000077256 001__ 77256 000077256 005__ 20190709135435.0 000077256 0247_ $$2doi$$a10.1145/3072959.3073668 000077256 0248_ $$2sideral$$a101172 000077256 037__ $$aART-2017-101172 000077256 041__ $$aeng 000077256 100__ $$0(orcid)0000-0002-5169-7042$$aSerrano, Ana$$uUniversidad de Zaragoza 000077256 245__ $$aMovie editing and cognitive event segmentation in virtual reality video 000077256 260__ $$c2017 000077256 5060_ $$aAccess copy available to the general public$$fUnrestricted 000077256 5203_ $$aTraditional cinematography has relied for over a century on a well-established set of editing rules, called continuity editing, to create a sense of situational continuity. Despite massive changes in visual content across cuts, viewers in general experience no trouble perceiving the discontinuous flow of information as a coherent set of events. However, Virtual Reality (VR) movies are intrinsically different from traditional movies in that the viewer controls the camera orientation at all times. As a consequence, common editing techniques that rely on camera orientations, zooms, etc., cannot be used. In this paper we investigate key relevant questions to understand how well traditional movie editing carries over to VR, such as: Does the perception of continuity hold across edit boundaries? Under which conditions? Does viewers' observational behavior change after the cuts? To do so, we rely on recent cognition studies and the event segmentation theory, which states that our brains segment continuous actions into a series of discrete, meaningful events. We first replicate one of these studies to assess whether the predictions of such theory can be applied to VR. We next gather gaze data from viewers watching VR videos containing different edits with varying parameters, and provide the first systematic analysis of viewers' behavior and the perception of continuity in VR. From this analysis we make a series of relevant findings; for instance, our data suggests that predictions from the cognitive event segmentation theory are useful guides for VR editing; that different types of edits are equally well understood in terms of continuity; and that spatial misalignments between regions of interest at the edit boundaries favor a more exploratory behavior even after viewers have fixated on a new region of interest. In addition, we propose a number of metrics to describe viewers' attentional behavior in VR. We believe the insights derived from our work can be useful as guidelines for VR content creation. 000077256 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/IMAGER-TIN2016-79710-P$$9info:eu-repo/grantAgreement/ES/MINECO/TIN2014-61696-EXP$$9info:eu-repo/grantAgreement/ES/MINECO/TIN2016-78753-P 000077256 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/ 000077256 590__ $$a4.384$$b2017 000077256 591__ $$aCOMPUTER SCIENCE, SOFTWARE ENGINEERING$$b3 / 104 = 0.029$$c2017$$dQ1$$eT1 000077256 592__ $$a1.344$$b2017 000077256 593__ $$aComputer Graphics and Computer-Aided Design$$c2017$$dQ1 000077256 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000077256 700__ $$aSitzmann, Vincent 000077256 700__ $$aRuiz-Borau, Jaime 000077256 700__ $$aWetzstein, Gordon 000077256 700__ $$0(orcid)0000-0002-7503-7022$$aGutierrez, Diego$$uUniversidad de Zaragoza 000077256 700__ $$0(orcid)0000-0003-0060-7278$$aMasia, Belen$$uUniversidad de Zaragoza 000077256 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing. 000077256 7102_ $$15007$$2570$$aUniversidad de Zaragoza$$bDpto. Informát.Ingenie.Sistms.$$cÁrea Lenguajes y Sistemas Inf. 000077256 773__ $$g36, 4 (2017), 47 [12 pp.]$$pACM trans. graph.$$tACM TRANSACTIONS ON GRAPHICS$$x0730-0301 000077256 8564_ $$s14746589$$uhttps://zaguan.unizar.es/record/77256/files/texto_completo.pdf$$yPostprint 000077256 8564_ $$s86248$$uhttps://zaguan.unizar.es/record/77256/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000077256 909CO $$ooai:zaguan.unizar.es:77256$$particulos$$pdriver 000077256 951__ $$a2019-07-09-11:33:29 000077256 980__ $$aARTICLE