| 单词 | quadrifocal | 
| 释义 | > as lemmasquadrifocal   quadrifocal adj.  Brit.  , U.S.   Mathematics and Physics having or involving four foci.ΚΠ 1869    Proc. Royal Soc. 18 208  				Endless varieties of such forms, all closed curves free from discontinuity of form and of motion, may be obtained by using four foci instead of two. They may be called from this property quadrifocal stream-lines. 2005    Computer Vision & Image Understanding 97 284  				The camera geometry can be represented by the fundamental matrix, the trifocal or the quadrifocal tensor, respectively. < as lemmas  | 
	
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