Results 11 to 20 of about 289,431 (286)

A perceptual evaluation of 3D unsharp masking [PDF]

open access: yesSPIE Proceedings, 2009
Much research has gone into developing methods for enhancing the contrast of displayed 3D scenes. In the current study, we investigated the perceptual impact of an algorithm recently proposed by Ritschel et al.1 that provides a general technique for enhancing the perceived contrast in synthesized scenes.
Matthias Ihrke   +5 more
openaire   +4 more sources

Neural correlates of auditory perceptual awareness under informational masking. [PDF]

open access: yesPLoS Biology, 2008
Our ability to detect target sounds in complex acoustic backgrounds is often limited not by the ear's resolution, but by the brain's information-processing capacity. The neural mechanisms and loci of this "informational masking" are unknown.
Alexander Gutschalk   +2 more
doaj   +2 more sources

The Effects of Attention on the Syllable-Induced Prepulse Inhibition of the Startle Reflex and Cortical EEG Responses against Energetic or Informational Masking in Humans

open access: yesBrain Sciences, 2022
Prepulse inhibition (PPI) is the reduction in the acoustic startle reflex (ASR) when the startling stimulus (pulse) is preceded by a weaker, non-starting stimulus.
Xiaoqin Yang   +5 more
doaj   +1 more source

Just Noticeable Difference Model for Images with Color Sensitivity

open access: yesSensors, 2023
The just noticeable difference (JND) model reflects the visibility limitations of the human visual system (HVS), which plays an important role in perceptual image/video processing and is commonly applied to perceptual redundancy removal.
Zhao Zhang   +3 more
doaj   +1 more source

Chinese Character Processing in Visual Masking

open access: yesFrontiers in Psychology, 2022
It has not been clarified if attention influences perception of targets in visual masking. Three forms of common masks (random pattern, para-/metacontrast, and four dots) were thus chosen in the present study and presented with character targets in three
Juan Chen   +5 more
doaj   +1 more source

Effects of presentation level on speech-on-speech masking by voice-gender difference and spatial separation between talkers

open access: yesFrontiers in Neuroscience, 2023
Many previous studies have reported that speech segregation performance in multi-talker environments can be enhanced by two major acoustic cues: (1) voice-characteristic differences between talkers; (2) spatial separation between talkers.
Yonghee Oh   +5 more
doaj   +1 more source

Investigating the influence of masker and target properties on the dynamics of perceptual awareness under informational masking.

open access: yesPLoS ONE, 2023
Informational masking has been investigated using the detection of an auditory target embedded in a random multi-tone masker. The build-up of the target percept is influenced by the masker and target properties.
Alexandre Veyrié   +3 more
doaj   +1 more source

PRODUCTION AND PERCEPTUAL ANALYSIS OF SPEECH PRODUCED IN NOISE [PDF]

open access: yes, 2010
When exposed to noise, speakers modify the way they speak, possibly in an effort to maintain intelligible communication. These modifications are collectively referred to as the Lombard effect.
LU, YOUYI
core   +7 more sources

Exploiting entropy masking in perceptual graphic rendering [PDF]

open access: yesSignal Processing: Image Communication, 2015
Abstract Since the human visual system (HVS) is the ultimate appreciator of most photorealistically rendered images, rendering process can be accelerated by exploiting the properties of the HVS. According to the concept of entropy masking, the HVS is not sensitive to visual distortions in unstructured visual signals.
Lu Dong 0001   +5 more
openaire   +2 more sources

Perceptual redundancy model for compression of screen content videos

open access: yesIET Image Processing, 2022
Screen content video (SCV) consists primarily of text areas, computer graphics and other computer‐generated content and possesses unique perceptual characteristics.
Junlin Li, Li Yu, Hongkui Wang
doaj   +1 more source

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