Unified Annotation Workspace

• Bounding box, polygon, polyline & keypoint tools
• Multi-label attribute tagging per object
• Frame-by-frame and interpolated video annotation
• Keyboard shortcuts & batch operations
• Zoom, pan & image enhancement controls

Auto-Annotation & Active Learning

• Model-assisted pre-labeling from existing models
• Active learning for intelligent sample selection
• Confidence-based review prioritization
• Iterative refinement loops with human validation
• Transfer learning from pre-trained model zoo

Approval Workflow

• Multi-stage review pipeline (annotate → review → approve)
• Role-based access for annotators, reviewers & admins
• Rejection with inline feedback & re-assignment
• Batch approval for high-confidence annotations
• SLA tracking & annotator performance metrics

Audit Trail & Quality Control

• Complete annotation history & change logs
• Inter-annotator agreement (IAA) scoring
• Automated consistency checks
• Quality dashboards with precision metrics
• Export in COCO, YOLO, Pascal VOC & custom formats