Tailored 2D & 3D Image Annotation Services

Speed up AI production with high-quality training dataset labelled and tagged by data annotation experts.

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2D and 3D Image Annotation Services

In today’s data-driven world, high-quality annotated visual data is the backbone of successful computer vision and artificial intelligence (AI) applications. 2D and 3D Image Annotation Services play a critical role in training machine learning models to accurately interpret, analyze, and act on visual information. From autonomous vehicles and healthcare diagnostics to retail analytics and smart surveillance, precise annotation ensures reliable and scalable AI performance.

2D and 3D Image Annotation Services are fundamental to building robust and reliable AI systems. By transforming raw visual data into structured, machine-readable formats, these services enable machines to “see” and understand the world with greater accuracy. Whether you are developing a simple image recognition model or a complex autonomous system, investing in high-quality annotation is a crucial step toward AI success.

What our 2D image annotation services include?

We are specialized in 2D image annotation and our expertise allows us to accurately label objects, regions, or features within flat images to make them understandable for AI models. Our 2D image annotation services are widely used in applications such as object detection, image classification, facial recognition, and optical character recognition (OCR). At DOI, we focus on accuracy, consistency, and scalability, ensuring datasets meet the quality standards required for high-performing AI models.

Bounding Boxes

Drawing rectangular boxes around objects. This is the "bread and butter" of object detection (e.g., identifying cars, pedestrians, people, vehicles, or products).

Polygonal Segmentation

Tracing the exact vertices of an irregular object. This provides more precision than a bounding box, which is vital for things like identifying a specific leaf in a crop or a tumor in an X-ray.

Semantic Segmentation

Our 2D image annotation services experts assign a class to every single pixel in an image (e.g., labeling every pixel that is "road," "sidewalk," or "sky") to create a detailed and pixel-perfect map.

Keypoint & Landmark Annotation

Marking specific points on an object to track movement or structure, such as facial features for biometric security or joints for human pose estimation. Used for pose estimation and motion tracking as well.

Features of our 3D image annotation services

Our 3D image annotation service goes a step further by adding depth and spatial understanding to visual data. 3D image annotation is essential for technologies that require perception of distance, shape, and movement in three-dimensional space. It allows AI to understand not just what an object is, but where it is in physical space and how it is oriented. This is essential for safety-critical applications like autonomous driving and robotics.

LiDAR Point Cloud Annotation

Our annotators work with millions of data points generated by laser sensors. They group these points into recognizable objects, allowing a self-driving car to "see" in 360 degrees, even in total darkness.

3D Bounding Cuboids

Unlike 2D boxes, cuboids capture length, width, and height. 3D bounding cuboids help an AI calculate the volume and distance of an object (e.g., a truck on a highway).

3D Semantic & Instance Segmentation

Similar to its 2D counterpart but applied to volumetric data, separating ground, buildings, and moving obstacles in a 3D environment. Our experts classify every point or voxel in a 3D dataset.

Sensor Fusion Annotation

To enhance accuracy, our 3D image annotation services professionals combine data from cameras, LiDAR, and radar. This process helps in creating an integrated, single and all-inclusive ground-truth dataset.

Featured Service

Virtual Assistant for Startups & Enterprise Companies

Fast-track your AI production by hiring part-time or full-time virtual assistant for 2D and 3D image annotation processes.
Skilled data annotators, 100% free customer success manager, 65% cost reduction, superfast training with video calling apps, and more.

Why outsource 2D and 3D image annotation services to us?

Outsourcing 2D and 3D Image Annotation Services is a strategic choice for companies building AI and computer vision models. Developing high-quality AI requires massive datasets (often millions of images). We use high-end software that includes AI-assisted labeling (auto-labeling), which can significantly speed up the process while maintaining precision. Here are the key reasons why organizations choose us to outsource rather than building everything in-house:

Infrastructure Savings

You can avoid the cost of purchasing or developing specialized annotation platforms and maintaining high-performance hardware by outsourcing 2D and 3D image annotation services to us.

Reduced Overhead

Outsourcing to DOI eliminates the need for recruiting, training, and providing benefits for a large, often temporary, workforce. You pay only for the work you need, making costs predictable and scalable.

3D Complexity

We have teams specifically trained in LiDAR sensor fusion. Our image annotators understand spatial depth and navigate 360-degree environments for 3D point cloud annotation.

Multi-Layer QA

To provide you optimum quality, we employ a multi-step verification process where senior annotators or automated scripts audit the work of junior labelers. Also, use of standard guidelines ensure consistency.

Rapid Ramp-up

As a leading 2D and 3D image annotation company in India, we have ability to quickly assign 100+ annotators to a project which may can take you months to hire in-house.

Faster Time-to-Market

By assigning the labor-intensive "data cleaning" or "image annotation" phase to DOI, your AI engineers can focus on model architecture and deployment, accelerating your product's release.

At Data Outsourcing India, you gain access to advanced tools without extra investment. Our annotation guidelines and validation rules help in improving data quality and AI model performance. By outsourcing 2D and 3D image annotation services to us, you can reduce costs, scale faster, ensure data quality, and accelerate AI development—while allowing internal teams to focus on innovation rather than manual labeling.

Advantage of Service

Benefits of "human-in-the-loop" (HITL) model

We believe in Human-in-the-Loop (HITL) approach while working on data annotation project. To create high-quality labeled datasets for machine learning and computer vision models, we use human expertise and AI automation both together. Instead of relying only on manual labeling or fully automated tools, HITL ensures humans guide, validate, and improve AI-generated annotations. Here are some of the key benefits of Human-in-the-Loop annotation hybrid approach.

Higher Annotation Accuracy

Faster Annotation with AI Assistance

Continuous Model Improvement

Cost Optimization

Better Handling of Edge Cases

Strong Quality Assurance

Bias Reduction & Ethical AI

Human-in-the-Loop data annotation combines the speed of AI with the intelligence of humans, delivering accurate, scalable, and cost-effective datasets. It is especially critical for high-risk, complex, and real-world AI applications where precision matters. Our 2D and 3D image annotation services experts handle complex edge cases that AI struggles with such as occlusions, low-light or blurry images, overlapping objects, rare or ambiguous scenarios, etc.

Send Project Guidelines

Prepare detailed project instructions and send us. We will schedule a web meeting to understand your expectations and exact needs.

Discuss Terms and Pricing

In web meeting, we will discuss deadlines, business terms, and pricing. After getting your final consent and signing NDA. The team will execute a free trial (if applicable).

Get Started with Project

After getting feedback from you on trial and signing SLA, we will commence execution officially. A dedicated project manager will be in touch with you for reporting project status, prioritising the tasks, discussing queries, and scheduling timely deliveries.

Words from Our Clients

The quality of your work is outstanding and so are your workers in our project. The team is knowledgeable about the process and performing all the steps carefully as per the guidelines.

Michelle Waller

United States

Data Outsourcing India has helped my business by offering reliable, organized and accurate QuickBooks data entry services. They are very knowledgeable and proactive.

Jennifer Garner

United States

I found team very impressive and extremely responsive. We are enjoying working with our offshore employees and their management team at DOI. Friendly, fantastic and flexible!

Evelyn Martinez

Canada

Data Outsourcing India can be blindly trusted when it comes to hire offshore dedicated team. I have been in business with them from last 6 years and quite happy with my decision.

John Bower

Canada

I am impressed with your organization. Instead of sending me too many emails like your competitors, you are arranging a zoom call for discussing my requirements. Awesome!

Christina Myers

United Kingdom

I've had the best experience so far of hiring offshore dedicated team after multiple tries. All team members are genuine personality and have willingness to learn.

Paul Freeman

United States

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Questions & Answers

Explore answers to frequently asked questions.

1. Which industries use image annotation?

The 2D and 3D image annotation services are widely used in industries like autonomous vehicles, ADAS, healthcare, medical imaging, eCommerce, robotics, drones, smart cities & surveillance, AR/VR and gaming, etc.

2. How accurate are your annotations?

As a trusted image annotation company, we follow a well-defined process that ensures accuracy from 95% to 99%+, depending on project complexity. Multi-level human-in-the-loop (HITL) quality checks ensure reliable results.

3. What tools and platforms do you use?

Our experts use professional AI-assisted labeling platforms, LiDAR annotation tools, and custom workflows tailored to project requirements. Usually, the tool selection depends on data type and accuracy needs.

4. In which countries do you provide services?

We have been providing 2D and 3D image annotation outsourcing solutions to global clients. Our customers spread in countries like USA, UAE, UK, Canada, Australia, Brazil, Russia, Spain, Germany, France, New Zealand, etc.

5. How do you ensure data security?

We don't compromise on data security, privacy and confidentiality, our security measures include NDA and IP protection, restricted access controls, encrypted data transfer, compliance with GDPR and other data protection standards.

6. What data formats do you support?

At DOI, our skill, knowledge and experience allow us to provide you support for formats such as COCO, PASCAL VOC, YOLO, KITTI, JSON, XML, etc. and custom formats as per the specific project requirement.

Have any questions? Get in Touch

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