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Suicidal Ideation in University Students: a Rorschach Assessment [PDF]
University students are particularly susceptible to suicidal ideation and behavior due to issues inherent to this vital lives’ moment. The Rorschach test can help to understand these students’ suffering. The objective was to evaluate perception, thinking,
Thaís Cristina Marques dos Reis +2 more
doaj +1 more source
Wavelet subband-specific learning for low-dose computed tomography denoising
Deep neural networks have shown great improvements in low-dose computed tomography (CT) denoising. Early algorithms were primarily optimized to obtain an accurate image with low distortion between the denoised image and reference full-dose image at the ...
Wonjin Kim +4 more
doaj +3 more sources
JPEG2000 encoding with perceptual distortion control [PDF]
In this paper, a new encoding approach is proposed to control the JPEG2000 encoding in order to reach a desired perceptual quality. The new method is based on a vision model that incorporates various masking effects of human visual perception and a perceptual distortion metric that takes spatial and spectral summation of individual quantization errors ...
Zhen Liu +2 more
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Distorted perceptual face maps
Recent research has shown that proprioception relies on distorted representations of body size and shape. By asking participants to localise multiple landmarks in space, perceptual body maps can be constructed. Such maps of the hand and forearm is highly distorted, with large overestimation of limb width compared to length.
Matthew R, Longo, Marie, Holmes
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Content-Based Distortion Control Scheme for High-Quality Wireless Multimedia Services
In recent years, the wireless mobile markets are witnessing an unprecedented growth. High-quality video service will be greatly needed as one of the hottest wireless multimedia services in the future generation wireless networks.
Lee Seung-youn +5 more
doaj +2 more sources
On Perception and Consciousness in HPPD: A Systematic Review
Hallucinogen-persisting perception disorder (HPPD) features as a diagnostic category in the DSM-5, ICD-11, and other major classifications, but our knowledge of the phenomenology of the perceptual symptoms involved and the changes in consciousness during
Pieter J. Vis +8 more
doaj +1 more source
Correction of geometric perceptual distortions in pictures [PDF]
We suggest an approach for correcting several types of perceived geometric distortions in computer-generated and photographic images. The approach is based on a mathematical formalization of desirable properties of pictures. We provide a review of perception of pictures and identify perceptually important geometric properties of images.
Zorin, Denis, Barr, Alan H.
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Web-Distortion/Vetter: Vetter Code & Data Release
Here we release the code of Vetter. We also provide our collected web page snapshots (snapshot.zip) and SKPaint API invocation logs (skpdata.tar.gz) of the Alexa top and bottom 2,500 websites, as well as our user study results (results_of_user_study.zip)
Web-Distortion
core +1 more source
HEVC perceptual intra-frame rate control inspired by video subjective observation experiment
In view of the low perceptual rate-distortion performance of the rate control method used in high efficiency video coding (HEVC), an intra-frame rate control algorithm to effectively improve the perceptual rate-distortion performance of video was ...
Yanchao GONG +5 more
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Evaluation of a Framework for Robust Image Reversible Watermarking
In the literature, robust reversible watermarking schemes (RWSs) allow the extraction of watermarks after the images have suffered attacks; however, the modified images are compromised.
Jose Juan Garcia-Hernandez +3 more
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