GELE Photogrammetry & Cartography — Scale, Relief Displacement and ParallaxSlides
Visual slide deck for Scale, Relief Displacement and Parallax. Perfect for reviewers who prefer seeing concepts laid out with diagrams and bullet points rather than long paragraphs. Built specifically for GELE Photogrammetry & Cartography aspirants preparing for the 2026 cycle.
Exam context
Professional Regulation Commission (PRC) — Board of Geodetic Engineering runs the Geodetic Engineer Licensure Examination on September 2026. Its Photogrammetry & Cartography section sits under a "Core" weighting, and Scale, Relief Displacement and Parallax is the 2nd chapter in the 6-chapter GELE Photogrammetry & Cartography rotation. The GELE passing mark is 70% weighted average, no sub-test below 50%, and the most recent 2026 paper drew about a meaningful share of questions from Photogrammetry & Cartography.
Scale, Relief Displacement and Parallax - Slides
Slides
Chapter Overview: Scale, Relief Displacement and Parallax
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S1
Aerial Photography Basics: Vertical Photos and Principal Point
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S2
What is Relief Displacement?
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S3
Relief Displacement Formula and Components
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S4
Worked Example 1: Calculating Relief Displacement
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S5
Worked Example 2: Finding Object Height from Displacement
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S6
Key Characteristics of Relief Displacement
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S7
Introduction to Stereoscopic Parallax
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S8
Parallax-Height Formula and Components
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S9
Worked Example 3: Height from Parallax Difference
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S10
Measuring Parallax in the Stereoplotter
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S11
Comparison: Relief Displacement vs. Parallax
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S12
Worked Example 4: Choosing Between Methods
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S13
Applications in Philippine Mapping and PRS92/PPCS
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S14
Common Mistakes and Pitfalls in Examinations
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S15
Practice Problems and Solutions
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S16
Summary and Key Takeaways
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S17
Stored In
chapter_slides
Slide Count
17
Summary Only
true
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