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Nearly all existing counting methods are designed for a specific object class. Our work, however, aims to create a counting model able to count any class of object. To achieve this goal, we formulate counting as a matching problem, enabling…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Erika Lu , Weidi Xie , Andrew Zisserman

Object counting, whose aim is to estimate the number of objects from a given image, is an important and challenging computation task. Significant efforts have been devoted to addressing this problem and achieved great progress, yet counting…

Computer Vision and Pattern Recognition · Computer Science 2021-05-05 Guangshuai Gao , Qingjie Liu , Yunhong Wang

Visual object counting is a fundamental computer vision task underpinning numerous real-world applications, from cell counting in biomedicine to traffic and wildlife monitoring. However, existing methods struggle to handle the challenge of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Corentin Dumery , Noa Etté , Aoxiang Fan , Ren Li , Jingyi Xu , Hieu Le , Pascal Fua

Zero-shot object counting aims to count instances of arbitrary object categories specified by text descriptions. Existing methods typically rely on vision-language models like CLIP, but often exhibit limited sensitivity to text prompts. We…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Yifei Qian , Zhongliang Guo , Bowen Deng , Chun Tong Lei , Shuai Zhao , Chun Pong Lau , Xiaopeng Hong , Michael P. Pound

We propose a novel framework for interactive class-agnostic object counting, where a human user can interactively provide feedback to improve the accuracy of a counter. Our framework consists of two main components: a user-friendly…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Yifeng Huang , Viresh Ranjan , Minh Hoai

Object finding in clutter is a skill that requires perception of the environment and in many cases physical interaction. In robotics, interactive perception defines a set of algorithms that leverage actions to improve the perception of the…

Robotics · Computer Science 2020-06-02 Tonci Novkovic , Remi Pautrat , Fadri Furrer , Michel Breyer , Roland Siegwart , Juan Nieto

Continual learning aims to refine model parameters for new tasks while retaining knowledge from previous tasks. Recently, prompt-based learning has emerged to leverage pre-trained models to be prompted to learn subsequent tasks without the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Jisu Han , Jaemin Na , Wonjun Hwang

All instance perception tasks aim at finding certain objects specified by some queries such as category names, language expressions, and target annotations, but this complete field has been split into multiple independent subtasks. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Bin Yan , Yi Jiang , Jiannan Wu , Dong Wang , Ping Luo , Zehuan Yuan , Huchuan Lu

Counting is a fundamental operation for various real-world visual tasks, requiring both object recognition and robust counting capabilities. Despite their advanced visual perception, large vision-language models (LVLMs) are known to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Muhammad Fetrat Qharabagh , Mohammadreza Ghofrani , Kimon Fountoulakis

We introduce the new setting of open-vocabulary object 6D pose estimation, in which a textual prompt is used to specify the object of interest. In contrast to existing approaches, in our setting (i) the object of interest is specified…

Computer Vision and Pattern Recognition · Computer Science 2024-06-26 Jaime Corsetti , Davide Boscaini , Changjae Oh , Andrea Cavallaro , Fabio Poiesi

This paper aims to tackle the challenging task of one-shot object counting. Given an image containing novel, previously unseen category objects, the goal of the task is to count all instances in the desired category with only one supporting…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Hui Lin , Xiaopeng Hong , Yabin Wang

How can a robot quickly identify and recognize new objects shown to it during a human demonstration? Existing closed-set object detectors frequently fail at this because the objects are out-of-distribution. While open-set detectors (e.g.,…

Common object counting in a natural scene is a challenging problem in computer vision with numerous real-world applications. Existing image-level supervised common object counting approaches only predict the global object count and rely on…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Hisham Cholakkal , Guolei Sun , Fahad Shahbaz Khan , Ling Shao

In this work, we introduce the problem of cross-modal visuo-tactile object recognition with robotic active exploration. With this term, we mean that the robot observes a set of objects with visual perception and, later on, it is able to…

Robotics · Computer Science 2020-01-22 Pietro Falco , Shuang Lu , Ciro Natale , Salvatore Pirozzi , Dongheui Lee

Object detection is an important task in computer vision, which aims to detect the objects of interest. through the given category list or query images. In this work, we propose a new problem of language-visual-complementary open-set object…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Yupeng Zhang , Ruize Han , Wei Feng , Song Wang , Liang Wan

Recent advances in visual-language models have shown remarkable zero-shot text-image matching ability that is transferable to downstream tasks such as object detection and segmentation. Adapting these models for object counting, however,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Ruixiang Jiang , Lingbo Liu , Changwen Chen

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…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Zhizhong Huang , Mingliang Dai , Yi Zhang , Junping Zhang , Hongming Shan

Recently, object counting has shifted towards class-agnostic counting (CAC), which counts instances of arbitrary object classes never seen during model training. With advancements in robust vision-and-language foundation models, there is a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Luca Ciampi , Nicola Messina , Matteo Pierucci , Giuseppe Amato , Marco Avvenuti , Fabrizio Falchi

Object detection requires substantial labeling effort for learning robust models. Active learning can reduce this effort by intelligently selecting relevant examples to be annotated. However, selecting these examples properly without…

Machine Learning · Computer Science 2022-12-09 Dominik Probst , Hasnain Raza , Erik Rodner

Recent advances in large vision-language models (VLMs) have shown remarkable progress in solving the text-promptable object counting problem. Representative methods typically specify text prompts with object category information in images.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Miaojing Shi , Xiaowen Zhang , Zijie Yue , Yong Luo , Cairong Zhao , Li Li