Results 261 to 270 of about 49,312 (292)

Wavelet based fuzzy perceptual mask for images

2009 16th IEEE International Conference on Image Processing (ICIP), 2009
One of the characteristics of the Human Visual System (HVS) is to model the sensitivity of the human eye at each coordinate location in the image. This paper explores the use of fuzzy logic for building a non-linear HVS model for perceptual masking in wavelet domain.
Mukesh C. Motwani, Rakhi C. Motwani, Frederick C. Harris   +2 more
openaire   +1 more source

Evaluative conditioning of pattern-masked nonwords requires perceptual awareness.

Journal of Experimental Psychology: Learning, Memory, and Cognition, 2020
Data, analysis scripts, and materials for the ...
Bading, Karoline Corinna, Stahl, Christoph   +1 more
openaire   +2 more sources

Perceptual development and auditory backward recognition masking.

Developmental Psychology, 1991
Three amplitude-discrimination experiments within a backward masking task were carried out to study whether young children have a slower rate of perceptual processing than do adults. Rate of processing was defined within an explicit model of perceptual performance that allows the investigator to determine if rate is responsible for developmental ...
Dominic W. Massaro, Deborah Burke
openaire   +1 more source

Bag Valve Mask Ventilation as a Perceptual-Cognitive Skill

Human Factors: The Journal of the Human Factors and Ergonomics Society, 2017
Objective This study used a high-fidelity infant mannequin to examine the relationship between the quality of bag valve mask ventilation (BVMV) and how providers of varying levels of experience use visual feedback (e.g., electronic vital signs) to guide their performance.
Joel M, Mumma, Francis T, Durso, Michelle, Dyes, Rogelio, Dela Cruz, Valerie P, Fox, Mary, Hoey   +5 more
openaire   +2 more sources

Evidence for perceptual masking of the discriminative morphine stimulus

Psychopharmacology, 1989
Morphine-amphetamine and morphine-naltrexone interactions were examined in three groups of White Carneaux pigeons (n = 3), which were trained in a two-choice drug discrimination procedure under a FR-30 schedule of food reinforcement using 3.2 mg/kg morphine and saline as discriminative stimuli.
D V, Gauvin, A M, Young
openaire   +2 more sources

Perceptual masking of boar taint in Swedish fermented sausages

Meat Science, 2009
Surgical castration of male piglets has traditionally been practiced to avoid development of boar taint in pork meat which can occur if entire male pigs are raised. Boar taint is commonly characterised as exhibiting the odour and flavour of urine and manure.
Nielsen, Sandra Stolzenbach, Lindahl, Gunilla Karin, Lundström, Kerstin, Chen, Gang, Byrne, Derek Victor   +4 more
openaire   +3 more sources

Visually evoked response correlates of perceptual masking and enhancement

Electroencephalography and Clinical Neurophysiology, 1965
Perceptual masking and enhancements of two flashes in evoked cortical potentials recorded by ...
Donchin, Emanuel, Lindsley, Donald B.
openaire   +3 more sources

Spectral Envelope and Perceptual Masking Models

2017
Envelope models describe the gross shape of a signal, such as the magnitude spectrum of a speech signal. An envelope model of the spectrum is thus a source model of the speech signal. Perceptual (frequency) masking models are evaluation models, which describe the magnitude of the perceptually detrimental effect of errors in different parts of the ...
openaire   +1 more source

Perceptual data hiding exploiting between-coefficient contrast masking

SPIE Proceedings, 2008
This paper proposes a novel data hiding scheme in which a payload is embedded into the discrete cosine transform domain. The characteristics of the Human Visual System (HVS) with respect to image fruition have been exploited to adapt the strength of the embedded data and integrated in the design of a digital image watermarking system.
Marano S., Battisti F., Vaccari A., Boato G., Carli M.   +4 more
openaire   +4 more sources

Visual masking model for perceptual color image compression

SPIE Proceedings, 2003
The quality of compressed images can be remarkabley improved if the dictates of the Human Visual System (HVS) requirements are followed. To achieve this goal, our strategy is to exploit human visual masking effect using a subband decomposition. A combination of both intra channel and inter channel masking property is then performed.
Christophe Charrier, Thierry Eude
openaire   +1 more source