Image and video annotation for computer vision teams

Bounding boxes, polygons, segmentation, keypoints and object tracking, labeled to your written guidelines and checked against a gold set before delivery.

car tree person box · polygon · keypoints

Image annotation types

Pick one or combine several in the same project. We follow your class list, attributes and edge-case rules exactly.

Bounding boxes

Rectangles around each object, with the class and any attributes you need.

Used for: Object detection, counting, retail shelves

Polygons

Point-by-point outlines that follow the real shape of an object.

Used for: Irregular objects, damage, rooftops, produce

Semantic segmentation

Every pixel assigned to a class such as road, sky, person or vehicle.

Used for: Scene understanding, drivable area, land use

Instance segmentation

Pixel masks that also separate one object from the next of the same class.

Used for: Crowded scenes, cell counting, picking robots

Keypoints and skeletons

Landmarks such as body joints, facial points or product corners, in a fixed order.

Used for: Pose estimation, gesture, sports, ergonomics

Polylines and lanes

Lines along lanes, curbs, wires, pipes and other thin structures.

Used for: ADAS, road mapping, infrastructure

Classification and tagging

Image-level labels and attributes, single or multi-label.

Used for: Content moderation, search, quality checks

3D cuboids

Boxes with depth on 2D images, showing an object’s orientation in space.

Used for: Vehicles, warehouse robots, AR

Video annotation

Video adds time. The hard part is keeping labels consistent from frame to frame, so every project gets written rules for occlusion, re-entry and ID changes.

Object tracking

The same ID follows each object across every frame, through occlusion and re-entry.

Keyframes and interpolation

Annotators label keyframes and correct the in-between frames, so long clips stay consistent.

Actions and events

Start and end times for actions such as a fall, a lane change or a pick from a shelf.

Temporal classification

Labels for whole segments of a clip: scene type, weather, activity, or safety status.

Which annotation type do you need?

More precise labels take longer and cost more. Use the cheapest type your model can actually learn from.

TypeShape precisionEffort per objectBest when
ClassificationNoneLowestYou only need to know what is in the image
Bounding boxLowLowYou need where an object is, not its exact outline
KeypointsPoint-levelMediumPose, landmarks or alignment matter
PolygonHighMediumShapes are irregular and boxes include too much background
Semantic / instance segmentationPixel-levelHighestEvery pixel counts, such as drivable area or medical regions

How a project runs

You judge us on real output before anything scales.

  1. Share data and goal

    A sample of images or clips, your class list, and what the model needs to do.

  2. Agree on guidelines

    We write up classes, attributes and edge cases with examples, and you sign them off.

  3. Pilot batch and QA report

    A small batch, reviewed by a second annotator and scored against your gold set.

  4. Refine

    You review the pilot. We update the guidelines and fix what you flag.

  5. Scale

    Full delivery in batches, each one audited with the same QA report.

What the QA report shows

Acceptance criteria are agreed in writing before the pilot, so "done" means the same thing to both teams.

  • Accuracy against your gold setBox and mask overlap (IoU), class accuracy and missed objects.
  • Agreement between annotatorsHow often two annotators label the same item the same way.
  • Error breakdownWhich classes and edge cases cause most corrections.
  • Edge-case logEvery new case we found, with the rule we applied or a question for you.
  • Batch summaryItems delivered, items reviewed, items reworked.

Tools and formats

We can work in your annotation tool, or set up one of ours and deliver in the format your training pipeline reads.

Tools

CVATLabel StudioLabelboxV7SuperAnnotateYour in-house tool

Export formats

COCO JSONYOLO TXTPascal VOC XMLCVAT XMLPNG masksMOT (tracking)Custom JSON or CSV

Data security

Your images are your product. We treat them that way.

  • NDA first. Signed before any data or guidelines are shared.
  • Access on a need-to-know basis. Only the annotators and reviewers on your project can open your data.
  • Your tool, your rules. If you prefer, data never leaves your platform.
  • Used only for your project. Never shared, sold or used to train anything else.
  • Deleted on request. Working copies are removed after delivery, or on the schedule you set.

Where teams use it

The annotation types above, applied to the problem your model is solving.

Autonomous driving and ADAS

Vehicles, pedestrians, lanes, signs and drivable area, with tracking across frames.

Retail and e-commerce

Products on shelves, packaging, attributes and visual search.

Manufacturing and inspection

Defects, scratches, missing parts and assembly checks.

Agriculture

Crops, weeds, fruit counting and plant health from field or drone images.

Robotics and warehouses

Objects to pick, grasp points, 3D cuboids and human pose for safety.

Drones and geospatial

Rooftops, roads, vehicles and land use from aerial and satellite images.

Questions teams ask

If yours isn't here, ask in the form below.

How is image annotation priced?

Per object, per image or per hour, depending on the annotation type and how complex your images are. We quote after seeing a sample, and confirm the rate after the pilot, when both sides know the real effort per item.

How big is a pilot batch?

Usually large enough to cover your main classes and known edge cases. We agree the size, deadline and acceptance criteria with you before starting.

Can you work in our annotation tool?

Yes. We can work inside your platform with accounts you control, or set up CVAT or Label Studio and deliver in your format.

How do you handle edge cases?

They are written into the guidelines with picture examples before labeling starts. New cases found during work are logged, and we ask you for a rule instead of guessing.

How long does a project take?

It depends on volume, annotation type and image complexity. After the pilot we know the real time per item and commit to a delivery schedule in writing.

Do you also do text, audio or LLM data?

Yes. See text and NLP, audio and speech, LLM evaluation and data collection.

Start with a pilot batch

Tell us about your data and the model you're building. We'll reply with questions and a practical pilot plan.

Prefer email? Write to hello@norbeon.com.

Run an annotation team? Register as a vendor.