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Firstly , an image acquisition system was developed to simultaneously collect weld images , which can provide more information of the real-time weld images from different angles including top front , top back and back seam .
 concept or principle: image; engineering feature: weld; concept or principle: images; engineering feature: weld; concept or principle: images; manufacturing process: seam
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 concept or principle: image; engineering feature: weld; concept or principle: images; engineering feature: weld; concept or principle: images; manufacturing process: seam