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In this work, the case of semantic segmentation on a small image dataset (simulated by 1000 randomly selected images from PASCAL VOC 2012), where only weak supervision signals (scribbles from user interaction) are available is studied.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Ahmadreza Jeddi

Visual recognition research often assumes a sufficient resolution of the region of interest (ROI). That is usually violated in practice, inspiring us to explore the Very Low Resolution Recognition (VLRR) problem. Typically, the ROI in a…

Computer Vision and Pattern Recognition · Computer Science 2016-04-04 Zhangyang Wang , Shiyu Chang , Yingzhen Yang , Ding Liu , Thomas S. Huang

The rapid development of deep learning has made a great progress in image segmentation, one of the fundamental tasks of computer vision. However, the current segmentation algorithms mostly rely on the availability of pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2023-02-16 Wei Shen , Zelin Peng , Xuehui Wang , Huayu Wang , Jiazhong Cen , Dongsheng Jiang , Lingxi Xie , Xiaokang Yang , Qi Tian

Fine-grained visual categorization is to recognize hundreds of subcategories belonging to the same basic-level category, which is a highly challenging task due to the quite subtle and local visual distinctions among similar subcategories.…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Xiangteng He , Yuxin Peng

Controlling the generative model to adapt a new domain with limited samples is a difficult challenge and it is receiving increasing attention. Recently, methods based on meta-learning have shown promising results for few-shot domain…

Computation and Language · Computer Science 2023-09-07 Pengsen Cheng , Jinqiao Dai , Jiamiao Liu , Jiayong Liu , Peng Jia

Weakly Supervised Semantic Segmentation (WSSS) relying only on image-level supervision is a promising approach to deal with the need for Segmentation networks, especially for generating a large number of pixel-wise masks in a given dataset.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Bharath Srinivas Prabakaran , Erik Ostrowski , Muhammad Shafique

We study constrained reinforcement learning (CRL) from a novel perspective by setting constraints directly on state density functions, rather than the value functions considered by previous works. State density has a clear physical and…

Machine Learning · Computer Science 2021-06-25 Zengyi Qin , Yuxiao Chen , Chuchu Fan

Surgical scene segmentation is fundamentally crucial for prompting cognitive assistance in robotic surgery. However, pixel-wise annotating surgical video in a frame-by-frame manner is expensive and time consuming. To greatly reduce the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Yang Yu , Zixu Zhao , Yueming Jin , Guangyong Chen , Qi Dou , Pheng-Ann Heng

Accurate segmentation of nodules in both 2D breast ultrasound (BUS) and 3D automated breast ultrasound (ABUS) is crucial for clinical diagnosis and treatment planning. Therefore, developing an automated system for nodule segmentation can…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Yuhao Huang , Ao Chang , Haoran Dou , Xing Tao , Xinrui Zhou , Yan Cao , Ruobing Huang , Alejandro F Frangi , Lingyun Bao , Xin Yang , Dong Ni

This paper investigates unsupervised anomaly detection in multivariate time-series data using reinforcement learning (RL) in the latent space of an autoencoder. A significant challenge is the limited availability of anomalous data, often…

Machine Learning · Computer Science 2025-02-11 Saba Sanami , Amir G. Aghdam

Fully-supervised salient object detection (SOD) methods have made great progress, but such methods often rely on a large number of pixel-level annotations, which are time-consuming and labour-intensive. In this paper, we focus on a new…

Computer Vision and Pattern Recognition · Computer Science 2022-09-08 Runmin Cong , Qi Qin , Chen Zhang , Qiuping Jiang , Shiqi Wang , Yao Zhao , Sam Kwong

In real-world scenarios, pixel-level labeling is not always available. Sometimes, we need a semantic segmentation network, and even a visual encoder can have a high compatibility, and can be trained using various types of feedback beyond…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Xie Ting , Ye Huang , Zhilin Liu , Lixin Duan

Robot-assisted catheterization has garnered a good attention for its potentials in treating cardiovascular diseases. However, advancing surgeon-robot collaboration still requires further research, particularly on task-specific automation.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Olatunji Mumini Omisore , Toluwanimi Akinyemi , Anh Nguyen , Lei Wang

We consider the task of learning a classifier for semantic segmentation using weak supervision in the form of image labels which specify the object classes present in the image. Our method uses deep convolutional neural networks (CNNs) and…

Computer Vision and Pattern Recognition · Computer Science 2017-11-07 Qinbin Hou , Puneet Kumar Dokania , Daniela Massiceti , Yunchao Wei , Ming-Ming Cheng , Philip Torr

Text-prompted image segmentation enables fine-grained visual understanding and is critical for applications such as human-computer interaction and robotics. However, existing supervised fine-tuning methods typically ignore explicit…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Lianghui Zhu , Bin Ouyang , Yuxuan Zhang , Tianheng Cheng , Rui Hu , Haocheng Shen , Longjin Ran , Xiaoxin Chen , Li Yu , Wenyu Liu , Xinggang Wang

Recent attention has been devoted to the pursuit of learning semantic segmentation models exclusively from image tags, a paradigm known as image-level Weakly Supervised Semantic Segmentation (WSSS). Existing attempts adopt the Class…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Ye Du , Zehua Fu , Qingjie Liu

Weakly supervised localization aims at finding target object regions using only image-level supervision. However, localization maps extracted from classification networks are often not accurate due to the lack of fine pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Xiaolin Zhang , Yunchao Wei , Yi Yang

This paper addresses semi-supervised semantic segmentation by exploiting a small set of images with pixel-level annotations (strong supervisions) and a large set of images with only image-level annotations (weak supervisions). Most existing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-12 Rumeng Yi , Yaping Huang , Qingji Guan , Mengyang Pu , Runsheng Zhang

Recent progress in Temporal Action Segmentation (TAS) has increasingly relied on complex architectures, which can hinder practical deployment. We present a lightweight dual-loss training framework that improves fine-grained segmentation…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Hinako Mitsuoka , Kazuhiro Hotta

Weakly supervised learning with scribble annotations uses sparse user-drawn strokes to indicate segmentation labels on a small subset of pixels. This annotation reduces the cost of dense pixel-wise labeling, but suffers inherently from…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Yeva Gabrielyan , Varduhi Yeghiazaryan , Irina Voiculescu