SPRINGER BRIEFS IN COMPUTER SCIENCESilvio Giancola.Matteo ValentiRemo SalaA Survey on 3D Cameras:Metrological Comparisonof Time-of-Flight,Structured-Light andActive StereoscopyTechnologies②SpringerSpringerBriefs in Computer ScienceSeries editorsStan Zdonik,Brown University,Providence,Rhode Island,USAShashi Shekhar,University of Minnesota,Minneapolis,Minnesota,USAXindong Wu,University of Vermont,Burlington,Vermont,USALakhmi C.Jain,University of South Australia,Adelaide,South Australia,AustraliaDavid Padua,University of Illinois Urbana-Champaign,Urbana,Illinois,USAXuemin (Sherman)Shen,University of Waterloo,Waterloo,Ontario,CanadaBorko Furht,Florida Atlantic University,Boca raton,Florida,USAV.S.Subrahmanian,University of Maryland,College Park,Maryland,USAMartial Hebert,Camegie Mellon University,Pittsburgh,Pennsylvania,USAKatsushi Ikeuchi,University of Tokyo,Tokyo,JapanBruno Siciliano,Universita'di Napoli Federico II,Napoli,ItalySushil Jajodia,George Mason University,Fairfax,Virginia,USANewton Lee,Newton Lee Laboratories,LLC,Tujunga,California,USASpringerBriefs present concise summaries of cutting-edge research and practicalapplications across a wide spectrum of fields.Featuring compact volumes of 50 to125 pages,the series covers a range of content from professional to academic.Typical topics might include:A timely report of state-of-the art analytical techniquesA bridge between new research results,as published in journal articles,and acontextual literature reviewA snapshot of a hot or emerging topicAn in-depth case study or clinical exampleA presentation of core concepts that students must understand in order to makeindependent contributionsBriefs allow authors to present their ideas and readers to absorb them with minimaltime investment.Briefs will be published as part of Springer's eBook collection,with millions of users worldwide.In addition,Briefs will be available for individualprint and electronic purchase.Briefs are characterized by fast,global electronicdissemination,standard publishing contracts,easy-to-use manuscript preparationand formatting guidelines,and expedited production schedules.We aim for pub-lication 8-12 weeks after acceptance.Both solicited and unsolicited manuscriptsare considered for publication in this series.More information about this series at http://www.springer.com/series/10028