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پاورپوینت فصل 7 مشخصات و هندسه عکس قائم

پاورپوینت فصل 7 مشخصات و هندسه عکس قائم (pptx) 46 اسلاید


دسته بندی : پاورپوینت

نوع فایل : PowerPoint (.pptx) ( قابل ویرایش و آماده پرینت )

تعداد اسلاید: 46 اسلاید

قسمتی از متن PowerPoint (.pptx) :

بنام خدا 1 2 فصل 7 : مشخصات و هندسه عکس قائم 45 Slide 3 Definitions Vertical photograph – photo taken with the optical axis coinciding with the direction of gravity Tilted photograph – photo taken with the optical axis unintentionally tilted from the vertical by a small amount, usually less that 3° Near vertical photo Exposure station – space position of the front nodal point at the instant of exposure Flying height – elevation of exposure station above sea level or datum 4 DEFINITIONS (cont.) x-axis of the photograph – line on photo between opposite fiducials which most nearly parallels the direction of flight y-axis – line on photo normal to x-axis with positive being 90° counter-clockwise from +x 5 Coordinate System Using Corner FIDUCIALS x’, y’ coordinates – arbitrary where 6 Scale Over Flat Terrain Utilizing similar triangles 7 SCALE OVER FLAT TERRAIN (Example) Example: Vertical photo taken over flat terrain with 152.4 mm focal length camera at a height of 1830 m above ground. What is the photo scale? Solution: 8 SCALE OVER VARIABLE TERRAIN 9 SCALE OVER VARIABLE TERRAIN (cont.) By similar triangles, Loa and LAOA: By similar triangles LOAA and Loa Scale is:

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