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Janet Mwangi

Janet Mwangi

Data Annotator – Image Labeling

Kenya flagNairobi, Kenya
ExpertCVATSama

Key Skills

Software

CVATCVAT
SamaSama

Top Subject Matter

Computer Vision
LiDAR Object Detection

Top Data Types

ImageImage
3D Sensor

Top Task Types

Bounding BoxBounding Box
CuboidCuboid

Freelancer Overview

Data Annotator – Image Labeling. Core strengths include CVAT and Sama. Education includes Diploma in Sales and Marketing, Railways Training Institute (2019). AI-training focus includes data types such as Image and 3D Sensor and labeling workflows including Bounding Box and Cuboid.

Expert

Labeling Experience

Sama

Data Annotator – LiDAR Labeling

Sama3D SensorCuboid
In my role at Sama, I annotated LiDAR point cloud datasets using 3D bounding boxes for machine learning applications in object detection. I utilized specialized LiDAR annotation platforms to ensure precise cuboid labeling and consistent results across all data. I was involved in thorough quality checks and often helped identify and correct labeling issues. • Created accurate 3D bounding box (cuboid) labels for LiDAR point clouds. • Used proprietary and standard LiDAR annotation platforms. • Ensured strict compliance with annotation guidelines for complex datasets. • Contributed feedback to improve annotation standards and dataset reliability.

In my role at Sama, I annotated LiDAR point cloud datasets using 3D bounding boxes for machine learning applications in object detection. I utilized specialized LiDAR annotation platforms to ensure precise cuboid labeling and consistent results across all data. I was involved in thorough quality checks and often helped identify and correct labeling issues. • Created accurate 3D bounding box (cuboid) labels for LiDAR point clouds. • Used proprietary and standard LiDAR annotation platforms. • Ensured strict compliance with annotation guidelines for complex datasets. • Contributed feedback to improve annotation standards and dataset reliability.

2020 - Present
CVAT

Data Annotator – Image Labeling

CVATImageBounding Box
As a Data Annotator at Sama, I was responsible for performing precise bounding box annotations on large-scale image datasets to train computer vision models. My main tasks involved using CVAT and similar annotation tools while strictly adhering to project guidelines and quality standards. I ensured a high level of accuracy in every labeling assignment, collaborating with team members and project managers to resolve inconsistencies. • Executed bounding box, object detection, and keypoint annotations across varied datasets. • Maintained high accuracy while consistently meeting production targets. • Participated in regular quality assurance and dataset review sessions. • Assisted in identifying annotation errors and improving dataset quality.

As a Data Annotator at Sama, I was responsible for performing precise bounding box annotations on large-scale image datasets to train computer vision models. My main tasks involved using CVAT and similar annotation tools while strictly adhering to project guidelines and quality standards. I ensured a high level of accuracy in every labeling assignment, collaborating with team members and project managers to resolve inconsistencies. • Executed bounding box, object detection, and keypoint annotations across varied datasets. • Maintained high accuracy while consistently meeting production targets. • Participated in regular quality assurance and dataset review sessions. • Assisted in identifying annotation errors and improving dataset quality.

2020 - Present

Education

R

Railways Training Institute

Diploma in Sales and Marketing, Sales and Marketing

Diploma in Sales and Marketing
2019 - 2019

Work History

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