General lens model

From Wiki
Revision as of 09:14, 16 July 2008 by Dedalus (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

General lens model are based on mathematical descriptions of ideal projections. In the radially symmetric models below theta (θ) is the angle between view ray and optical axis.

model name ideal projection r=k_{{1}}\theta +k_{{2}}\theta ^{3} r={\frac  {(l+1)\sin \theta }{l+\cos \theta }}
perspective projection(pinhole camera ) r=f\tan \theta r=\theta +{\frac  {1}{3}}\theta ^{3}
stereographic projection r=2f\tan(\theta /2) r=\theta +{\frac  {1}{12}}\theta ^{3}
equidistance projection r=f
quisolid angle projection r=2f\sin(\theta /2)
Peleng r=f\sin(b\theta )
orthogonal projection r=f\sin(\theta )