Varying rendering fidelity by exploiting human change blindness

Cater, Kirsten; Chalmers, Alan; Dalton, Colin J

doi:10.1145/604471.604483

Cited by 20 publications

(13 citation statements)

References 17 publications

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“…One approach identi ed central and marginal interest objects, then ran an experiment to determine how well viewers detected detail changes across a visual interrupt [134]. As hypothesized, changes were dif cult to see.…”

Section: Visual Memorymentioning

confidence: 99%

Attention and Visual Memory in Visualization and Computer Graphics

Healey

Enns

2012

IEEE Trans. Visual. Comput. Graphics

290

179

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Abstract-A fundamental goal of visualization is to produce images of data that support visual analysis, exploration, and discovery of novel insights. An important consideration during visualization design is the role of human visual perception. How we "see" details in an image can directly impact a viewer's ef ciency and effectiveness. This article surveys research on attention and visual perception, with a speci c focus on results that have direct relevance to visualization and visual analytics. We discuss theories of low-level visual perception, then show how these ndings form a foundation for more recent work on visual memory and visual attention. We conclude with a brief overview of how knowledge of visual attention and visual memory is being applied in visualization and graphics. We also discuss how challenges in visualization are motivating research in psychophysics.

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Section: Visual Memorymentioning

confidence: 99%

Attention and Visual Memory in Visualization and Computer Graphics

Healey

Enns

2012

IEEE Trans. Visual. Comput. Graphics

290

179

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“…The human visual system (HVS) is an important topic in techniques that attempt to reduce rendering time based on human perception. Past studies have made these algorithms based on the various natural limitations of the HVS, namely, through inattentional and change blindness [Cater et al 2002[Cater et al , 2003; and selective rendering using saliency maps ]. Nasr et al [2006] applied perceptually driven rendering techniques to video games; Anson et al [2006] investigated the perceptual importance to rendering of participating media; and Debattista et al [2006] applied perception in parallel rendering using irradiance caching.…”

Section: Previous Workmentioning

confidence: 99%

“…Perceptually driven scene simplifications in terms of colors for tone mapping (e.g., [Irawan et al 2005;Masia et al 2009]), variance of objects in the scene [McDonnell et al 2009], and polygonal count [Ramanarayanan et al 2008] have been found to reduce the effect on visual degradation in the perceived imagery. A possible avenue is using the characteristics of the human visual system (HVS) to alter specific rendering techniques [Cater et al 2003;Chalmers et al 2006;Dumont et al 2003]. Various methods have been proposed using what is known about the HVS, and techniques that allow reducing rendering times while maintaining high visual quality have been discovered [Debattista et al 2005;Stokes et al 2004].…”

Section: Introductionmentioning

confidence: 99%

Perceptual importance of lighting phenomena in rendering of animated water

Bojrab

Abdul-Massih

Beneš

2013

ACM Trans. Appl. Percept.

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Recent years have seen increasing research in perceptually-driven reductions in the costs of realistically rendered imagery. Water is complex and recognizable, and continues to be in the forefront of research. However, the contribution of individual lighting phenomena to the perceived realism of virtual water has not been addressed. All these phenomena have costs associated with their rendering, but does the visual benefit outweigh these costs? This study investigates the human perception of various illumination components found in water-rich virtual environments. The investigation uses a traditional psychophysical analysis to examine viewer perception of these lighting phenomena as they relate to the rendering cost, and ultimately reveals common trends in perceptual value. Five different scenes with a wide range of water and lighting dynamics were tested for perceptual value by one hundred participants. Our results provide an importance comparison for lighting phenomena in the rendering of water, and cost reductions can be made with little or no effect on the perceived quality of the imagery if viewed in a scenario similar to our testing. ACM Reference Format:Bojrab, M., Abdul-Massih, M., and Benes, B. 2013. Perceptual Importance of lighting phenomena in rendering of animated water.

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“…The graphics community frequently uses optical illusions, perspective tricks, and cinematographic techniques to force the user to see something that is not there or to ignore something that is. For example, a purposefully blurred image creates the illusion of movement, and only changing a scene when a user's vision is disrupted can make for smoother rendering (i.e., change blindness) [11]. Blindness to change and memory limits may also be used in non-graphic systems, for example, to replace old unused search results with better answers [53].…”

Section: Behavioral Deceptionsmentioning

confidence: 99%

Benevolent deception in human computer interaction

Adar

Tan

Teevan

2013

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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Though it has been asserted that "good design is honest,"[42] deception exists throughout human-computer interaction research and practice. Because of the stigma associated with deception-in many cases rightfully so-the research community has focused its energy on eradicating malicious deception, and ignored instances in which deception is positively employed. In this paper we present the notion of benevolent deception, deception aimed at benefitting the user as well as the developer. We frame our discussion using a criminology-inspired model and ground components in various examples. We assert that this provides us with a set of tools and principles that not only helps us with system and interface design, but that opens new research areas. After all, as Cockton claims in his 2004 paper "ValueCentered HCI" [13], "Traditional disciplines have delivered truth. The goal of HCI is to deliver value." Author

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Varying rendering fidelity by exploiting human change blindness

Cited by 20 publications

References 17 publications

Attention and Visual Memory in Visualization and Computer Graphics

Attention and Visual Memory in Visualization and Computer Graphics

Perceptual importance of lighting phenomena in rendering of animated water

Benevolent deception in human computer interaction

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