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Audio-visual segmentation aims to separate sounding objects from videos by predicting pixel-level masks based on audio signals. Existing methods primarily concentrate on closed-set scenarios and direct audio-visual alignment and fusion,…

Machine Learning · Computer Science 2026-03-31 Shengkai Chen , Yifang Yin , Jinming Cao , Shili Xiang , Zhenguang Liu , Roger Zimmermann

Modern one-stage video instance segmentation networks suffer from two limitations. First, convolutional features are neither aligned with anchor boxes nor with ground-truth bounding boxes, reducing the mask sensitivity to spatial location.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Minghan Li , Shuai Li , Lida Li , Lei Zhang

Vision Language Models (VLMs) provide rich semantic priors but are underexplored in Semi supervised Semantic Segmentation. Recent attempts to integrate VLMs to inject high level semantics overlook the semantic misalignment between visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Numair Nadeem , Saeed Anwar , Muhammad Hamza Asad , Abdul Bais

Open-vocabulary segmentation is the task of segmenting anything that can be named in an image. Recently, large-scale vision-language modelling has led to significant advances in open-vocabulary segmentation, but at the cost of gargantuan…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Laurynas Karazija , Iro Laina , Andrea Vedaldi , Christian Rupprecht

Open-Vocabulary Camouflaged Object Segmentation (OVCOS) seeks to segment and classify camouflaged objects from arbitrary categories, presenting unique challenges due to visual ambiguity and unseen categories.Recent approaches typically…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Kai Zhao , Wubang Yuan , Zheng Wang , Guanyi Li , Xiaoqiang Zhu , Deng-ping Fan , Dan Zeng

Audio-Visual Segmentation (AVS) aims to precisely outline audible objects in a visual scene at the pixel level. Existing AVS methods require fine-grained annotations of audio-mask pairs in supervised learning fashion. This limits their…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Swapnil Bhosale , Haosen Yang , Diptesh Kanojia , Xiatian Zhu

While Video Instance Segmentation (VIS) has seen rapid progress, current approaches struggle to predict high-quality masks with accurate boundary details. Moreover, the predicted segmentations often fluctuate over time, suggesting that…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Lei Ke , Henghui Ding , Martin Danelljan , Yu-Wing Tai , Chi-Keung Tang , Fisher Yu

Video Instance Segmentation (VIS) faces significant annotation challenges due to its dual requirements of pixel-level masks and temporal consistency labels. While recent unsupervised methods like VideoCutLER eliminate optical flow…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Kaixuan Lu , Mehmet Onurcan Kaya , Dim P. Papadopoulos

Open-vocabulary segmentation is a challenging task requiring segmenting and recognizing objects from an open set of categories. One way to address this challenge is to leverage multi-modal models, such as CLIP, to provide image and text…

Computer Vision and Pattern Recognition · Computer Science 2023-11-16 Qihang Yu , Ju He , Xueqing Deng , Xiaohui Shen , Liang-Chieh Chen

Pretrained vision-language models (VLMs), \eg CLIP, are increasingly used to bridge the gap between open- and close-vocabulary recognition in open-vocabulary image segmentation. As VLMs are generally pretrained with low-resolution images…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Yuanbing Zhu , Bingke Zhu , Yingying Chen , Yunfang Niu , Ming Tang , Jinqiao Wang

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

We introduce a novel framework called RefineVIS for Video Instance Segmentation (VIS) that achieves good object association between frames and accurate segmentation masks by iteratively refining the representations using sequence context.…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Andre Abrantes , Jiang Wang , Peng Chu , Quanzeng You , Zicheng Liu

Traditional object detection systems are typically constrained to predefined categories, limiting their applicability in dynamic environments. In contrast, open-vocabulary object detection (OVD) enables the identification of objects from…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Tianyi Zhang , Antoine Simoulin , Kai Li , Sana Lakdawala , Shiqing Yu , Arpit Mittal , Hongyu Fu , Yu Lin

Dual-encoder Vision-Language Models (VLMs) such as CLIP are often characterized as bag-of-words systems due to their poor performance on compositional benchmarks. We argue that this limitation may stem less from deficient representations…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Imanol Miranda , Ander Salaberria , Eneko Agirre , Gorka Azkune

Video Instance Segmentation (VIS) is a multi-task problem performing detection, segmentation, and tracking simultaneously. Extended from image set applications, video data additionally induces the temporal information, which, if handled…

Computer Vision and Pattern Recognition · Computer Science 2021-07-12 Thuy C. Nguyen , Tuan N. Tang , Nam LH. Phan , Chuong H. Nguyen , Masayuki Yamazaki , Masao Yamanaka

Modeling temporal visual context across frames is critical for video instance segmentation (VIS) and other video understanding tasks. In this paper, we propose a fast online VIS model named CrossVIS. For temporal information modeling in…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Shusheng Yang , Yuxin Fang , Xinggang Wang , Yu Li , Chen Fang , Ying Shan , Bin Feng , Wenyu Liu

Face anti-spoofing (FAS) aims to construct a robust system that can withstand diverse attacks. While recent efforts have concentrated mainly on cross-domain generalization, two significant challenges persist: limited semantic understanding…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Kun-Hsiang Lin , Yu-Wen Tseng , Kang-Yang Huang , Jhih-Ciang Wu , Wen-Huang Cheng

The combination of audio and vision has long been a topic of interest in the multi-modal community. Recently, a new audio-visual segmentation (AVS) task has been introduced, aiming to locate and segment the sounding objects in a given…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Shengyi Gao , Zhe Chen , Guo Chen , Wenhai Wang , Tong Lu

In the realm of food computing, segmenting ingredients from images poses substantial challenges due to the large intra-class variance among the same ingredients, the emergence of new ingredients, and the high annotation costs associated…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Xiongwei Wu , Sicheng Yu , Ee-Peng Lim , Chong-Wah Ngo

Weakly supervised instance segmentation reduces the cost of annotations required to train models. However, existing approaches which rely only on image-level class labels predominantly suffer from errors due to (a) partial segmentation of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Qing Liu , Vignesh Ramanathan , Dhruv Mahajan , Alan Yuille , Zhenheng Yang