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Polygon Annotation
Our Polygon Annotation services refine object boundaries for enhanced image segmentation and improved object detection.
Defining Polygon Annotation?
It is an exact method of annotating objects by specifying a sequence of x, y coordinates along their edges. This technique ensures pixel-perfect precision while remaining remarkably flexible and adaptable to a diverse
Where is polygon annotation commonly applied?
Polygon annotation is frequently employed in object detection and recognition models, valued for its flexibility and pixel-perfect labeling precision.
- Medical: Outlining internal organ anatomy on CT scans
- Geospatial: Obtaining precise building footprints
- Automotive: Detecting damages on cars and calculating repair costs
- Industrial: Making precise liquid estimations with centrifuge
- Agriculture: Monitoring plant growth
- Retail: Detecting products in a shopper’s basket
Advantages & Disadvantages
Advantages:
- Polygons excel in labeling irregular shapes accurately.
- Pixel-perfect annotation ensures precision, leaving no irrelevant pixels inside the annotated area.
Disadvantages:
- Annotating polygons may take longer than bounding boxes, especially for complex objects.
- Some annotation tools lack features like creating holes in polygons or indicating that two polygons belong to the same object in cases of truncation.
Polygon Annotation Guidelines
- Some tools necessitate users to click along the object’s border to create nodes connected by straight edges, while others permit freehand tracing for increased precision. Optimal tools facilitate easy toggling between these two modalities.
- Assess whether distinguishable overlapping polygons are necessary; if so, employing layers is recommended.
- Round shapes often benefit from additional nodes to achieve a smooth appearance, whereas fewer nodes are preferable for maintaining smoothness in annotations for straight objects.
Trusted Annotation Platforms
How Subul Data Annotation Works For You
Personalized and Fully Managed
Get a dedicated project manager to handle everything from guidelines to quality control, ensuring a seamless experience from start to finish.
Multilayer Quality Control
Experience the assurance of multi-tiered QC processes, including peer review and expert checks, guaranteeing a minimum accuracy of 98%.
Diverse and Scalable Workforce
Access a diverse team of industry experts, assembled within 72 hours, tailored to fit your project's specific needs and scale.
Unbiased and Compliant
Rely on our rigorously trained workforce for unbiased data, perfectly aligned with international privacy and AI standards.
Express Delivery
Benefit from our dynamic workforce, capable of rapidly scaling up to meet tight deadlines and ensure swift project delivery.
Direct Social Impact
Make a difference with every project; our entire workforce comes from refugee and disadvantaged backgrounds, contributing to social goals.
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Types of Our Data Annotation Serveries
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Frequently asked questions
What is Polygon Annotation?
Polygon Annotation outlines objects using polygonal shapes for precise boundaries in image processing.
How does it differ from other methods?
Polygon Annotation provides a detailed and versatile alternative by defining object boundaries with polygonal shapes.
In which industries is Polygon Annotation commonly applied?
Used in healthcare, geospatial analysis, automotive, manufacturing, agriculture, and retail for tasks like object detection.
Are there specific challenges associated with Polygon Annotation?
Challenges include the time-intensive nature and potential limitations in tools for handling polygonal overlap.
What tools are recommended for efficient Polygon Annotation?
Optimal tools allow node-based or freehand tracing, with features for managing overlapping polygons and maintaining smoothness.
How can one achieve accurate Polygon Annotations for round or irregularly shaped objects?
ary the number of nodes; more for round shapes, fewer for maintaining smoothness in straight or irregular objects.