사진측량 Photogrammetry 강원대학교 지구물리학과 이훈열 교수 Ref: Lillesand and Kiefer, Remote Sensing and Image Interpretation, 3rd ed., Chapter 4.

Photogrammetry The science, art, and technology of obtaining reliable measurements, maps, digital elevation models, and other derived products from photographs. Horizontal ground distance and angle Heights from relief displacement Heights from image parallax

Geometry of Vertical Photograph From Loa and LOAA, OAA=(H-hA)xa/f From L’o’a’ and L’OA’A, OA’A=(H-hA)(-xa’)/f. Then, B=OAA+OA’A =(H-hA)(xa-xa’)/f L (Lense) L’ B (Base) f f b xa a’ xa’ Image plane o a b’ o’ Parallax: apparent change of position due to viewing point H pa=xa – xa’ OA OA’ A hA=H-Bf/pa OB OB’ hA B Similary, hB=H-Bf/pb hB hA-hB=Bf(1/pb-1/pa)