Results 11 to 20 of about 2,548,447 (289)

Stereoscopy and the Human Visual System. [PDF]

open access: yesSMPTE Motion Imaging J, 2012
Stereoscopic displays have become important for many applications, including operation of remote devices, medical imaging, surgery, scientific visualization, and computer-assisted design. But the most significant and exciting development is the incorporation of stereo technology into entertainment: specifically, cinema, television, and video games.
Banks MS, Read JC, Allison RS, Watt SJ.
europepmc   +5 more sources

No-Reference Quality Assessment of Transmitted Stereoscopic Videos Based on Human Visual System

open access: yesApplied Sciences, 2022
Provisioning the stereoscopic 3D (S3D) video transmission services of admissible quality in a wireless environment is an immense challenge for video service providers.
Md Mehedi Hasan   +4 more
doaj   +1 more source

LOW VISION X-RAY IMAGES CONTRAST ENHANCEMENT USING WAVELET TRANSFORM AND NON-LINEAR MAPPING

open access: yesDiyala Journal of Engineering Sciences, 2009
This paper proposes a new method for enhancing the contrast of medical images based on Wavelet Transform. Wavelet transforms offer an efficient representation of the signal, finely tuned to its intrinsic properties involves simple processing techniques ...
Raghad Zuhair Yousif Al-Macdici
doaj   +1 more source

Orientational selectivity of the human visual system [PDF]

open access: yesThe Journal of Physiology, 1966
1. It is known that an object is less detectable when it is viewed against a background containing structures similar to the object. The effect of changing the orientation between the object and background is investigated.2. Gratings of variable contrast were generated on two oscilloscopes; these were superimposed optically.
F W, Campbell, J J, Kulikowski
openaire   +2 more sources

Digital image contrast assessment based on the Weibull distribution parameters

open access: yesСистемный анализ и прикладная информатика, 2021
The goal of the studies described in the paper is to find a quantitative assessment that maximally correlates with the subjective assessment of the contrast image quality in the absence of reference image.
Y. I. Golub, F. V. Starovoitov
doaj   +1 more source

Full Reference Image Quality Assessment by Considering Intra-Block Structure and Inter-Block Texture

open access: yesIEEE Access, 2020
The purpose of the image quality assessment is to evaluate image quality consistently with human's subjective evaluation. In image quality assessment, many structural features have been used to measure the quality degradation of an image.
Junfeng Yang   +4 more
doaj   +1 more source

A Seamless Image-Stitching Method Based on Human Visual Discrimination and Attention

open access: yesApplied Sciences, 2020
Stitching gaps and misalignments in mosaic images can severely degrade the human visual perception of mosaic effects. Image stitching plays a key role in eliminating these unpleasant defects.
Qingjie Cao   +3 more
doaj   +1 more source

Scene-based imperceptible-visible watermarking for HDR video content [PDF]

open access: yes, 2019
This paper presents the High Dynamic Range - Imperceptible Visible Watermarking for HDR video content (HDR-IVW-V) based on scene detection for robust copyright protection of HDR videos using a visually imperceptible watermarking methodology.
Garcia-Ugalde, F.   +2 more
core   +1 more source

Dual Video Watermarking Algorithm Based on SIFT and HVS in the Contourlet Domain

open access: yesIEEE Access, 2019
We propose dual un-compressed video watermarking algorithms based on human visual system and scale invariant feature transform (SIFT) in the contourlet domain.
Zhi Li, Shu Qin Chen, Xin Yu Cheng
doaj   +1 more source

A Hybrid Method for Multi-Focus Image Fusion Based on Fast Discrete Curvelet Transform

open access: yesIEEE Access, 2017
This paper presents a fast discrete Curvelet transform (FDCT)-based technique for multi-focus image fusion to address two problems: texture selection in FDCT domain and block effect in spatial-based fusion.
Yong Yang   +4 more
doaj   +1 more source

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