GI25303 Principles of Photogrammetry – Semester III – Geo – R-2025

Subject Code & Name: GI25303 – Principles of Photogrammetry

Regulation: R-2025

Semester: III (Third Semester)

Branch: B.E. Geoinformatics Engineering (Geo)

Credits / L-T-P: 3 Credits | L-T-P: 3-0-0

Course Objectives

• To enable students to apply analytical and digital methods for accurate terrain modeling, orthophoto generation, and large-scale map production using modern tools.

Full Unit-wise Syllabus

Unit I – Aerial Photography, Flight Planning

Principles, types of aerial photographs, camera systems, overlaps, and coverage; Flight planning, project design, and corrections for drift and crab in aerial surveys..

Activities: Poster presentation on aerial photography

Unit II – Geometry, Stereoscopy

Photo coordinate system – Geometry and scale of vertical photographs – Relief displacement – Parallax and parallax equations – Stereoscopes and stereoscopic vision – Photo interpretation – Measurement of heights and distances – Coordinate transformations – Interior, relative, and absolute orientation – Collinearity and coplanarity conditions.

Activities: Seminar on baseline and photo interpretation

Unit III – Aero triangulation, Terrain Modeling

Neat model, strip and block adjustment – Aerotriangulation methods (independent model, strip adjustment, bundle block adjustment, GPS integration) – Feature collection – DTM/DEM generation – Contour mapping – Orthorectification – Stereo plotting – Mono plotting.

Activities: Group Discussion on terrain modeling techniques

Unit IV – Digital Photogrammetry, Applications

Photogrammetric scanners and digital workstations – Digital stereo viewing systems – Image matching techniques (template and feature-based) – DEM and DSM generation – Satellite photogrammetry – Accuracy standards in large-scale mapping – Map production standards – Engineering Applications.

Activities: Case study on digital photogrammetry applications in engineering projects

Course Outcomes (COs)

• CO1: Explain the principles of aerial photography, flight planning, and geometric characteristics of aerial photographs.
• CO2: Apply stereoscopic principles and orientation methods for photogrammetric measurements and mapping.
• CO3: Perform aerotriangulation, terrain modeling, and orthophoto generation using analytical and digital techniques.
• CO4: Evaluate and implement digital photogrammetric tools and standards for accurate large scale map production.

Assessment Pattern (Quick Note)

• Weightage: Continuous Assessment 40% | End Semester Examinations 60%
• Internal methodology: Quiz - 10%, Case study report – 20%; Seminar report – 20%, Internal Examinations – 50%

Source: Official Anna University – B.E. Geoinformatics Engineering R-2025 Curriculum
Last Updated: September 2026

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