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Photometric processing serves the double purpose of increasing the amount of recovered surface detail and of enabling the structured-light setup to be robustly self-calibrated .
 used for: Photometric processing, recovered surface detail; used for: Photometric processing, structured-light setup
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  Photometric processing, recovered surface detail; Photometric processing, structured-light setup 
Answer:
 used for: Photometric processing, recovered surface detail; used for: Photometric processing, structured-light setup