( ( Without ( geometry information ) ) ( , ( ( many ( of ( ( these image ) ( based techniques ) ) ) ) ( ( fails ( to ( ( handle ( reflection ( and ( refraction phenomena ) ) ) ) ( from ( non ( Lambertian surfaces ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Without) (NP (NN geometry) (NN information))) (, ,) (NP (NP (JJ many)) (PP (IN of) (NP (NP (DT these) (NN image)) (VP (VBN based) (NP (NNS techniques)))))) (VP (VBZ fails) (S (VP (TO to) (VP (VB handle) (NP (NN reflection) (CC and) (NN refraction) (NNS phenomena)) (PP (IN from) (NP (NNP non) (NNP Lambertian) (NNS surfaces))))))) (. .)))
Without geometry information, many of these image based techniques fails to handle reflection and refraction phenomena from non Lambertian surfaces.
(ROOT (S (NP (DT An) (NN image)) (VP (VBZ is) (NP (NP (DT a) (NN copy)) (PP (IN of) (NP (NP (DT an) (NN image)) (VP (VBN formed) (PP (IN by) (NP (NN reflection) (CC or) (NN refraction)))))))) (. .)))