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We focus on tackling weakly supervised semantic segmentation with scribble-level annotation. The regularized loss has been proven to be an effective solution for this task. However, most existing regularized losses only leverage static…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Bingfeng Zhang , Jimin Xiao , Yao Zhao

Meta-learning frameworks for few-shot learning aims to learn models that can learn new skills or adapt to new environments rapidly with a few training examples. This has led to the generalizability of the developed model towards new classes…

Machine Learning · Computer Science 2023-10-10 Saaketh Medepalli , Naren Doraiswamy

Recent work has observed an intriguing ''Neural Collapse'' phenomenon in well-trained neural networks, where the last-layer representations of training samples with the same label collapse into each other. This appears to suggest that the…

Machine Learning · Computer Science 2023-06-30 Yongyi Yang , Jacob Steinhardt , Wei Hu

As one of the fundamental tasks in computer vision, semantic segmentation plays an important role in real world applications. Although numerous deep learning models have made notable progress on several mainstream datasets with the rapid…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Bin Zhang , Shengjie Zhao , Rongqing Zhang

Class imbalance distribution widely exists in real-world engineering. However, the mainstream optimization algorithms that seek to minimize error will trap the deep learning model in sub-optimums when facing extreme class imbalance. It…

Machine Learning · Computer Science 2023-02-22 Liang Xie , Yibo Yang , Deng Cai , Xiaofei He

Few-shot class-incremental learning (FSCIL) has been a challenging problem as only a few training samples are accessible for each novel class in the new sessions. Finetuning the backbone or adjusting the classifier prototypes trained in the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Yibo Yang , Haobo Yuan , Xiangtai Li , Zhouchen Lin , Philip Torr , Dacheng Tao

The usage of convolutional neural networks (CNNs) for unsupervised image segmentation was investigated in this study. In the proposed approach, label prediction and network parameter learning are alternately iterated to meet the following…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Wonjik Kim , Asako Kanezaki , Masayuki Tanaka

Point cloud semantic segmentation can significantly enhance the perception of an intelligent agent. Nevertheless, the discriminative capability of the segmentation network is influenced by the quantity of samples available for different…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Jiawei Han , Kaiqi Liu , Wei Li , Guangzhi Chen

Semantic segmentation and instance level segmentation made substantial progress in recent years due to the emergence of deep neural networks (DNNs). A number of deep architectures with Convolution Neural Networks (CNNs) were proposed that…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Pulak Purkait , Christopher Zach , Ian Reid

Semantic segmentation has been a hot topic across diverse research fields. Along with the success of deep convolutional neural networks, semantic segmentation has made great achievements and improvements, in terms of both urban scene…

Computer Vision and Pattern Recognition · Computer Science 2019-06-28 Xianwei Zheng , Linxi Huan , Hanjiang Xiong , Jianya Gong

When approaching the semantic segmentation of overhead imagery in the decimeter spatial resolution range, successful strategies usually combine powerful methods to learn the visual appearance of the semantic classes (e.g. convolutional…

Computer Vision and Pattern Recognition · Computer Science 2018-08-24 Michele Volpi , Devis Tuia

In this paper, we study the problem of class imbalance in semantic segmentation. We first investigate and identify the main challenges of addressing this issue through pixel rebalance. Then a simple and yet effective region rebalance scheme…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Jiequan Cui , Yuhui Yuan , Zhisheng Zhong , Zhuotao Tian , Han Hu , Stephen Lin , Jiaya Jia

We study deep neural networks for the multi-label classification (MLab) task through the lens of neural collapse (NC). Previous works have been restricted to the multi-class classification setting and discovered a prevalent NC phenomenon…

Machine Learning · Computer Science 2024-06-21 Pengyu Li , Xiao Li , Yutong Wang , Qing Qu

Deep learning architectures exhibit a critical drop of performance due to catastrophic forgetting when they are required to incrementally learn new tasks. Contemporary incremental learning frameworks focus on image classification and object…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Umberto Michieli , Pietro Zanuttigh

Recent years have witnessed a great development of Convolutional Neural Networks in semantic segmentation, where all classes of training images are simultaneously available. In practice, new images are usually made available in a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Hanbin Zhao , Fengyu Yang , Xinghe Fu , Xi Li

Almost all existing deep learning approaches for semantic segmentation tackle this task as a pixel-wise classification problem. Yet humans understand a scene not in terms of pixels, but by decomposing it into perceptual groups and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Jyh-Jing Hwang , Stella X. Yu , Jianbo Shi , Maxwell D. Collins , Tien-Ju Yang , Xiao Zhang , Liang-Chieh Chen

Thesedays, Convolutional Neural Networks are widely used in semantic segmentation. However, since CNN-based segmentation networks produce low-resolution outputs with rich semantic information, it is inevitable that spatial details (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2019-10-03 Youngeun Kim , Seunghyeon Kim , Taekyung Kim , Changick Kim

Semi-supervised learning (SSL), thanks to the significant reduction of data annotation costs, has been an active research topic for large-scale 3D scene understanding. However, the existing SSL-based methods suffer from severe training…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Mengtian Li , Shaohui Lin , Zihan Wang , Yunhang Shen , Baochang Zhang , Lizhuang Ma

Compared with expensive pixel-wise annotations, image-level labels make it possible to learn semantic segmentation in a weakly-supervised manner. Within this pipeline, the class activation map (CAM) is obtained and further processed to…

Computer Vision and Pattern Recognition · Computer Science 2022-01-06 Jiawei Liu , Jing Zhang , Yicong Hong , Nick Barnes

Model bias triggered by long-tailed data has been widely studied. However, measure based on the number of samples cannot explicate three phenomena simultaneously: (1) Given enough data, the classification performance gain is marginal with…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Yanbiao Ma , Licheng Jiao , Fang Liu , Yuxin Li , Shuyuan Yang , Xu Liu