Projector camera systems
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{{orphan|date=January 2017}}File:Hp sprout pro cam system.jpg
Projector-camera systems (pro-cam), also called camera-projector systems,{{cite web|last1=Sukthankar|first1=Rahul|title=Smart Projectors: Camera-Projector Systems|url=https://www.cs.cmu.edu/~rahuls/Research/Projector/|website=www.cs.cmu.edu|accessdate=4 January 2017}} augment a local surface with a projected captured image of a remote surface, creating a shared workspace for remote collaboration and communication. Projector-camera systems may also be used for artistic and entertainment purposes.{{cite book|last1=Bimber|first1=Oliver|last2=Yang|first2=Xubo|author1-link=Oliver Bimber|chapter=Projector-Camera Systems in Entertainment and Art|title=Handbook of Multimedia for Digital Entertainment and Arts|date=1 January 2009|pages=471–496|doi=10.1007/978-0-387-89024-1_21|chapter-url=https://www.researchgate.net/publication/226260354|isbn=978-0-387-89023-4}} A pro-cam system consists of a vertical screen for implementing interpersonal space where front-facing videos are displayed, and a horizontal projected screen on the tabletop for implementing shared workspace where downward facing videos are overlapped. An automatically pre-warped image is sent to the projector to ensure that the horizontal screen appears undistorted.
Examples
Pro-cam systems create a shared workspace between users with overlapping video technique which was invented by the researcher [https://www.microsoft.com/en-us/research/people/johntang/ John Tang] in Xerox PARC, 1991.{{Cite book|last1=Tang|first1=John C.|last2=Minneman|first2=Scott L.|title=Proceedings of the SIGCHI conference on Human factors in computing systems Empowering people - CHI '90 |chapter=VideoDraw: A video interface for collaborative drawing |date=1990-01-01|location=New York, NY, USA|publisher=ACM|pages=313–320|doi=10.1145/97243.97302|isbn=978-0201509328|s2cid=16650042 }}
Digital Desk and [http://www.xrce.xerox.com/Our-Research/Publications/1993-108 Double Digital Desk] was the first prototypes of pro-cam systems developed by Xerox Research Center Europe.
[https://www.youtube.com/watch?v=8fupEOc4pYY ShareTable] was the first prototype which is deployed in the field and tested with real users created by [http://lanayarosh.com/ Lana Yarosh] et al. at 2009.{{Cite book|last1=Yarosh|first1=Svetlana|last2=Cuzzort|first2=Stephen|last3=Müller|first3=Hendrik|last4=Abowd|first4=Gregory D.|title=Proceedings of the 8th International Conference on Interaction Design and Children |chapter=Developing a media space for remote synchronous parent-child interaction |date=2009-01-01|series=IDC '09|location=New York, NY, USA|publisher=ACM|pages=97–105|doi=10.1145/1551788.1551806|isbn=9781605583952|s2cid=16598004 }}{{Cite book|last1=Yarosh|first1=Svetlana|last2=Tang|first2=Anthony|last3=Mokashi|first3=Sanika|last4=Abowd|first4=Gregory D.|title=Proceedings of the 2013 conference on Computer supported cooperative work |chapter="almost touching" |date=2013-01-01|series=CSCW '13|location=New York, NY, USA|publisher=ACM|pages=181–192|doi=10.1145/2441776.2441798|isbn=9781450313315|s2cid=18011295 }}
Microsoft Research has introduced the [https://www.microsoft.com/en-us/research/project/illumishare/ IllumiShare] system which was an application of pro-cam systems at 2012.{{Cite book|last1=Junuzovic|first1=Sasa|last2=Inkpen|first2=Kori|author2-link= Kori Inkpen |last3=Blank|first3=Tom|last4=Gupta|first4=Anoop|title=Proceedings of the SIGCHI Conference on Human Factors in Computing Systems |chapter=IllumiShare |date=2012-01-01|series=CHI '12|location=New York, NY, USA|publisher=ACM|pages=1919–1928|doi=10.1145/2207676.2208333|isbn=9781450310154|s2cid=14078287 }}
HP Inc. created a consumer pro-cam product named Sprout and released to market at the end of 2014.{{cite web|last1=Westover|first1=Brian|title=Hands On With the Weird But Intriguing HP Sprout|url=https://www.pcmag.com/article2/0,2817,2471169,00.asp|website=PCMAG|date=29 October 2014 |accessdate=4 January 2017}}
References
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