data annotation
In my role as a Data Annotation Specialist for an object identification project, I utilized CVAT (Computer Vision Annotation Tool) to transform raw visual data into high-quality training sets for machine learning models. I was responsible for the precise labeling of diverse objects—such as vehicles, pedestrians, and infrastructure—using 2D bounding boxes and complex polygons to ensure pixel-perfect accuracy. By leveraging CVAT’s advanced features, including interpolation for video tracking and attribute tagging for occlusions, I maintained strict data consistency across thousands of frames. My process involved not only manual annotation but also the use of AI-assisted labeling to increase efficiency, followed by a rigorous multi-stage quality assurance review to deliver "ground truth" data with over 98% precision. This technical workflow was critical in reducing model noise and providing the structured information necessary for the AI to navigate and interpret complex real-world enviro