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Deep neural networks frequently suffer from performance degradation when the training data is long-tailed because several majority classes dominate the training, resulting in a biased model. Recent studies have made a great effort in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Mengke Li , Yiu-ming Cheung , Juyong Jiang

Object frequency in the real world often follows a power law, leading to a mismatch between datasets with long-tailed class distributions seen by a machine learning model and our expectation of the model to perform well on all classes. We…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Muhammad Abdullah Jamal , Matthew Brown , Ming-Hsuan Yang , Liqiang Wang , Boqing Gong

Many objects do not appear frequently enough in complex scenes (e.g., certain handbags in living rooms) for training an accurate object detector, but are often found frequently by themselves (e.g., in product images). Yet, these…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Cheng Zhang , Tai-Yu Pan , Yandong Li , Hexiang Hu , Dong Xuan , Soravit Changpinyo , Boqing Gong , Wei-Lun Chao

When supervising an object detector with weakly labeled data, most existing approaches are prone to trapping in the discriminative object parts, e.g., finding the face of a cat instead of the full body, due to lacking the supervision on the…

Computer Vision and Pattern Recognition · Computer Science 2017-11-28 Siyang Li , Xiangxin Zhu , Qin Huang , Hao Xu , C. -C. Jay Kuo

We propose a simple yet effective instance segmentation framework, termed CondInst (conditional convolutions for instance segmentation). Top-performing instance segmentation methods such as Mask R-CNN rely on ROI operations (typically…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Zhi Tian , Chunhua Shen , Hao Chen

We propose an embarrassingly simple point annotation scheme to collect weak supervision for instance segmentation. In addition to bounding boxes, we collect binary labels for a set of points uniformly sampled inside each bounding box. We…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Bowen Cheng , Omkar Parkhi , Alexander Kirillov

Long-tailed object detection (LTOD) aims to handle the extreme data imbalance in real-world datasets, where many tail classes have scarce instances. One popular strategy is to explore extra data with image-level labels, yet it produces…

Computer Vision and Pattern Recognition · Computer Science 2023-10-19 Lingchen Meng , Xiyang Dai , Jianwei Yang , Dongdong Chen , Yinpeng Chen , Mengchen Liu , Yi-Ling Chen , Zuxuan Wu , Lu Yuan , Yu-Gang Jiang

In real-world scenarios, collected and annotated data often exhibit the characteristics of multiple classes and long-tailed distribution. Additionally, label noise is inevitable in large-scale annotations and hinders the applications of…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Chao Liang , Zongxin Yang , Linchao Zhu , Yi Yang

The fine-tuning paradigm in addressing long-tail learning tasks has sparked significant interest since the emergence of foundation models. Nonetheless, how fine-tuning impacts performance in long-tail learning was not explicitly quantified.…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Jiang-Xin Shi , Tong Wei , Zhi Zhou , Jie-Jing Shao , Xin-Yan Han , Yu-Feng Li

Semi-Supervised Instance Segmentation (SSIS) involves classifying and grouping image pixels into distinct object instances using limited labeled data. This learning paradigm usually faces a significant challenge of unstable performance…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Jianghang Lin , Yilin Lu , Yunhang Shen , Chaoyang Zhu , Shengchuan Zhang , Liujuan Cao , Rongrong Ji

The visual world naturally exhibits an imbalance in the number of object or scene instances resulting in a \emph{long-tailed distribution}. This imbalance poses significant challenges for classification models based on deep learning.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Rahul Vigneswaran , Marc T. Law , Vineeth N. Balasubramanian , Makarand Tapaswi

In this work, we aim at building a simple, direct, and fast instance segmentation framework with strong performance. We follow the principle of the SOLO method of Wang et al. "SOLO: segmenting objects by locations". Importantly, we take one…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Xinlong Wang , Rufeng Zhang , Tao Kong , Lei Li , Chunhua Shen

The successful application of semantic segmentation technology in the real world has been among the most exciting achievements in the computer vision community over the past decade. Although the long-tailed phenomenon has been investigated…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Shan Li , Lu Yang , Pu Cao , Liulei Li , Huadong Ma

Semantic segmentation research has recently witnessed rapid progress, but many leading methods are unable to identify object instances. In this paper, we present Multi-task Network Cascades for instance-aware semantic segmentation. Our…

Computer Vision and Pattern Recognition · Computer Science 2015-12-15 Jifeng Dai , Kaiming He , Jian Sun

Most existing instance segmentation methods only focus on improving performance and are not suitable for real-time scenes such as autonomous driving. This paper proposes a real-time framework that segmenting and detecting 3D objects by…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Shengjie Li , Caiyi Xu , Jianping Xing , Yafei Ning , Yonghong Chen

Obtaining precise instance segmentation masks is of high importance in many modern applications such as robotic manipulation and autonomous driving. Currently, many state of the art models are based on the Mask R-CNN framework which, while…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Namdar Homayounfar , Yuwen Xiong , Justin Liang , Wei-Chiu Ma , Raquel Urtasun

Camouflaged object detection and segmentation is a new and challenging research topic in computer vision. There is a serious issue of lacking data on concealed objects such as camouflaged animals in natural scenes. In this paper, we address…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Thanh-Danh Nguyen , Anh-Khoa Nguyen Vu , Nhat-Duy Nguyen , Vinh-Tiep Nguyen , Thanh Duc Ngo , Thanh-Toan Do , Minh-Triet Tran , Tam V. Nguyen

Instance segmentation models today are very accurate when trained on large annotated datasets, but collecting mask annotations at scale is prohibitively expensive. We address the partially supervised instance segmentation problem in which…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Vighnesh Birodkar , Zhichao Lu , Siyang Li , Vivek Rathod , Jonathan Huang

Large Language Model-based Recommender Systems (LRSs) have recently emerged as a new paradigm in sequential recommendation by directly adopting LLMs as backbones. While LRSs demonstrate strong knowledge utilization and instruction-following…

Information Retrieval · Computer Science 2026-03-16 Jiaming Zhang , Yuyuan Li , Xiaohua Feng , Li Zhang , Longfei Li , Jun Zhou , Chaochao Chen

Pursuing a more coherent scene understanding towards real-time vision applications, single-stage instance segmentation has recently gained popularity, achieving a simpler and more efficient design than its two-stage counterparts. Besides,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Myungchul Kim , Sanghyun Woo , Dahun Kim , In So Kweon
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