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How can I use pixel 4a as a Webcam?

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Open access•Journal Article•DOI Webcam testing: Validation of an innovative open-ended multimedia test Janneke K. Oostrom, Marise Ph. Born, Alec W. Serlie, Henk T. van der Molen - Show less +3 more 01 Jan 2010-European Journal of Work and Organizational Psychology 37 Citations	The webcam test, therefore, seems a promising type of instrument for personnel selection.
Proceedings Article•DOI Gaze correction with a single webcam Dominik Giger, Jean-Charles Bazin, Claudia Kuster, Tiberiu Popa, Markus Gross - Show less +4 more 14 Jul 2014 33 Citations	In contrast, we propose a gaze correction method that needs just a single webcam.
Journal Article•DOI A low-cost Webcam & personal computer opens doors Marcos Faundez-Zanuy, Virginia Espinosa-Duro, Juan Antonio Ortega - Show less +2 more 01 Nov 2005-IEEE Aerospace and Electronic Systems Magazine 18 Citations	In addition, the cost of a webcam can be below 20 USD, which is certainly lower than other biometric acquisition devices.
Journal Article•DOI An ordinary camera in an extraordinary location: Outreach with the Mars Webcam ☆ T. Ormston, M. Denis, D. Scuka, H. Griebel - Show less +3 more 01 Sep 2011-Acta Astronautica 14 Citations	This makes it very similar in almost every way to the average home PC webcam.
Journal Article•DOI Laparoscopic skills training using a webcam trainer Steve Y. Chung, Douglas Landsittel, Chris H. Chon, Christopher S. Ng, Gerhard J. Fuchs - Show less +4 more 01 Jan 2005-The Journal of Urology 71 Citations	Our homemade webcam system is comparable in function to the more elaborate video trainer but superior to the dual mirror trainer.
Open access•Journal Article•DOI Detecting plant seasonality from webcams using Bayesian multiple change point analysis Raimund Henneken, Volker Dose, Christoph Schleip, Annette Menzel - Show less +3 more 15 Jan 2013-Agricultural and Forest Meteorology 33 Citations	These methods work well, but require high quality of the webcam images.
Open access•Proceedings Article•DOI OpenFace: An open source facial behavior analysis toolkit Tadas Baltrusaitis, Peter Robinson, Louis-Philippe Morency - Show less +2 more 07 Mar 2016 1.1K Citations	Furthermore, our tool is capable of real-time performance and is able to run from a simple webcam without any specialist hardware.
Proceedings Article•DOI IR-webcam imaging and vascular pattern analysis towards hand vein authentication A. P. Shrotri, S. C. Rethrekar, M. H. Patil, S. N. Kore - Show less +3 more 19 Apr 2010 7 Citations	Images obtained from low cost IR-webcam can be enhanced with the help of denoising algorithm.
Proceedings Article•DOI CCD characterization for a range of color cameras P.J. Withagen, Frans C. A. Groen, Klamer Schutte - Show less +2 more 16 May 2005 13 Citations	It is shown that for a typical consumer webcam, the general model does not hold.

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