Results 11 to 20 of about 49,163 (190)

Perceptual and electrophysiological masking of the auditory brainstem response : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Psychology at Massey University [PDF]

open access: gold, 1987
Effective masking levels of the auditory brainstem response (ABR) to tonepips were established on 10 normal-hearing subjects at 500, 1000, 2000 and 4000 Hz, using white noise.
Houghton, Janene M
core   +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

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

Masking of figure-ground texture and single targets by surround inhibition: a computational spiking model. [PDF]

open access: yesPLoS ONE, 2012
A visual stimulus can be made invisible, i.e. masked, by the presentation of a second stimulus. In the sensory cortex, neural responses to a masked stimulus are suppressed, yet how this suppression comes about is still debated.
Hans Supèr, August Romeo
doaj   +1 more source

JND-Based Perceptual Video Coding for 4:4:4 Screen Content Data in HEVC [PDF]

open access: yes, 2018
The JCT-VC standardized Screen Content Coding (SCC) extension in the HEVC HM RExt + SCM reference codec offers an impressive coding efficiency performance when compared with HM RExt alone; however, it is not significantly perceptually optimized.
Prangnell, Lee, Sanchez, Victor
core   +2 more sources

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