Results 251 to 260 of about 289,431 (286)
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The Effect of Otitis Media With Effusion on Perceptual Masking
Archives of Otolaryngology–Head & Neck Surgery, 2003To determine the effect of otitis media with effusion (OME) on perceptual masking (a phenomenon in which spondee threshold for a 2-talker masker is poorer than for a speech-shaped noise masker).Longitudinal testing over a 1-year period following insertion of tympanostomy tubes, using clinical and normal-hearing control groups.Forty-seven children ...
Joseph W, Hall +5 more
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A perceptual metric for masking
IEEE International Conference on Acoustics Speech and Signal Processing, 1993Analytical tools were developed to predict masking of formant frequencies of steady-state vowels in the presence of a noise masker. Two kinds of masking were studied: within-band masking (where the signal frequency was within the bandwidth of a noise masker) and above-band masking (where the signal frequency was above the upper cutoff frequency of the ...
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Evidence for perceptual masking of the discriminative morphine stimulus
Psychopharmacology, 1989Morphine-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
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Wavelet based fuzzy perceptual mask for images
2009 16th IEEE International Conference on Image Processing (ICIP), 2009One 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 +2 more
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Robust audio watermarking using perceptual masking
Signal Processing, 1998zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mitchell D. Swanson +3 more
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No Masking between Test and Mask Components in Perceptually Different Depth Planes
Perception, 20112-D cues to perceived depth organization have been used to segregate test and mask stimulus components in a discrimination task. Observers made either spatial-frequency or orientation judgments on a rectangular test component by itself or in the presence of constant rectangular masks.
Patrick J, Hibbeler, Lynn A, Olzak
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Robust additive watermarking in the DTCWT domain based on perceptual masking [PDF]
في هذه الورقة، يُقترح نظام قوي للعلامات المائية للصور المضافة يعمل في مجال تحويل الموجات المركبة ثنائية الشجرة (DTCWT). يستفيد النظام من نموذج الإخفاء الإدراكي الجديد الذي يستغل خصائص النظام البصري البشري (HVS) في مرحلة التضمين. كما يستخدم هيكلًا فعالًا للكشف عن العلامات المائية، يسمى اختبار RAO، للتحقق من وجود العلامة المائية المرشحة. يعتمد هذا الهيكل
Fouad Khelifi, Khaled Loukhaoukha
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A new spatial perceptual mask for image watermarking
2008 19th International Conference on Pattern Recognition, 2008This paper develops a new mask in the spatial domain for image watermarking. The mask exploits the properties of human visual system with respect to background luminance, the edge and texture masking, which are expressed by certain image features. On the use of the mask, a new double domain watermarking framework is presented. The watermark is embedded
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An Empirical Study on Perceptually Masking Privacy in Graph Visualizations
2018 IEEE Symposium on Visualization for Cyber Security (VizSec), 2018Researchers such as sociologists create visualizations of multivariate node-link diagrams to present findings about the relationships in communities. Unfortunately, such visualizations can inadvertently expose the ostensibly private identities of the persons that make up the dataset.
Jia-Kai Chou +3 more
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Visually evoked response correlates of perceptual masking and enhancement
Electroencephalography and Clinical Neurophysiology, 1965Perceptual masking and enhancements of two flashes in evoked cortical potentials recorded by ...
Donchin, Emanuel, Lindsley, Donald B.
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