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Referring Image Segmentation (RIS) - the problem of identifying objects in images through natural language sentences - is a challenging task currently mostly solved through supervised learning. However, while collecting referred annotation…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Francisco Eiras , Kemal Oksuz , Adel Bibi , Philip H. S. Torr , Puneet K. Dokania

Scribble-supervised medical image segmentation tackles the limitation of sparse masks. Conventional approaches alternate between: labeling pseudo-masks and optimizing network parameters. However, such iterative two-stage paradigm is…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Zefan Yang , Di Lin , Dong Ni , Yi Wang

Realistic image restoration with high texture areas such as removing face masks is challenging. The state-of-the-art deep learning-based methods fail to guarantee high-fidelity, cause training instability due to vanishing gradient problems…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Md Imran Hosen , Md Baharul Islam

Despite the success of transformers on various computer vision tasks, they suffer from excessive memory and computational cost. Some works present dynamic vision transformers to accelerate inference by pruning redundant tokens. A key to…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Fengyuan Shi , Limin Wang

This work studies the use of attention masking in transformer transducer based speech recognition for building a single configurable model for different deployment scenarios. We present a comprehensive set of experiments comparing fixed…

Facial image inpainting, with high-fidelity preservation for image realism, is a very challenging task. This is due to the subtle texture in key facial features (component) that are not easily transferable. Many image inpainting techniques…

Computer Vision and Pattern Recognition · Computer Science 2021-05-10 Jireh Jam , Connah Kendrick , Vincent Drouard , Kevin Walker , Moi Hoon Yap

Diffusion models have shown impressive performance for generative modelling of images. In this paper, we present a novel semantic segmentation method based on diffusion models. By modifying the training and sampling scheme, we show that…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Julia Wolleb , Robin Sandkühler , Florentin Bieder , Philippe Valmaggia , Philippe C. Cattin

Fully supervised deep neural networks for segmentation usually require a massive amount of pixel-level labels which are manually expensive to create. In this work, we develop a multi-task learning method to relax this constraint. We regard…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Rihuan Ke , Aurélie Bugeau , Nicolas Papadakis , Mark Kirkland , Peter Schuetz , Carola-Bibiane Schönlieb

While the fine-grained visual categorization (FGVC) problems have been greatly developed in the past years, the Ultra-fine-grained visual categorization (Ultra-FGVC) problems have been understudied. FGVC aims at classifying objects from the…

Computer Vision and Pattern Recognition · Computer Science 2021-09-17 Zicheng Pan , Xiaohan Yu , Miaohua Zhang , Yongsheng Gao

We address the problem of referring image segmentation that aims to generate a mask for the object specified by a natural language expression. Many recent works utilize Transformer to extract features for the target object by aggregating…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Chang Liu , Henghui Ding , Yulun Zhang , Xudong Jiang

Over the past years, semantic segmentation, as many other tasks in computer vision, benefited from the progress in deep neural networks, resulting in significantly improved performance. However, deep architectures trained with…

Computer Vision and Pattern Recognition · Computer Science 2022-02-02 Guanglei Yang , Enrico Fini , Dan Xu , Paolo Rota , Mingli Ding , Hao Tang , Xavier Alameda-Pineda , Elisa Ricci

Conventional few-shot object segmentation methods learn object segmentation from a few labelled support images with strongly labelled segmentation masks. Recent work has shown to perform on par with weaker levels of supervision in terms of…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Mennatullah Siam , Naren Doraiswamy , Boris N. Oreshkin , Hengshuai Yao , Martin Jagersand

Video object segmentation is a fundamental research problem in computer vision. Recent techniques have often applied attention mechanism to object representation learning from video sequences. However, due to temporal changes in the video…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Quang-Trung Truong , Duc Thanh Nguyen , Binh-Son Hua , Sai-Kit Yeung

Training a Convolutional Neural Network (CNN) for semantic segmentation typically requires to collect a large amount of accurate pixel-level annotations, a hard and expensive task. In contrast, simple image tags are easier to gather. With…

Computer Vision and Pattern Recognition · Computer Science 2019-02-25 Carolina Redondo-Cabrera , Marcos Baptista-Ríos , Roberto J. López-Sastre

Panoptic and instance segmentation networks are often trained with specialized object detection modules, complex loss functions, and ad-hoc post-processing steps to manage the permutation-invariance of the instance masks. This work builds…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Wouter Van Gansbeke , Bert De Brabandere

Two-stage and query-based instance segmentation methods have achieved remarkable results. However, their segmented masks are still very coarse. In this paper, we present Mask Transfiner for high-quality and efficient instance segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Lei Ke , Martin Danelljan , Xia Li , Yu-Wing Tai , Chi-Keung Tang , Fisher Yu

Recent approaches for segmentation have leveraged pretrained generative models as feature extractors, treating segmentation as a downstream adaptation task via indirect feature retrieval. This implicit use suffers from a fundamental…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Yuhuan Yang , Xianwei Zhuang , Yuxuan Cai , Chaofan Ma , Shuai Bai , Jiangchao Yao , Ya Zhang , Junyang Lin , Yanfeng Wang

Existing semantic segmentation approaches either aim to improve the object's inner consistency by modeling the global context, or refine objects detail along their boundaries by multi-scale feature fusion. In this paper, a new paradigm for…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Xiangtai Li , Xia Li , Li Zhang , Guangliang Cheng , Jianping Shi , Zhouchen Lin , Shaohua Tan , Yunhai Tong

Unsupervised anomaly segmentation approaches to pathology segmentation train a model on images of healthy subjects, that they define as the 'normal' data distribution. At inference, they aim to segment any pathologies in new images as…

Image and Video Processing · Electrical Eng. & Systems 2024-06-06 Ziyun Liang , Xiaoqing Guo , J. Alison Noble , Konstantinos Kamnitsas

Face manipulation methods develop rapidly in recent years, whose potential risk to society accounts for the emerging of researches on detection methods. However, due to the diversity of manipulation methods and the high quality of fake…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Zehao Chen , Hua Yang