Such data extraction could be useful for solving crimes in which hostages or abuse victims are photographed.
这种抽取的数据信息或许对诸如对人质或虐待受害人等相关犯罪活动且有影像资料证据的情况下解决有用。
英语百科
Data extraction
Data extraction is the act or process of retrieving data out of (usually unstructured or poorly structured) data sources for further data processing or data storage (data migration). The import into the intermediate extracting system is thus usually followed by data transformation and possibly the addition of metadata prior to export to another stage in the data workflow.