B.Sc. in Surveying Engineering Oct. 2017 – Sep. 2021
University of Tehran, Tehran, Iran. Overall: 16.55/20 (German: 2.29 | GPA: 3.72/4)
M.Sc. in Photogrammetry Engineering Oct. 2021 – Jan. 2024
University of Tehran, Tehran, Iran. Overall: 15.43/20 (German: 2.71 | GPA: 3.21/4)
Thesis title: 3D Reconstruction of Cultural Heritage Structure Using Spherical Cameras and Photogrammetry Techniques (2024)
Research Interests
• Photogrammetry • Computer vision • 3D Modeling | 3D Reconstruction
• Remote sensing • Machine learning | Deep learning • Geomatics Engineering
• Data Analysis • Robotics • Image Processing | Visualization
• AI • Cultural heritage Documentation • Semantic Segmentation
Publication
• Rezaei, S., Maier A., Arefi H. Quality Analysis of 3D Point Cloud Using Low-Cost Spherical Camera for Underpass Mapping. Sensors. 2024; 24(11):3534. https://doi.org/10.3390/s24113534
• Rezaei, S.; Arefi, H. Evaluation of Network Design and Solutions of Fisheye Camera Calibration for 3D Reconstruction. Sensors 2025, 25, 1789. https://doi.org/10.3390/s25061789
• Rezaei, S.; Yousefi, A.; Arefi, H. Prompt-Based and Transformer-Based Models Evaluation for Semantic Segmentation of Crowdsourced Urban Imagery Under Projection and Geometric Symmetry Variations. Symmetry 2026, 18, 68. https://doi.org/10.3390/sym18010068
• Rezaei, S.; Arefi, AI-Driven Urban Comfort Indicators Assessment using Close-Range Crowdsource Images. FIG Congress 2026.[ At the review stage ]
Research Experience
• Plate detection using YOLO algorithm and OpenCV toolbox [Python] Nov. 2018
• Modular confidence regions (ellipses) calculation for the adjusted parameters of the geodetic networks [MATLAB] Jan. 2019
• Interior Orientation, Image Refinement, Relative and Absolute Orientation and Bundle Adjustment Optimization Programming of Stereo and Multiple Aerial and Close-Range Images [Python] Mar. 2019
• Modular depth mapping using stereo rectification, vectorising old elevation maps [Python] Jan. 2020
• DSM, DTM and nDTM extraction from 3D point cloud and Generating LOD1 and LOD2 from DSM model [Python] Mar. 2020
• Modular confidence regions (ellipses) calculation for the adjusted parameters of the geodetic networks [MATLAB] Jan. 2021
• Working with observation files between satellite and receiver and how to compute various combinations from the observation file (such as, RINEX file) [MATLAB] Feb. 2021
• Modeling and estimation of errors in GPS observations affected by satellite clock error and errors caused by ionosphere and tropospheric delays [MATLAB] Jun 2021
• Modeling of atmospheric errors affecting the coordinates of the positioned points [MATLAB] Oct 2021
• Implemented Optimization Algorithms for Multiple Projects (Gradient Descent, GA, Ant Colony, PSO, ABC), Image Matching Using Fuzzy Logic Fundamentals [ MATLAB GUI] Dec. 2022
• 3D reconstruction of Hochschule Mainz and Wiesbaden underpass using spherical & DSLR camera Dec. 2023
• Evaluation of camera calibration solutions based on classic methods and using spherical cameras imagery for fisheye and panorama images and modular programming for fisheye undistortion implementation [Python, CloudCompare, Metashape] Sep. 2024
• Semantic segmentation using Mask2Fromer and SegFormer models, implemented with comprehensive workflow of accuracy assessment [Python] Apr. 2025

Work Experience
Photogrammetry Engineer (Nerxon GmbH): Feb. 2022 – Present
 Augment GNSS device with visual positioning system using photogrammetry solutions
 Implement Structure from Motion (SfM) and Bundle Adjustment (BA) algorithms
 Chessboard camera calibration and image processing of module cameras for quality assessment.
 GNSS positioning navigation and controlling data acquisition
Research Intern (Hochschule Mainz): Nov.2023 –. Feb.2024
 Data Acquisition and 3D reconstruction using spherical cameras, DSLR camera and Laser scanner in order to evaluation of spherical camera in accuracy evaluation of 3D point cloud and geometric consistency.
 Integrative super-resolution of Sentinel-2 satellite data for 2D and 3D urban sprawl analysis.
Teaching Experience
• Teaching Assistant, “Photogrammetric Data Acquisition” — Prof. Arefi
Fall 2023
• Teaching Assistant, “Data Collection from Images” — Prof. Arefi
Fall 2023
• Teaching Assistant, “Technical English” — Prof. Arefi
Spring 2024
Selected Course Projects
• Remote Sensing Laboratory Spring 2020
Statistical analysis of processing indices and histograms, noise removal, edge extraction of satellite images, classified map production, atmospheric correction, clustering methods, radiometric corrections and georeferencing in Envi software.
• GIS Laboratory Spring 2020
Digitization of raster data (automatic, semi-automatic and raster data mosaic), gis ready and georeferencing, geoprocessing, geocoding.
Selected Courses
• Advanced Photogrammetry, 17/20 • Geometrical Geodesy, 19.5/20
• Digital Image Processing, 17.25/20 • GIS Laboratory, 20/20
• Digital Surface Modeling, 18/20 • Remote Sensing Laboratory, 18.5/20
Honors & Awards
• Ranked 5th among 40 students, College of Surveying and Geospatial Engineering, University of Tehran
• Rewarded by Iran’s National Elites Foundation, straight into M.Sc. degree. 2022
• Successfully completed the course “Supervised Machine Learning: Regression and Classification - DeepLearning.AI, Stanford University” with official certification: 2024 https://www.coursera.org/account/accomplishments/records/82PESJV5GH9C
• Successfully completed the course “Advanced Learning Algorithms - DeepLearning.AI, Stanford University” with official certification: 2024 https://www.coursera.org/account/accomplishments/records/M7Z9K7R32VOW
• Successfully completed the course “Unsupervised Learning, Recommenders, Reinforcement Learning” DeepLearning.AI, Stanford University” with official certification: 2024
https://www.coursera.org/account/accomplishments/verify/MJDCMQPDGOVK

 Deutsch (Intermediate): B1
 English (Advanced): IELTS academic
overall 6.5 (Speaking:6.5, Writing:6.5, Listening: 6.0, Reading: 6.0)
 Persian (Native)
• Programming MATLAB, Python
• Software AutoCAD, ArcGIS, Civil3D, Unity, MicMac, Agisoft Metashape, Envi, Adobe Premiere, Adobe Photoshop, Adobe Illustrator, Adobe After Effect, MATLAB, Camtasia, Office
• Other Interest Content Creation, Digital Marketing, Cinema and Filmmaking, Motion Graphic