Object Counting

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Overview

Object counting studies how to identify and quantify instances of a requested kind, including small, crowded, or partly occluded objects. Methods range from density-map regression and point localization to detection-and-tracking pipelines, while newer exemplar- and text-guided models use visual or language prompts to specify what to count. Vision-language models are also tested for counting and spatial reasoning, with benchmarks increasingly checking semantic grounding, distractors, counting granularity, and performance under occlusion or scene changes. A central challenge is making counts both accurate and faithful to the intended objects: models can recognize scenes yet confuse similar categories, merge instances, or fail to translate visual evidence into a number.

Latest papers

CardsList

61 papers7 papers in the last four weeks, down 22% on the four weeks before. 0.0% of all new papers.

  1. DecoyCount: Evaluating Visual-Reasoning Misalignment in Counting

    Oct 26, 2026Qiuyi, Zhang, Zhen Xu +14Visually Grounded ReasoningObject Counting

    Richard · Elorian AI · Mercor

  2. ABACUS: A Benchmark for Image Editing Models to Assess Object Category and Counting Under Scene Conservation

    Oct 20, 2026Aymen Lassoued, Angelique Loesch, Romaric AudigierImage Editing EvaluationImage Editing

    Universit´e Paris-Saclay, CEA, List, F-91120 Palaiseau, France

  3. CFC26: Building Evaluations for Deployment in Sonar-Based Fish Counting

    Oct 15, 2026Madison Van Horn, Suzanne Stathatos, Sevan Brodjian +6Object CountingWildlife Monitoring

    California Institute of Technology · Massachusetts Institute of Technology · California Institute of Technology Volunteer

  4. A unified three-branch deep learning framework for automated detection and counting of wildlife in aerial imagery

    Oct 12, 2026Zeyu Xu, Tiejun Wang, Andrew Skidmore +5Image MatchingWildlife Monitoring

    School of Geospatial Engineering and Science, Sun Yat-Sen University, Zhuhai, China · Faculty of Geo-Information Science and Earth Observation, University of Twente, Enschede, The Netherlands · Boma and Badingilo National Parks, African Parks, Juba, South Sudan +3

  5. UniCounting: Instance-Aware Proposal Consolidation for Image-Query-Free Multi-Category Counting

    Oct 6, 2026Jinshi Liu, Pan Liu, Lei He +2Object CountingData Association

    Shenzhen University · The Hong Kong University of Science and Technology (Guangzhou) · Hunan University of Science and Technology +2

  6. COBICount: Separating Object and Background Responses for Remote Sensing Object Counting Without Training on Target Data

    Sep 30, 2026Junjing Zheng, Zhiyi Zhou, Ningrui Yang +1Domain GeneralizationObject Counting

    School of International Studies, Chongqing University of Posts and Telecommunications, Chongqing 400065, China · Brunel University London, Uxbridge UB8 3PH, U.K. · Department of Electronic and Electrical Engineering, College of Engineering, Design and Physical Sciences, Brunel University of London, Uxbridge UB8 3PH, U.K.

  7. Why MLLMs Struggle to Count: Overcoming Individuation and Aggregation Bottlenecks with ConvStack

    Sep 29, 2026Liwei Che, Yihao Quan, Sen Fang +4Object CountingMultimodal Large Language Models

    Department of Computer Science, Rutgers University · Department of Computer Science, University of Washington

  8. VesselBench-800K: A Large-scale Perception Benchmark for Multimodal Vessel Detection, Counting, and Density Estimation

    Sep 29, 2026Danfeng Hong, Chenyu Li, Jocelyn ChanussotObject CountingRemote Sensing

    School of Automation, Southeast University, Nanjing 211189, China · Univ. Grenoble Alpes, INRAE, LESSEM, 38000 Grenoble, France · Univ. Grenoble Alpes, Inria, CNRS, Grenoble INP, LJK, Grenoble 38000, France

  9. Event-Only Wingbeat Counting under Camera Motion: A Controlled MuJoCo Benchmark

    Sep 27, 2026Zhang NengboObject CountingEvent-Based Vision

    School of Aerospace Engineering, Engineering Campus Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia

  10. AgriCountDINO: Parameter-Efficient Exemplar-Guided Counting and Localization in Agriculture

    Sep 24, 2026Shengjie Guo, Xin Li, Borjana Arsova +2Plant PhenotypingObject Counting

    Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy · Institute of Bio- and Geosciences, Plant Sciences, Forschungszentrum Jülich, Jülich, Germany · Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, Milan, Italy +1

  11. MCLC-NET: Multimodal Continual Learning for Leaf Counting

    Sep 16, 2026Ruchi Bhatt, Pratibha Kumari, Shreya Bansal +3Plant PhenotypingObject Counting

    Department of Computer Science & Engineering, Indian Institute of Technology Ropar, Punjab, India · Department of Informatics and Data Science, University of Regensburg, Regensburg, Germany · Department of Computer Science, Khalifa University, UAE

  12. Optical-Flow Wingbeat Counting in MuJoCo: A Comparison of Convolutional, Spiking, and Attention-Based Temporal Models

    Sep 15, 2026Zhang NengboOptical FlowAerial Robotics

    School of Aerospace Engineering, Engineering Campus Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia

  13. DualCount: Structurally Consistent Density and Point Modeling for Zero-Shot Object Counting

    Sep 14, 2026Xuan Cuong NgoObject Counting

    University of Arkansas, USA

  14. CatchMonitor: a machine learning system for automated fish discard quantification

    Sep 14, 2026Geoff French, Michal Mackiewicz, Mark Fisher +2Object CountingVideo Surveillance

  15. PuTR-CouT: Counting-by-Tracking in Camera-Trap Image Sequences

    Sep 4, 2026Fagner Cunha, Juan G. Colonna, Eulanda M. dos SantosObject CountingWildlife Monitoring

    Federal University of Amazonas Manaus, Amazonas, Brazil

  16. Counting Beyond Instances: A Benchmark for Group-Individual Object Counting

    Sep 4, 2026Rui Wang, Junyi Huang, Jiahui Li +4Object Counting

    School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China · Shanghai Artificial Intelligence Laboratory, China · Department of Computer Science, University of Liverpool, Liverpool, United Kingdom

  17. Counting Animals in Camera-Traps Image Sequences without Count Labels: Winning Solution to the iWildCam 2021 Challenge

    Sep 3, 2026Fagner Cunha, Juan G. Colonna, Eulanda M. dos SantosObject CountingWildlife Monitoring

    Federal University of Amazonas · Manaus, Amazonas, Brazil

  18. Object Counting Across Modalities: Taxonomies, Benchmarks, Applications, and Open Challenges

    Aug 24, 2026Joana Konadu Owusu, Shivanand Venkanna SheshappanavarObject CountingMultimodal Model Evaluation

    Geometric Intelligence Research Lab., Dept. of Electrical Engineering and Computer Science, University of Wyoming, Laramie, WY, USA.

  19. Bee Detection and Tracking at Hive Entrance using YOLO11 and ByteTrack

    Aug 24, 2026Thi Thu Thao Nguyen, Johannes ReschkeSmall Object DetectionObject Counting

    IoT Engineering Savonia University of Applied Sciences Finland · Electrical and Information Engineering Ostbayerische Technische Hochschule Regensburg Germany

  20. RECOUNT: Reference-guided Counting with Synthetic Visual Exemplars

    Aug 20, 2026Adriano D'Alessandro, Ali Mahdavi-Amiri, Ghassan HamarnehObject Counting

    Simon Fraser University

  21. AerialYield-B2D: A Greenhouse Blueberry Dataset with Five-Stage Ripeness Masks and Fruit Counts

    Aug 17, 2026Iyyakutti Iyappan Ganapathi, Afeefa Azam, Muhammad Owais +2Agricultural Image AnalysisPlant Phenotyping

    Department of Aerospace Engineering, Khalifa University, Abu Dhabi, United Arab Emirates · Khalifa University Center for Autonomous Robotic Systems (KU-CARS), Khalifa University, Abu Dhabi, United Arab Emirates · Advanced Research and Innovation Center (ARIC), Khalifa University, Abu Dhabi, United Arab Emirates

  22. One-Time Training for All Grains: Open-Set Grain Recognition and Quantitative Analysis

    Aug 10, 2026Qihe Su, Mengyu Sun, Yuxi Ke +4Plant PhenotypingObject Counting

    National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China · College of Engineering, Huazhong Agricultural University, Wuhan, 430070, China · Engineering Research Center of Intelligent Technology for Agriculture, Ministry of Education +1

  23. Data collection from highways: a geometric, class-agnostic approach to embedded vehicle counting

    Aug 7, 2026Lucas Gouveia Omena Lopes, William W. M. Lira, Alexandre M. Lima +1Edge ComputingTraffic Flow Estimation

    Universidade Federal de Alagoas, Maceió, Alagoas, Brazil

  24. Counting the Cost of War Under Satellite Embargo: Zero-Shot Estimation of Impacted Infrastructure

    Jul 31, 2026Saleh Sakib Ahmed, M. Sohel RahmanRemote Sensing Image UnderstandingVision-Language Models

    Department of Computer Science and Engineering, Bangladesh University of Engineering and Technology, Palashi, Dhaka, 1000, Bangladesh.

  25. Spatial-IQ: Deconstructing Spatial Intelligence via Hierarchical Capability Tests

    Jul 24, 2026Patrick Rim, Tom Long, Ekta Prashnani +63D Spatial ReasoningVisual Spatial Reasoning

    1NVIDIA Research · 2Yale University

  26. Spatially-Aware Class-Agnostic Object Counting

    Jul 18, 2026Robert Wijaya, Md. Tanvir Hossain, Amanda Kau +1Object Counting

    Singapore University of Technology and Design, Singapore · The University of Canterbury, Christchurch, New Zealand · The Australian National University, Canberra, Australia

  27. Unsupervised Detection of Entry and Exit Regions from Vehicle Trajectories for Camera-Agnostic Turning Movement Counts

    Jul 12, 2026Parikshit Singh Rathore, Vishwajeet Pattanaik, Punit RathoreTraffic Flow EstimationUnsupervised Clustering

    Robert Bosch Centre for Cyber-Physical Systems (RBCCPS), Indian Institute of Science (IISc), Bengaluru, India · Centre for infrastructure, Sustainable Transportation and Urban Planning (CiSTUP), Indian Institute of Science (IISc), Bengaluru, India

  28. HAJJv2-CrowdCount: Zero-Shot Benchmark for Dense Crowd Counting

    Jul 8, 2026Reem AlYabis, Fares AlTuwaim, AlJawharh AlOtaibi +1Crowd CountingObject Counting

    Riyadh, Saudi Arabia

  29. HoloCount: A Holistic Visual Counting Benchmark for MLLMs

    Jul 7, 2026Jinhong Deng, Limeng Qiao, Guanglu WanMultimodal RobustnessObject Counting

    Meituan

  30. LeukocyteCount: Automatic Identification and Counting for leukocytes using Deep Learning

    Jul 5, 2026Ahmed M. Sayed, Sondos A. Refaat, Abdallah M. Mostafa +2Object CountingWhite Blood Cell Classification

    Faculty of Computers and Artificial Intelligence, Helwan University, Cairo, Egypt · 2Computer Science Department, Faculty of Computers and Artificial Intelligence, Helwan University, Cairo, Egypt. · School of Information Technology and Computer Science +1