GELE Photogrammetry & Cartography — Stereoscopy, DEM and OrthophotoFlash Cards
Active-recall flashcards for the GELE Photogrammetry & Cartography chapter on Stereoscopy, DEM and Orthophoto. Use spaced repetition — review each card until you can answer without hesitation. Professional Regulation Commission (PRC) — Board of Geodetic Engineering's recent GELE papers show that reviewers who use flashcards daily outperform those who only read study notes.
Exam context
For the Geodetic Engineer Licensure Examination, Professional Regulation Commission (PRC) — Board of Geodetic Engineering tests Photogrammetry & Cartography under a "Core" label, with Stereoscopy, DEM and Orthophoto in the 3rd slot across 6 chapters. GELE candidates must clear the 70% weighted average, no sub-test below 50% cut on the 2026 paper, which draws about a meaningful share of Photogrammetry & Cartography questions. Date to watch: September 2026.
Stereoscopy, DEM and Orthophoto - Flashcards
Cards
Topic
Stereoscopy Fundamentals
Card Id
FC1
Topic
Base-Height Ratio
Card Id
FC2
Topic
Base-Height Ratio Calculation
Card Id
FC3
Topic
Air-Base and Overlap
Card Id
FC4
Topic
Parallax and Height Measurement
Card Id
FC5
Topic
Digital Elevation Model Definition and Production
Card Id
FC6
Topic
DEM vs. DSM Comparison
Card Id
FC7
Topic
Orthophoto Definition and Measurement
Card Id
FC8
Topic
Orthorectification Process
Card Id
FC9
Topic
Orthomosaic Definition and Application
Card Id
FC10
Topic
Orthophoto Accuracy Assessment
Card Id
FC11
Topic
Image Matching for DEM Production
Card Id
FC12
Topic
DEM Method Comparison
Card Id
FC13
Topic
DEM Role in Orthophoto Production
Card Id
FC14
Topic
Orthophoto Accuracy Comparison
Card Id
FC15
Topic
Ground Sample Distance and DEM Resolution
Card Id
FC16
Topic
Ground Control Points and Georeferencing
Card Id
FC17
Topic
Vertical vs. Oblique Photo Orthophotos
Card Id
FC18
Topic
DEM Selection for Flood Mapping Orthophoto
Card Id
FC19
Topic
Orthophoto Quality Control and RA 4374 Compliance
Card Id
FC20
Stored In
chapter_flashcards
Card Count
20
Summary Only
true
Topic Distribution
Base Height Ratio
2
Air Base And Overlap
1
DEM Method Comparison
1
DEM Vs. DSM Comparison
1
Stereoscopy Fundamentals
1
Orthorectification Process
1
Orthophoto Accuracy Assessment
1
Parallax And Height Measurement
1
DEM Role In Orthophoto Production
1
Image Matching For DEM Production
1
Orthophoto Definition And Measurement
1
Orthomosaic Definition And Application
1
Vertical Vs. Oblique Photo Orthophotos
1
Ground Control Points And Georeferencing
1
Ground Sample Distance And DEM Resolution
1
DEM Selection For Flood Mapping Orthophoto
1
Digital Elevation Model Definition And Production
1
Orthophoto Quality Control And RA 4374 Compliance
1
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