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李锦阳

李锦阳

Data Annotation Specialist

China flagNanjing, China

Key Skills

Software

LabelImgLabelImg
CVATCVAT

Top Subject Matter

E-commerce – Product Categorization & Customer Support

Top Data Types

TextText
ImageImage

Top Task Types

Bounding BoxBounding Box
PolygonPolygon
ClassificationClassification

Freelancer Overview

Backend Developer. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Bachelor of Science, 南京师范大学中北学院 (2026).

Labeling Experience

Smart Security Image Annotation Project

ImageImageClassificationClassification

Participated in a smart security dataset annotation project for 3 months, focusing on annotating pedestrians, vehicles, and traffic signs in surveillance images. Specific tasks: Used bounding boxes to annotate pedestrians and vehicles, completing ~800 valid boxes per day on average. Applied precise polygon outlines for heavily occluded targets to ensure edge conformity. Performed three‑class classification (“visible / low‑light / no‑light”) on 2,000 night‑time images to support training. Project scale: The team annotated 12,000 images in total; I independently completed ~2,500 images (over 20% of the workload). Produced over 24,000 bounding boxes and 600+ polygons. Quality standards: Strictly followed client annotation guidelines, maintaining bounding box IoU ≥ 0.95. Participated in weekly internal quality checks, with a stable annotation accuracy of over 98.2%. Completed 3 rounds of error review and correction, becoming familiar with common error types and fix methods.

2025 - 2025

Education

南京师范大学中北学院

Bachelor of Science, Computer Science and Technology

Bachelor of Science
2022 - 2026

Work History

B

Boda Network Technology

Backend Developer

Nanjing
2024 - 2024