The global healthcare data annotation tools market size reached USD 204.6 Million in 2024. Looking forward, IMARC Group expects the market to reach USD 1,308.5 Million by 2033, exhibiting a growth rate (CAGR) of 22.9% during 2025-2033. The increasing adoption of artificial intelligence (AI) and machine learning (ML) in healthcare, the rise in generating vast amounts of data, significant advancement in medical imaging technologies, and the increasing demand for telemedicine are some of the major factors propelling the market.

IMARC Group provides an analysis of the key trends in each segment of the global healthcare data annotation tools market report, along with forecasts at the global, regional, and country levels for 2025-2033. Our report has categorized the market based on type, technology, application, and end user.

The open-source data labeling tool market is experiencing robust growth, driven by the increasing demand for high-quality training data in machine learning and artificial intelligence applications. The market's expansion is fueled by several factors: the rising adoption of AI across various sectors (including IT, automotive, healthcare, and finance), the need for cost-effective data annotation solutions, and the inherent flexibility and customization offered by open-source tools. While cloud-based solutions currently dominate the market due to scalability and accessibility, on-premise deployments remain significant, particularly for organizations with stringent data security requirements. The market's growth is further propelled by advancements in automation and semi-supervised learning techniques within data labeling, leading to increased efficiency and reduced annotation costs. Geographic distribution shows a strong concentration in North America and Europe, reflecting the higher adoption of AI technologies in these regions; however, Asia-Pacific is emerging as a rapidly growing market due to increasing investment in AI and the availability of a large workforce for data annotation. Despite the promising outlook, certain challenges restrain market growth. The complexity of implementing and maintaining open-source tools, along with the need for specialized technical expertise, can pose barriers to entry for smaller organizations. Furthermore, the quality control and data governance aspects of open-source annotation require careful consideration. The potential for data bias and the need for robust validation processes necessitate a strategic approach to ensure data accuracy and reliability. Competition is intensifying with both established and emerging players vying for market share, forcing companies to focus on differentiation through innovation and specialized functionalities within their tools. The market is anticipated to maintain a healthy growth trajectory in the coming years, with increasing adoption across diverse sectors and geographical regions. The continued advancements in automation and the growing emphasis on data quality will be key drivers of future market expansion.

The data collection and labeling market is experiencing robust growth, fueled by the escalating demand for high-quality training data in artificial intelligence (AI) and machine learning (ML) applications. The market, estimated at $15 billion in 2025, is projected to achieve a Compound Annual Growth Rate (CAGR) of 25% over the forecast period (2025-2033), reaching approximately $75 billion by 2033. This expansion is primarily driven by the increasing adoption of AI across diverse sectors, including healthcare (medical image analysis, drug discovery), automotive (autonomous driving systems), finance (fraud detection, risk assessment), and retail (personalized recommendations, inventory management). The rising complexity of AI models and the need for more diverse and nuanced datasets are significant contributing factors to this growth. Furthermore, advancements in data annotation tools and techniques, such as active learning and synthetic data generation, are streamlining the data labeling process and making it more cost-effective. However, challenges remain. Data privacy concerns and regulations like GDPR necessitate robust data security measures, adding to the cost and complexity of data collection and labeling. The shortage of skilled data annotators also hinders market growth, necessitating investments in training and upskilling programs. Despite these restraints, the market’s inherent potential, coupled with ongoing technological advancements and increased industry investments, ensures sustained expansion in the coming years. Geographic distribution shows strong concentration in North America and Europe initially, but Asia-Pacific is poised for rapid growth due to increasing AI adoption and the availability of a large workforce. This makes strategic partnerships and global expansion crucial for market players aiming for long-term success.

The Asia Pacific data annotation tools market is projected to exhibit a robust CAGR of 28.05% during the forecast period of 2025-2033. This growth is primarily driven by the surging demand for high-quality annotated data for training and developing artificial intelligence (AI) and machine learning (ML) algorithms. The increasing adoption of AI and ML across various industry verticals, such as healthcare, retail, and financial services, is fueling the need for accurate and reliable data annotation. Key trends influencing the market growth include the rise of self-supervised annotation techniques, advancements in natural language processing (NLP), and the proliferation of cloud-based annotation platforms. Additionally, the growing awareness of the importance of data privacy and security is driving the adoption of annotation tools that comply with industry regulations. The competitive landscape features a mix of established players and emerging startups offering a wide range of annotation tools. The Asia Pacific data annotation tools market is projected to grow from USD 2.4 billion in 2022 to USD 10.5 billion by 2027, at a CAGR of 35.4% during the forecast period. The growth of the market is attributed to the increasing adoption of artificial intelligence (AI) and machine learning (ML) technologies, which require large amounts of annotated data for training and development.

The size and share of the market is categorized based on product (Image Ai-assisted Annotation Tools, Text Ai-assisted Annotation Tools, Video Ai-assisted Annotation Tools) and Application (Machine Learning, Computer Vision, Artificial Intelligence, Others) and geographical regions (North America, Europe, Asia-Pacific, South America, and Middle-East and Africa).

The European Data Annotation Tools market is anticipated to reach a value of XX million by 2033, progressing at a CAGR of 27.8% between 2025-2033. The increasing demand for data annotation in various industries, such as IT, automotive, government, healthcare, financial services, and retail, is driving market expansion. Additionally, the growing adoption of artificial intelligence (AI) and machine learning (ML) technologies is boosting market growth. Key market trends include the growing popularity of semi-supervised and automatic annotation techniques, which offer improved efficiency and accuracy. Moreover, the integration of data annotation tools with cloud-based platforms is enhancing accessibility and collaboration among stakeholders. However, factors such as data privacy concerns, the availability of skilled professionals, and the high cost of annotation services may restrain market growth. Nonetheless, continued innovation and technological advancements are expected to create ample opportunities for market expansion in the coming years. Recent developments include: In January 2023, CloudFactory, an AI company based in the UK, introduced Vision AI. It is a rapid annotation tool that combines CloudFactory's workforce with leading AI-assisted annotation technologies to produce high-quality annotated data. This product's TAT is five times quicker than manual annotation. , In November 2022, NTT Data and Medcase, a healthcare artificial intelligence solution provider, legally agreed to collaborate on data discovery and enrichment solutions for medical imaging. The partnership will allow Medcase clients to access NTT Data’s AI services, which enable innovators to use data such as medical imaging, patient studies, and more. .

Video Annotation Services Market Analysis The global video annotation services market size was valued at USD 475.6 million in 2025 and is projected to reach USD 843.2 million by 2033, exhibiting a compound annual growth rate (CAGR) of 7.4% over the forecast period. The increasing demand for video data in various industries such as healthcare, transportation, retail, and entertainment, coupled with the growing adoption of artificial intelligence (AI) and machine learning (ML) technologies, is driving the market growth. Moreover, the emergence of new annotation techniques and the increasing adoption of cloud-based annotation solutions are further contributing to the market expansion. Key market trends include the integration of AI and ML capabilities to enhance annotation accuracy and efficiency, the increasing adoption of remote and hybrid work models leading to the demand for automated video annotation tools, and the focus on ethical and responsible data annotation practices to ensure data privacy and protection. Major companies operating in the market include Acclivis, Ai-workspace, GTS, HabileData, iMerit, Keymakr, LXT, Mindy Support, Sama, Shaip, SunTec, TaskUs, Tasq, and Triyock. North America holds a dominant share in the market, followed by Europe and Asia Pacific.

The AI Data Labeling Solutions market is experiencing robust growth, driven by the increasing demand for high-quality data to train and improve the accuracy of AI and machine learning models. The market size in 2025 is estimated at $2.5 billion, exhibiting a Compound Annual Growth Rate (CAGR) of 25% from 2025 to 2033. This substantial growth is fueled by several key factors. The proliferation of AI applications across diverse sectors like healthcare, automotive, and finance necessitates extensive data labeling. The rise of sophisticated AI algorithms that require larger and more complex datasets is another major driver. Cloud-based solutions are gaining significant traction due to their scalability, cost-effectiveness, and ease of access, contributing significantly to market expansion. However, challenges remain, including data privacy concerns, the need for skilled data labelers, and the potential for bias in labeled data. These restraints need to be addressed to ensure the sustainable and responsible growth of the market. The segmentation of the market reveals a diverse landscape. Cloud-based solutions currently dominate, reflecting the industry shift toward flexible and scalable data processing. Application-wise, the IT sector is currently the largest consumer, followed by automotive and healthcare. However, growth in financial services and other sectors indicates the broadening application of AI data labeling solutions. Key players in the market are constantly innovating to improve accuracy, efficiency, and cost-effectiveness, leading to a competitive and rapidly evolving market. The regional distribution shows strong market presence in North America and Europe, driven by early adoption of AI technologies and a well-established technological infrastructure. Asia-Pacific is also demonstrating significant growth potential due to increasing technological advancements and investments in AI research and development. The forecast period of 2025-2033 presents substantial opportunities for market expansion, contingent upon addressing the challenges and leveraging emerging technologies.

The global data annotation and collection services market is experiencing robust growth, driven by the increasing adoption of artificial intelligence (AI) and machine learning (ML) across diverse sectors. The market, estimated at $15 billion in 2025, is projected to exhibit a Compound Annual Growth Rate (CAGR) of 25% from 2025 to 2033, reaching approximately $75 billion by 2033. This significant expansion is fueled by several key factors. The burgeoning autonomous driving industry necessitates vast amounts of annotated data for training self-driving systems, significantly contributing to market growth. Similarly, the healthcare sector's increasing reliance on AI for diagnostics and personalized medicine creates a substantial demand for high-quality annotated medical images and data. Other key application areas like smart security (surveillance, facial recognition), financial risk control (fraud detection), and social media (content moderation) are also driving substantial demand. The market is segmented by annotation type (image, text, voice, video) and application, with image annotation currently holding the largest market share due to its wide applicability across various sectors. However, the growing importance of natural language processing and speech recognition is expected to fuel significant growth in text and voice annotation segments in the coming years. While data privacy concerns and the need for high-quality data annotation present certain restraints, the overall market outlook remains extremely positive. The competitive landscape is characterized by a mix of large established players like Appen, Amazon (through AWS), and Google (through Google Cloud), along with numerous smaller, specialized companies. These companies are constantly innovating to improve the accuracy, efficiency, and scalability of their annotation services. Geographic distribution shows a strong concentration in North America and Europe, reflecting the high adoption of AI in these regions. However, Asia-Pacific, particularly China and India, are witnessing rapid growth, driven by increasing investment in AI and the availability of large datasets. The future of the market will likely be shaped by advancements in automation technologies, the development of more sophisticated annotation tools, and the increasing focus on data quality and ethical considerations. The continued expansion of AI across various industries ensures the long-term viability and growth trajectory of the data annotation and collection services market.

The India Data Annotation Tools Market is positioned for significant growth, currently valued at USD 85 million. This market expansion is largely driven by the rise in artificial intelligence (AI) and machine learning (ML) applications across various industries, such as healthcare, automotive, and retail, where large volumes of labeled data are essential.

As single-cell chromatin accessibility profiling methods advance, scATAC-seq has become ever more important in the study of candidate regulatory genomic regions and their roles underlying developmental, evolutionary, and disease processes. At the same time, cell type annotation is critical in understanding the cellular composition of complex tissues and identifying potential novel cell types. However, most existing methods that can perform automated cell type annotation are designed to transfer labels from an annotated scRNA-seq data set to another scRNA-seq data set, and it is not clear whether these methods are adaptable to annotate scATAC-seq data. Several methods have been recently proposed for label transfer from scRNA-seq data to scATAC-seq data, but there is a lack of benchmarking study on the performance of these methods. Here, we evaluated the performance of five scATAC-seq annotation methods on both their classification accuracy and scalability using publicly available single-cell datasets from mouse and human tissues including brain, lung, kidney, PBMC, and BMMC. Using the BMMC data as basis, we further investigated the performance of these methods across different data sizes, mislabeling rates, sequencing depths and the number of cell types unique to scATAC-seq. Bridge integration, which is the only method that requires additional multimodal data and does not need gene activity calculation, was overall the best method and robust to changes in data size, mislabeling rate and sequencing depth. Conos was the most time and memory efficient method but performed the worst in terms of prediction accuracy. scJoint tended to assign cells to similar cell types and performed relatively poorly for complex datasets with deep annotations but performed better for datasets only with major label annotations. The performance of scGCN and Seurat v3 was moderate, but scGCN was the most time-consuming method and had the most similar performance to random classifiers for cell types unique to scATAC-seq.

Using Machine Learning Techniques in general and Deep Learning techniques in specific needs a certain amount of data often not available in large quantities in some technical domains. The manual inspection of Machine Tool Components, as well as the manual end of line check of products, are labour intensive tasks in industrial applications that often want to be automated by companies. To automate the classification processes and to develop reliable and robust Machine Learning based classification and wear prognostics models there is a need for real-world datasets to train and test models on. The dataset contains 1104 channel 3 images with 394 image-annotations for the surface damage type “pitting”. The annotations made with the annotation tool labelme, are available in JSON format and hence convertible to VOC and COCO format. All images come from two BSD types. The dataset available for download is divided into two folders, data with all images as JPEG, label with all annotations, and saved_model with a baseline model. The authors also provide a python script to divide the data and labels into three different split types – train_test_split, which splits images into the same train and test data-split the authors used for the baseline model, wear_dev_split, which creates all 27 wear developments and type_split, which splits the data into the occurring BSD-types. One of the two mentioned BSD types is represented with 69 images and 55 different image-sizes. All images with this BSD type come either in a clean or soiled condition. The other BSD type is shown on 325 images with two image-sizes. Since all images of this type have been taken with continuous time the degree of soiling is evolving. Also, the dataset contains as above mentioned 27 pitting development sequences with every 69 images. Instruction dataset split The authors of this dataset provide 3 types of different dataset splits. To get the data split you have to run the python script split_dataset.py. Script inputs: split-type (mandatory) output directory (mandatory) Different split-types: train_test_split: splits dataset into train and test data (80%/20%) wear_dev_split: splits dataset into 27 wear-developments type_split: splits dataset into different BSD types Example: C:\Users\Desktop>python split_dataset.py --split_type=train_test_split --output_dir=BSD_split_folder

The global data annotation platform market is experiencing robust growth, driven by the increasing demand for high-quality training data across diverse sectors. The market's expansion is fueled by the proliferation of artificial intelligence (AI) and machine learning (ML) applications in autonomous driving, smart healthcare, and financial risk control. Autonomous vehicles, for instance, require vast amounts of annotated data for object recognition and navigation, significantly boosting demand. Similarly, the healthcare sector leverages data annotation for medical image analysis, leading to advancements in diagnostics and treatment. The market is segmented by application (Autonomous Driving, Smart Healthcare, Smart Security, Financial Risk Control, Social Media, Others) and annotation type (Image, Text, Voice, Video, Others). The prevalent use of cloud-based platforms, coupled with the rising adoption of AI across various industries, presents significant opportunities for market expansion. While the market faces challenges such as high annotation costs and data privacy concerns, the overall growth trajectory remains positive, with a projected compound annual growth rate (CAGR) suggesting substantial market expansion over the forecast period (2025-2033). Competition among established players like Appen, Amazon, and Google, alongside emerging players focusing on specialized annotation needs, is expected to intensify. The regional distribution of the market reflects the concentration of AI and technology development in specific geographical regions. North America and Europe currently hold a significant market share due to their robust technological infrastructure and early adoption of AI technologies. However, the Asia-Pacific region, particularly China and India, is demonstrating rapid growth potential due to the burgeoning AI industry and expanding digital economy. This signifies a shift in market dynamics, as the demand for data annotation services increases globally, leading to a more geographically diverse market landscape. Continuous advancements in annotation techniques, including the use of automated tools and crowdsourcing, are expected to reduce costs and improve efficiency, further fueling market growth.

The coral reef benthic community data described here result from the automated annotation (classification) of benthic images collected during photoquadrat surveys conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD, formerly the Coral Reef Ecosystem Division) as part of NOAA's ongoing National Coral Reef Monitoring Program (NCRMP). SCUBA divers conducted benthic photoquadrat surveys in coral reef habitats according to protocols established by ESD and NCRMP during the ESD-led NCRMP mission to the islands and atolls of the Pacific Remote Island Areas (PRIA) and American Samoa from June 8 to August 11, 2018. Still photographs were collected with a high-resolution digital camera mounted on a pole to document the benthic community composition at predetermined points along transects at stratified random sites surveyed only once as part of Rapid Ecological Assessment (REA) surveys for corals and fish (Ayotte et al. 2015; Swanson et al. 2018) and permanent sites established by ESD and resurveyed every ~3 years for climate change monitoring. Overall, 30 photoquadrat images were collected at each survey site. The benthic habitat images were quantitatively analyzed using the web-based, machine-learning, image annotation tool, CoralNet (https://coralnet.ucsd.edu; Beijbom et al. 2015; Williams et al. 2019). Ten points were randomly overlaid on each image and the machine-learning algorithm "robot" identified the organism or type of substrate beneath, with 300 annotations (points) generated per site. Benthic elements falling under each point were identified to functional group (Tier 1: hard coral, soft coral, sessile invertebrate, macroalgae, crustose coralline algae, and turf algae) for coral, algae, invertebrates, and other taxa following Lozada-Misa et al. (2017). These benthic data can ultimately be used to produce estimates of community composition, relative abundance (percentage of benthic cover), and frequency of occurrence.

1. Overview This dataset is a collection of 6,000+ images of mixed race human face with various expressions & emotions that are ready to use for optimizing the accuracy of computer vision models. All of the contents is sourced from PIXTA's stock library of 100M+ Asian-featured images and videos. PIXTA is the largest platform of visual materials in the Asia Pacific region offering fully-managed services, high quality contents and data, and powerful tools for businesses & organisations to enable their creative and machine learning projects.

2. The data set This dataset contains 6,000+ images of face emotion. Each data set is supported by both AI and human review process to ensure labelling consistency and accuracy. Contact us for more custom datasets.

3. About PIXTA PIXTASTOCK is the largest Asian-featured stock platform providing data, contents, tools and services since 2005. PIXTA experiences 15 years of integrating advanced AI technology in managing, curating, processing over 100M visual materials and serving global leading brands for their creative and data demands. Visit us at https://www.pixta.ai/ or contact via our email contact@pixta.ai."

Data DescriptionThe DIPSER dataset is designed to assess student attention and emotion in in-person classroom settings, consisting of RGB camera data, smartwatch sensor data, and labeled attention and emotion metrics. It includes multiple camera angles per student to capture posture and facial expressions, complemented by smartwatch data for inertial and biometric metrics. Attention and emotion labels are derived from self-reports and expert evaluations. The dataset includes diverse demographic groups, with data collected in real-world classroom environments, facilitating the training of machine learning models for predicting attention and correlating it with emotional states.Data Collection and Generation ProceduresThe dataset was collected in a natural classroom environment at the University of Alicante, Spain. The recording setup consisted of six general cameras positioned to capture the overall classroom context and individual cameras placed at each student’s desk. Additionally, smartwatches were used to collect biometric data, such as heart rate, accelerometer, and gyroscope readings.Experimental SessionsNine distinct educational activities were designed to ensure a comprehensive range of engagement scenarios:News Reading – Students read projected or device-displayed news.Brainstorming Session – Idea generation for problem-solving.Lecture – Passive listening to an instructor-led session.Information Organization – Synthesizing information from different sources.Lecture Test – Assessment of lecture content via mobile devices.Individual Presentations – Students present their projects.Knowledge Test – Conducted using Kahoot.Robotics Experimentation – Hands-on session with robotics.MTINY Activity Design – Development of educational activities with computational thinking.Technical SpecificationsRGB Cameras: Individual cameras recorded at 640×480 pixels, while context cameras captured at 1280×720 pixels.Frame Rate: 9-10 FPS depending on the setup.Smartwatch Sensors: Collected heart rate, accelerometer, gyroscope, rotation vector, and light sensor data at a frequency of 1–100 Hz.Data Organization and FormatsThe dataset follows a structured directory format:/groupX/experimentY/subjectZ.zip Each subject-specific folder contains:images/ (individual facial images)watch_sensors/ (sensor readings in JSON format)labels/ (engagement & emotion annotations)metadata/ (subject demographics & session details)Annotations and LabelingEach data entry includes engagement levels (1-5) and emotional states (9 categories) based on both self-reported labels and evaluations by four independent experts. A custom annotation tool was developed to ensure consistency across evaluations.Missing Data and Data QualitySynchronization: A centralized server ensured time alignment across devices. Brightness changes were used to verify synchronization.Completeness: No major missing data, except for occasional random frame drops due to embedded device performance.Data Consistency: Uniform collection methodology across sessions, ensuring high reliability.Data Processing MethodsTo enhance usability, the dataset includes preprocessed bounding boxes for face, body, and hands, along with gaze estimation and head pose annotations. These were generated using YOLO, MediaPipe, and DeepFace.File Formats and AccessibilityImages: Stored in standard JPEG format.Sensor Data: Provided as structured JSON files.Labels: Available as CSV files with timestamps.The dataset is publicly available under the CC-BY license and can be accessed along with the necessary processing scripts via the DIPSER GitHub repository.Potential Errors and LimitationsDue to camera angles, some student movements may be out of frame in collaborative sessions.Lighting conditions vary slightly across experiments.Sensor latency variations are minimal but exist due to embedded device constraints.CitationIf you find this project helpful for your research, please cite our work using the following bibtex entry:@misc{marquezcarpintero2025dipserdatasetinpersonstudent1, title={DIPSER: A Dataset for In-Person Student1 Engagement Recognition in the Wild}, author={Luis Marquez-Carpintero and Sergio Suescun-Ferrandiz and Carolina Lorenzo Álvarez and Jorge Fernandez-Herrero and Diego Viejo and Rosabel Roig-Vila and Miguel Cazorla}, year={2025}, eprint={2502.20209}, archivePrefix={arXiv}, primaryClass={cs.CV}, url={https://arxiv.org/abs/2502.20209}, } Usage and ReproducibilityResearchers can utilize standard tools like OpenCV, TensorFlow, and PyTorch for analysis. The dataset supports research in machine learning, affective computing, and education analytics, offering a unique resource for engagement and attention studies in real-world classroom environments.

Discrepancy values for A. thaliana NLRome dataset.

1. Overview This dataset is a collection of 5,000+ images of vehicle number plate position that are ready to use for optimizing the accuracy of computer vision models. All of the contents is sourced from PIXTA's stock library of 100M+ Asian-featured images and videos. PIXTA is the largest platform of visual materials in the Asia Pacific region offering fully-managed services, high quality contents and data, and powerful tools for businesses & organisations to enable their creative and machine learning projects.

2. Use case The 5,000+ images of vehicle number plate position could be used for various AI & Computer Vision models: Number Plate Recognition, Parking System, Surveillance Camera,... Each data set is supported by both AI and human review process to ensure labelling consistency and accuracy. Contact us for more custom datasets.

3. Annotation Annotation is available for this dataset on demand, including:

4. Bounding box

5. Classification

6. Segmentation ...

7. About PIXTA PIXTASTOCK is the largest Asian-featured stock platform providing data, contents, tools and services since 2005. PIXTA experiences 15 years of integrating advanced AI technology in managing, curating, processing over 100M visual materials and serving global leading brands for their creative and data demands. Visit us at https://www.pixta.ai/ or contact via our email contact@pixta.ai.

1. Overview This dataset is a collection of high view traffic images in multiple scenes, backgrounds and lighting conditions that are ready to use for optimizing the accuracy of computer vision models. All of the contents is sourced from PIXTA's stock library of 100M+ Asian-featured images and videos. PIXTA is the largest platform of visual materials in the Asia Pacific region offering fully-managed services, high quality contents and data, and powerful tools for businesses & organisations to enable their creative and machine learning projects.

2. Use case This dataset is used for AI solutions training & testing in various cases: Traffic monitoring, Traffic camera system, Vehicle flow estimation,... Each data set is supported by both AI and human review process to ensure labelling consistency and accuracy. Contact us for more custom datasets.

3. About PIXTA PIXTASTOCK is the largest Asian-featured stock platform providing data, contents, tools and services since 2005. PIXTA experiences 15 years of integrating advanced AI technology in managing, curating, processing over 100M visual materials and serving global leading brands for their creative and data demands. Visit us at https://www.pixta.ai/ for more details.