▁consist ently ▁found ▁to ▁have ▁a ▁back ward ▁t ilt ▁of ▁about ▁ 2 ▁degrees ▁relative ▁to ▁its ▁predicted ▁orientation ▁( per pend icular ▁to ▁the ▁fix ation ▁plane ). ▁The ▁theory ▁underlying ▁these ▁devi ations ▁is ▁that ▁the ▁bin oc ular ▁visual ▁system ▁is ▁adapted ▁to ▁the ▁regular ities ▁that ▁can ▁be ▁encountered ▁in ▁natural ▁environments . ▁ ▁Hor opter ▁in ▁computer ▁vision ▁▁ ▁In ▁computer ▁vision , ▁the ▁hor opter ▁is ▁defined ▁as ▁the ▁curve ▁of ▁points ▁in ▁ 3 D ▁space ▁having ▁identical ▁coordinates ▁pro jections ▁with ▁respect ▁to ▁two ▁cam eras ▁with ▁the ▁same ▁intr insic ▁parameters . ▁It ▁is ▁given ▁generally ▁by ▁a ▁tw isted ▁cub ic , ▁i . e ., ▁a ▁curve ▁of ▁the ▁form ▁ ▁x   =   x ( θ ), ▁y   =   y ( θ ), ▁z   =   z ( θ ) ▁where ▁x ( θ ), ▁y ( θ ), ▁z ( θ ) ▁are ▁three ▁independent ▁third - deg ree ▁polynomials . ▁In ▁some ▁deg ener ate ▁configurations , ▁the ▁hor opter ▁reduces ▁to ▁a ▁line ▁plus ▁a ▁circle . ▁ ▁References ▁▁ ▁Category : V ision ▁Category : Cur ves <0x0A> </s> ▁The ▁Mun ich ▁Film ▁Archive , ▁in ▁the ▁Mun ich ▁Stadt museum , ▁is ▁one ▁of ▁six ▁film ▁museum s ▁in ▁Germany . ▁It ▁has ▁no ▁show rooms ▁and ▁is ▁limited ▁to ▁screen ing ▁the ▁films ▁in ▁a ▁single ▁cinema ▁with ▁ 1 6 5 ▁seats , ▁as ▁well ▁as ▁collect ing ,