مرجع دانلود پاورپوینت های درسی

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نوع فایل : پاور پوینت
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بنام خدا 1 2 فصل 8 : برجسته بيني و پارالاكس 65 Slide 3 برجسته بيني 4 DEPTH PERCEPTION Binocular vision – capable of viewing with both eyes simultaneously
Stereoscopic viewing – perception of depth when viewing through binocular vision
Monocular vision – viewing with only one eye
Monoscopic viewing – judging depth with one eye
5 DEPTH PERCEPTION (cont.) Distances perceived monoscipically by
Relative sizes of objects
Hidden objects
Shadows
Differencing in focusing 6 Structure of human eye 7 HUMAN EYE Pupil – circular opening where light passes
Protected by cornea
Light passes through lens and brought to focus at Central fovea
Iris – diaphragm
Optic nerve sends sense of vision to brain
8 MACULA LUTEAلکه زرد Convergence 9 Perceiving object depth in human eyes 10 11 STEREOSCOPIC DEPTH PERCEPTION When eyes fix on point, optical axes converge on that point, intersection at an angle called parallactic angle (φ)
Nearer object, greater parallactic angle
be – eye base About 2.6” (63-69 mm)
Depth between objects A and B is DB – DA 12 VIEWING PHOTOS STEREOSCOPICALLY As A moves to A’, image marks (a’1 and a’2) on transparent medium move closer together
Parallactic angle increases and object perceived nearer
At A”, marks (a”1 and a”2) move apart
Parallactic angle decreases and object perceived farther away 13 VIEWING PHOTOS STEREOSCOPICALLY (cont.) 2 exposures made at L1 and L2
Building on both photos
B is air base – distance between exposures
H’ is flying height above ground
Top and bottom imaged on left photo at a1 and b1 and on right photo at a2 and b2 14 VIEWING PHOTOS STEREOSCOPICALLY (cont.) Placing photos laid on table so left eye sees left image and right eye the right image
Stereoscopic model (called stereomodel) appears below table top
Brain judges height of building from differences in parallactic angle 15 تطابق و تقارب فاصله تطابق : فاصله شیء تا چشم
تقارب : تلاقی اشعه های دیدگانی
فاصله تقارب : محل تلاقی تا چشم
16 روشهاي برجسته بيني الف ) برجسته بينی با زاويه ديد متقاطع
ب) برجسته بينی با زاويه ديد متقارب
ج) برجسته بينی با زاويه ديد موازی
الف ) برجسته بينی با زاويه ديد متقاطع 17 فاصله تطابق فاصله تقارب 18 فاصله تطابق فاصله تقارب ب ) برجسته بينی با زاويه ديد متقارب 19 فاصله تطابق فاصله تقارب ج ) برجسته بينی با زاويه ديد موازی 20 آشن...