Perceptually inspired afterimage synthesis

Mikamo, Michihiro; Slomp, Marcos; Raytchev, Bisser; Tamaki, Toru; Kaneda, Kazufumi

doi:10.1016/j.cag.2013.02.008

Cited by 10 publications

(5 citation statements)

References 15 publications

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“…A corresponding model for realtime applications is provided by Ritschel and Eisemann [RE12]. It has been refined to model color transitions when the afterimage disappears [MSR*13]. After‐image‐like effects can also be used to increase the perceived brightness of a light [ZC01].…”

Section: Perceptual Modelsmentioning

confidence: 99%

Perception-driven Accelerated Rendering

Weier

Stengel

Roth

et al. 2017

Computer Graphics Forum

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Advances in computer graphics enable us to create digital images of astonishing complexity and realism. However, processing resources are still a limiting factor. Hence, many costly but desirable aspects of realism are often not accounted for, including global illumination, accurate depth of field and motion blur, spectral effects, etc. especially in real-time rendering. At the same time, there is a strong trend towards more pixels per display due to larger displays, higher pixel densities or larger fields of view. Further observable trends in current display technology include more bits per pixel (high dynamic range, wider color gamut/fidelity), increasing refresh rates (better motion depiction), and an increasing number of displayed views per pixel (stereo, multi-view, all the way to holographic or lightfield displays). These developments cause significant unsolved technical challenges due to aspects such as limited compute power and bandwidth. Fortunately, the human visual system has certain limitations, which mean that providing the highest possible visual quality is not always necessary. In this report, we present the key research and models that exploit the limitations of perception to tackle visual quality and workload alike. Moreover, we present the open problems and promising future research targeting the question of how we can minimize the effort to compute and display only the necessary pixels while still offering a user full visual experience.

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Section: Perceptual Modelsmentioning

confidence: 99%

Perception-driven Accelerated Rendering

Weier

Stengel

Roth

et al. 2017

Computer Graphics Forum

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“…If we talk about the rate of disappearance of the afterimage, then different values are known here: from hundreds of milliseconds [7,13 – 15] to tens of seconds or more [5,16, 17]. The relaxation time of the afterimage is known to be 4-8 seconds [17,18]. The authors [12] did not notice the influence of age on the rate of disappearance of the afterimage.…”

Section: Introductionmentioning

confidence: 99%

On the relationship between afterimages and a simple sensorimotor reaction

Kulakov

2024

Preprint

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Afterimage phenomena (afterimages) are currently widely used in a number of human activities. In this paper, the dynamic properties of afterimages are used and the comparison and relationship with the reaction to light stimulation is investigated. It is found that the attenuation constant of afterimages and the decay constant of the variable part of the latent time of a simple sensorimotor reaction are in direct linear dependence. In addition, variable light stimulation, which contributes to the rapid attenuation of the afterimage, also accelerates the decline of the variable part of the latent time of a simple sensorimotor reaction, while the constant part increases. Based on these data, we conclude that these two phenomena, the afterimage and a simple sensorimotor reaction are interrelated in the functioning of the reflex chain of excitation transmission from sensors to the motor cortex.

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“…In human vision, afterimage is an illusionary image appearing after having been exposed to the primary one (Smith et al, 1983;Rinner, Gegenfurtner, 2000;Zaidi et al, 2012;Kingdom et al, 2020). For instance, during driving at night, if we stare into the headlights of cars approaching us in the opposite lane and finally turn our eyes away, the negative afterimage of bright light sources remains perceived (Mikamo et al, 2013). This afterimage fades gradually and totally disappears in a 10-100-s timescale but the duration time and the subjective strength of the afterimage perceived show high personal variance.…”

Section: Introductionmentioning

confidence: 99%

Szemelvények a BGE kutatásaiból (II. kötet)

2023

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show abstract

Perceptually inspired afterimage synthesis

Cited by 10 publications

References 15 publications

Perception-driven Accelerated Rendering

Perception-driven Accelerated Rendering

On the relationship between afterimages and a simple sensorimotor reaction

Szemelvények a BGE kutatásaiból (II. kötet)

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