim , Muhammad Uzair Khattak , Muzammal Naseer , Salman Khan , Mubarak Shah , Fahad Shahbaz Khan

Extracting robust feature representation is critical for object re-identification to accurately identify objects across non-overlapping cameras. Although having a strong representation ability, the Vision Transformer (ViT) tends to overfit…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Lei Tan , Pingyang Dai , Jie Chen , Liujuan Cao , Yongjian Wu , Rongrong Ji

Object detection and semantic segmentation are two main themes in object retrieval from high-resolution remote sensing images, which have recently achieved remarkable performance by surfing the wave of deep learning and, more notably,…

Computer Vision and Pattern Recognition · Computer Science 2018-12-05 Lichao Mou , Xiao Xiang Zhu

We introduce VistaFormer, a lightweight Transformer-based model architecture for the semantic segmentation of remote-sensing images. This model uses a multi-scale Transformer-based encoder with a lightweight decoder that aggregates global…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Ezra MacDonald , Derek Jacoby , Yvonne Coady

The task of action detection aims at deducing both the action category and localization of the start and end moment for each action instance in a long, untrimmed video. While vision Transformers have driven the recent advances in video…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Yuetian Weng , Zizheng Pan , Mingfei Han , Xiaojun Chang , Bohan Zhuang

Video object segmentation (VOS) describes the task of segmenting a set of objects in each frame of a video. In the semi-supervised setting, the first mask of each object is provided at test time. Following the one-shot principle,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Tim Meinhardt , Laura Leal-Taixe

Generating video descriptions automatically is a challenging task that involves a complex interplay between spatio-temporal visual features and language models. Given that videos consist of spatial (frame-level) features and their temporal…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Anoop Cherian , Jue Wang , Chiori Hori , Tim K. Marks