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Object counting aims to estimate the number of objects in images. The leading counting approaches focus on the single category counting task and achieve impressive performance. Note that there are multiple categories of objects in real…

计算机视觉与模式识别 · 计算机科学 2021-09-01 Wei Xu , Dingkang Liang , Yixiao Zheng , Zhanyu Ma

Class-agnostic object counting aims to count all objects in an image with respect to example boxes or class names, \emph{a.k.a} few-shot and zero-shot counting. In this paper, we propose a generalized framework for both few-shot and…

计算机视觉与模式识别 · 计算机科学 2024-03-28 Zhizhong Huang , Mingliang Dai , Yi Zhang , Junping Zhang , Hongming Shan

The counting task, which plays a fundamental role in numerous applications (e.g., crowd counting, traffic statistics), aims to predict the number of objects with various densities. Existing object counting tasks are designed for a single…

计算机视觉与模式识别 · 计算机科学 2023-07-03 Shengqin Jiang , Qing Wang , Fengna Cheng , Yuankai Qi , Qingshan Liu

In this work, we address the problem of few-shot multi-class object counting with point-level annotations. The proposed technique leverages a class agnostic attention mechanism that sequentially attends to objects in the image and extracts…

计算机视觉与模式识别 · 计算机科学 2020-07-09 Negin Sokhandan , Pegah Kamousi , Alejandro Posada , Eniola Alese , Negar Rostamzadeh

Multi-instance Repetitive Action Counting (MRAC) aims to estimate the number of repetitive actions performed by multiple instances in untrimmed videos, commonly found in human-centric domains like sports and exercise. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Yin Tang , Wei Luo , Jinrui Zhang , Wei Huang , Ruihai Jing , Deyu Zhang

Object counting is a fundamental task in computer vision, with broad applicability in many real-world scenarios. Fully-supervised counting methods require costly point-level annotations per object. Few weakly-supervised methods leverage…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Xiaowen Zhang , Zijie Yue , Yong Luo , Cairong Zhao , Qijun Chen , Miaojing Shi

Zero-shot object counting (ZOC) aims to enumerate objects in images using only the names of object classes during testing, without the need for manual annotations. However, a critical challenge in current ZOC methods lies in their inability…

计算机视觉与模式识别 · 计算机科学 2024-07-10 Huilin Zhu , Jingling Yuan , Zhengwei Yang , Yu Guo , Zheng Wang , Xian Zhong , Shengfeng He

Object counting is a challenging task with broad application prospects in security surveillance, traffic management, and disease diagnosis. Existing object counting methods face a tri-fold challenge: achieving superior performance,…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Pan Ting , Jianfeng Lin , Wenhao Yu , Wenlong Zhang , Xiaoying Chen , Jinlu Zhang , Binqiang Huang

Class-agnostic image segmentation is a crucial component in automating image editing workflows, especially in contexts where object selection traditionally involves interactive tools. Existing methods in the literature often adhere to…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Sebastian Dille , Ari Blondal , Sylvain Paris , Yağız Aksoy

Density map estimation enables accurate object counting in heavily occluded, and densely packed scenes where detection-based counting fails. In multi-class density estimation, class awareness can be introduced by modelling classes…

计算机视觉与模式识别 · 计算机科学 2026-04-16 Villanelle O'Reilly , Jonathan Cox , Georgios Leontidis , Marc Hanheide , Petra Bosilj , James M. Brown

Object detection models perform well at localizing and classifying objects that they are shown during training. However, due to the difficulty and cost associated with creating and annotating detection datasets, trained models detect a…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Ayush Jaiswal , Yue Wu , Pradeep Natarajan , Premkumar Natarajan

The most common paradigm for vision-based multi-object tracking is tracking-by-detection, due to the availability of reliable detectors for several important object categories such as cars and pedestrians. However, future mobile systems…

计算机视觉与模式识别 · 计算机科学 2017-12-22 Aljoša Ošep , Wolfgang Mehner , Paul Voigtlaender , Bastian Leibe

One-Class Classification (OCC) is a special case of multi-class classification, where data observed during training is from a single positive class. The goal of OCC is to learn a representation and/or a classifier that enables recognition…

计算机视觉与模式识别 · 计算机科学 2021-01-11 Pramuditha Perera , Poojan Oza , Vishal M. Patel

Conventional unsupervised anomaly detection (UAD) methods build separate models for each object category. Recent studies have proposed to train a unified model for multiple classes, namely model-unified UAD. However, such methods still…

计算机视觉与模式识别 · 计算机科学 2024-04-17 Jia Guo , Haonan Han , Shuai Lu , Weihang Zhang , Huiqi Li

Object counting methods typically rely on manually annotated datasets. The cost of creating such datasets has restricted the versatility of these networks to count objects from specific classes (such as humans or penguins), and counting…

计算机视觉与模式识别 · 计算机科学 2024-08-05 Adriano D'Alessandro , Ali Mahdavi-Amiri , Ghassan Hamarneh

Meta AI recently released the Segment Anything model (SAM), which has garnered attention due to its impressive performance in class-agnostic segmenting. In this study, we explore the use of SAM for the challenging task of few-shot object…

计算机视觉与模式识别 · 计算机科学 2023-04-24 Zhiheng Ma , Xiaopeng Hong , Qinnan Shangguan

Object counting is pivotal for understanding the composition of scenes. Previously, this task was dominated by class-specific methods, which have gradually evolved into more adaptable class-agnostic strategies. However, these strategies…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Anindya Mondal , Sauradip Nag , Xiatian Zhu , Anjan Dutta

One-class classification (OCC), which models one single positive class and distinguishes it from the negative class, has been a long-standing topic with pivotal application to realms like anomaly detection. As modern society often deals…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Siqi Wang , Jiyuan Liu , Guang Yu , Xinwang Liu , Sihang Zhou , En Zhu , Yuexiang Yang , Jianping Yin

A principle bottleneck in image classification is the large number of training examples needed to train a classifier. Using active learning, we can reduce the number of training examples to teach a CNN classifier by strategically selecting…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Thien Nhan Vo

In this paper we present a novel loss function, called class-agnostic segmentation (CAS) loss. With CAS loss the class descriptors are learned during training of the network. We don't require to define the label of a class a-priori, rather…

计算机视觉与模式识别 · 计算机科学 2021-08-21 Angira Sharma , Naeemullah Khan , Muhammad Mubashar , Ganesh Sundaramoorthi , Philip Torr