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Sid Ali TifouraSA

Sid Ali Tifoura

Computer Vision Research Engineer

On-demand
San Francisco, US
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sid Ali

R&D Engineer in computer vision and PhD student specializing in 3D data, LiDAR, and geospatial artificial intelligence, I help companies transform their complex data into reliable, measurable, and directly actionable methods.

My areas of expertise:

• 3D point cloud and LiDAR processing and analysis;
• ICP registration and multi-temporal data comparison;
• Change, anomaly, and deformation detection;
• DEM/DTM generation and analysis;
• LiDAR, image, and geospatial data fusion;
• Development and evaluation of computer vision and machine learning algorithms;
• Prototype design, Python pipelines, and visualization tools;
• Methodological audit, experimental validation, and technical documentation.

I can assist with a specific need, a technical audit, a proof of concept, the improvement of an existing algorithm, or the development of a complete processing chain.

Key Technologies: Python, Open3D, NumPy, Pandas, scikit-learn, PyTorch, CloudCompare, Git, and Dash.

My approach combines scientific rigor and operational efficiency: clearly defined objectives, quantified results, reproducible code, and transparent communication. I am particularly interested in projects related to infrastructure, mobility, mapping, inspection, digital twins, and 3D data analysis.
  • English

    Native or bilingual

  • Arabic

    Native or bilingual

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • SNCF Réseau
    PhD Student / R&D Engineer
    TECH
    October 2024 - November 2024 (1 month)
    Saint-Denis, France
    • Design of a framework for multi-temporal 3D change detection with centimeter-level accuracy from high-resolution railway mobile LiDAR data.
    • Development of multi-epoch point cloud registration steps, DEM/DTM generation and comparison, and spatio-temporal analysis of detected signals.
    • Characterization of instabilities, landslides, settlements, embankment deformations, and localized geometric variations along railway corridors.
    • Analysis of InSAR/EGMS products for identifying ground movement hotspots, followed by cross-validation with 3D LiDAR observations at selected sites.
    • Preparation of large-scale processing chains: quality indicators, alert thresholds, visualizations, and technical reports for industrial contexts.
    • Scientific and industrial valorization: SNCF Réseau patent, ICPR and SPIE communications accepted, and IEEE JSTARS manuscript under review.
    Data Science Lidar Radar Python
  • SEGULA Technologies
    Computer Vision Research Engineer - R&D Internship
    February 2024 - July 2024 (5 months)
    Trappes, France
    • Development of computer vision components for HD mapping pipelines in the context of autonomous vehicle perception.
    • Utilization of camera and LiDAR data to construct an HD map geometric layer from multi-sensor data.
    • Detection of road markings using deep neural networks to feed semantic map generation.
    • Contribution to perception pipelines using Python, C++, ROS, and deep learning frameworks.
    C++ Python Data Fusion

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Education

  • PhD in Computer Science
    SNCF Réseau
    2027
    Doctorat en informatique
  • Master 2
    Université Paris-Saclay
    2024
    Master 2

Skill set

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