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Related papers: Exemplar Free Class Agnostic Counting

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Humans can often count unfamiliar objects by observing visual repetition and composition, rather than relying only on object categories. However, many exemplar-free counting models struggle in such situations and may overcount when objects…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Md Tanvir Hossain , Akif Islam , Mohd Ruhul Ameen

Existing works on visual counting primarily focus on one specific category at a time, such as people, animals, and cells. In this paper, we are interested in counting everything, that is to count objects from any category given only a few…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Viresh Ranjan , Udbhav Sharma , Thu Nguyen , Minh Hoai

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,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Pan Ting , Jianfeng Lin , Wenhao Yu , Wenlong Zhang , Xiaoying Chen , Jinlu Zhang , Binqiang Huang

Class-agnostic counting (CAC) aims to count all instances in a query image given few exemplars. A standard pipeline is to extract visual features from exemplars and match them with query images to infer object counts. Two essential…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Min Shi , Hao Lu , Chen Feng , Chengxin Liu , Zhiguo Cao

Class agnostic counting (CAC) is a vision task that can be used to count the total occurrence number of any given reference objects in the query image. The task is usually formulated as a density map estimation problem through similarity…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Tsung-Han Chou , Brian Wang , Wei-Chen Chiu , Jun-Cheng Chen

In this paper, we study the problem of object counting with incomplete annotations. Based on the observation that in many object counting problems the target objects are normally repeated and highly similar to each other, we are…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Jianfeng Wang , Rong Xiao , Yandong Guo , Lei Zhang

This paper tackles the problem of object counting in images. Existing approaches rely on extensive training data with point annotations for each object, making data collection labor-intensive and time-consuming. To overcome this, we propose…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Zenglin Shi , Ying Sun , Mengmi Zhang

Incremental object detection is fundamentally challenged by catastrophic forgetting. A major factor contributing to this issue is background shift, where background categories in sequential tasks may overlap with either previously learned…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Mingyi Guo , Yuyang Liu , Zhiyuan Yan , Zongying Lin , Peixi Peng , Yonghong Tian

Object counting in complex scenes is particularly challenging in the zero-shot (ZS) setting, where instances of unseen categories are counted using only a class name. Existing ZS counting methods that infer exemplars from text often rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Muhammad Ibraheem Siddiqui , Muhammad Haris Khan

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…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Sebastian Dille , Ari Blondal , Sylvain Paris , Yağız Aksoy

Leveraging class semantic descriptions and examples of known objects, zero-shot learning makes it possible to train a recognition model for an object class whose examples are not available. In this paper, we propose a novel zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Soravit Changpinyo , Wei-Lun Chao , Fei Sha

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…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Shengqin Jiang , Qing Wang , Fengna Cheng , Yuankai Qi , Qingshan Liu

Targeted for real world scenarios, online continual learning aims to learn new tasks from sequentially available data under the condition that each data is observed only once by the learner. Though recent works have made remarkable…

Computer Vision and Pattern Recognition · Computer Science 2022-02-14 Jiangpeng He , Fengqing Zhu

In this paper, we consider the problem of generalised visual object counting, with the goal of developing a computational model for counting the number of objects from arbitrary semantic categories, using arbitrary number of "exemplars",…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Chang Liu , Yujie Zhong , Andrew Zisserman , Weidi Xie

Instance segmentation has attracted recent attention in computer vision and existing methods in this domain mostly have an object detection stage. In this paper, we study the intrinsic challenge of the instance segmentation problem, the…

Computer Vision and Pattern Recognition · Computer Science 2016-11-30 Long Jin , Zeyu Chen , Zhuowen Tu

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…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Xiaowen Zhang , Zijie Yue , Yong Luo , Cairong Zhao , Qijun Chen , Miaojing Shi

We present SIMCO, the first agnostic multi-class object counting approach. SIMCO starts by detecting foreground objects through a novel Mask RCNN-based architecture trained beforehand (just once) on a brand-new synthetic 2D shape dataset,…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Marco Godi , Christian Joppi , Andrea Giachetti , Marco Cristani

Zero-Shot Object Counting (ZSOC) aims to count referred instances of arbitrary classes in a query image without human-annotated exemplars. To deal with ZSOC, preceding studies proposed a two-stage pipeline: discovering exemplars and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Seunggu Kang , WonJun Moon , Euiyeon Kim , Jae-Pil Heo

This paper addresses the task of counting human actions of interest using sensor data from wearable devices. We propose a novel exemplar-based framework, allowing users to provide exemplars of the actions they want to count by vocalizing…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Yifeng Huang , Duc Duy Nguyen , Lam Nguyen , Cuong Pham , Minh Hoai

We are interested in counting the number of instances of object classes in natural, everyday images. Previous counting approaches tackle the problem in restricted domains such as counting pedestrians in surveillance videos. Counts can also…

Computer Vision and Pattern Recognition · Computer Science 2017-05-10 Prithvijit Chattopadhyay , Ramakrishna Vedantam , Ramprasaath R. Selvaraju , Dhruv Batra , Devi Parikh