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Stephen Munyao

Stephen Munyao

Football Video Annotation Project

KENYA flag
Nairobi, Kenya
$100.00/hrExpertClickworkerCVAT

Key Skills

Software

ClickworkerClickworker
CVATCVAT

Top Subject Matter

Sports Analytics
Autonomous Driving
Urban Mobility

Top Data Types

ImageImage
DocumentDocument
VideoVideo

Top Task Types

Bounding Box
Segmentation
Tracking
Classification

Freelancer Overview

Football Video Annotation Project. Core strengths include CVAT. Education includes Master of Science, University of Nairobi (2024) and Bachelor of Science, University of Oxford (2021). AI-training focus includes data types such as Video and Image and labeling workflows including Bounding Box, Tracking, and Classification.

ExpertEnglish

Labeling Experience

ai training and data annotation

DocumentClassification
Ai training and data notation, classification of dataset my task include clasfication, labeling and basic image annotation

Ai training and data notation, classification of dataset my task include clasfication, labeling and basic image annotation

2016 - Present
CVAT

Image Classification Annotation Tasks

CVATImageClassification
I categorized images into predefined classes to support supervised machine learning applications. The labeling process followed strict criteria to maximize classification accuracy. Regular feedback cycles were incorporated to optimize annotation quality. • Assigned class labels to hundreds of images • Enhanced annotated dataset diversity • Used classification standards and documentation • Assisted in label verification and corrections

I categorized images into predefined classes to support supervised machine learning applications. The labeling process followed strict criteria to maximize classification accuracy. Regular feedback cycles were incorporated to optimize annotation quality. • Assigned class labels to hundreds of images • Enhanced annotated dataset diversity • Used classification standards and documentation • Assisted in label verification and corrections

2019 - Present
CVAT

Pedestrian Tracking Project

CVATVideoTracking
I performed frame-by-frame tracking of pedestrians in urban video footage for people detection research. Each individual was consistently labeled throughout the sequences to ensure data integrity. Systematic validation processes were used to catch and correct errors. • Conducted detailed tracking of pedestrian paths • Focused on crowded urban scenes • Collaborated on annotation best practices • Delivered data for pedestrian detection models

I performed frame-by-frame tracking of pedestrians in urban video footage for people detection research. Each individual was consistently labeled throughout the sequences to ensure data integrity. Systematic validation processes were used to catch and correct errors. • Conducted detailed tracking of pedestrian paths • Focused on crowded urban scenes • Collaborated on annotation best practices • Delivered data for pedestrian detection models

2019 - Present
CVAT

Vehicle Detection Dataset Annotation

CVATImageBounding Box
I labeled vehicles such as cars, buses, and motorcycles in street images for object detection training. Annotations adhered to labeling guidelines to support robust model development. Images were reviewed and refined to meet dataset requirements. • Annotated a diverse range of vehicles • Used bounding boxes for clear object demarcation • Conducted multiple rounds of quality assurance • Supported dataset curation for detection models

I labeled vehicles such as cars, buses, and motorcycles in street images for object detection training. Annotations adhered to labeling guidelines to support robust model development. Images were reviewed and refined to meet dataset requirements. • Annotated a diverse range of vehicles • Used bounding boxes for clear object demarcation • Conducted multiple rounds of quality assurance • Supported dataset curation for detection models

2019 - Present
CVAT

Football Video Annotation Project

CVATVideoBounding Box
I annotated football match videos by labeling players and tracking ball movement across frames. Each object instance was carefully identified and tracked for use in computer vision model training. Quality assurance measures were applied to maintain high dataset standards. • Labeled all visible players per frame • Applied frame-to-frame tracking using bounding boxes • Ensured precise annotation to improve detection accuracy • Reviewed and corrected annotations for consistency

I annotated football match videos by labeling players and tracking ball movement across frames. Each object instance was carefully identified and tracked for use in computer vision model training. Quality assurance measures were applied to maintain high dataset standards. • Labeled all visible players per frame • Applied frame-to-frame tracking using bounding boxes • Ensured precise annotation to improve detection accuracy • Reviewed and corrected annotations for consistency

2019 - Present

Education

U

University of Nairobi

Master of Science, Data Science and Analytics

Master of Science
2022 - 2024
U

University of Oxford

Bachelor of Science, Data Science and Analytics

Bachelor of Science
2018 - 2021

Work History

T

Technova Solutions

Senior Data Analyst

Nairobi
2022 - Present
I

Insight Analytics Group

Data Analyst

Nairobi
2019 - 2021