Results 41 to 50 of about 1,739,418 (322)

A 148dB focal-plane tone-mapping QCIF imager [PDF]

open access: yes, 2012
http://digital.csic.es/handle/10261/84304This paper presents a QCIF HDR imager where visual information is simultaneously captured and adaptively compressed by an in-pixel tone-mapping scheme [1].
Liñán Cembrano, Gustavo   +2 more
core   +1 more source

Low-illumination image enhancement with logarithmic tone mapping

open access: yesOpen Computer Science, 2023
For low-illumination video sequences, some existing enhancement algorithms have some problems, such as image over-enhancement, color distortion, and inadequate detail processing.
Du Changqing, Li Jingjian, Yuan Bin
doaj   +1 more source

Human Visual System Model-Based Optimized Tone Mapping of High Dynamic Range Images

open access: yesIEEE Access, 2021
High dynamic range (HDR) image and video technology can provide significant picture quality improvement over the standard dynamic range (SDR). However, when HDR content is represented on an SDR display, dynamic range compression may result in image ...
Nam Hoang Nguyen, Tu Van Vo, Chul Lee
doaj   +1 more source

Example-based image color and tone style enhancement [PDF]

open access: yes, 2011
Color and tone adjustments are among the most frequent image enhancement operations. We define a color and tone style as a set of explicit or implicit rules governing color and tone adjustments.
Bae S.   +10 more
core   +1 more source

Visible and Near-Infrared Image Acquisition and Fusion for Night Surveillance

open access: yesChemosensors, 2021
Image fusion combines images with different information to create a single, information-rich image. The process may either involve synthesizing images using multiple exposures of the same scene, such as exposure fusion, or synthesizing images of ...
Hyuk-Ju Kwon, Sung-Hak Lee
doaj   +1 more source

Effects of phonological phrasing on syntactic structure [PDF]

open access: yes, 2007
Bantu languages are renowned as tone languages that utilize this suprasegmental feature not only on the lexical level to distinguish lexical items, but also on the grammatical level to distinguish clause types.
Carolyn Harford   +8 more
core   +1 more source

Deep SR-ITM: Joint Learning of Super-Resolution and Inverse Tone-Mapping for 4K UHD HDR Applications [PDF]

open access: yesIEEE International Conference on Computer Vision, 2019
Recent modern displays are now able to render high dynamic range (HDR), high resolution (HR) videos of up to 8K UHD (Ultra High Definition). Consequently, UHD HDR broadcasting and streaming have emerged as high quality premium services.
S. Kim, Jihyong Oh, Munchurl Kim
semanticscholar   +1 more source

Hierarchical tone mapping based on image colour appearance model

open access: yesIET Computer Vision, 2014
To solve the problem of low efficiency and poor effect of the current tone mapping methods for the high dynamic range images, the authors propose a hierarchical tone mapping algorithm based on colour appearance model. The discrete Gaussian kernel is used
Jinsheng Xiao   +4 more
doaj   +1 more source

Deep Tone Mapping Operator for High Dynamic Range Images [PDF]

open access: yesIEEE Transactions on Image Processing, 2019
A computationally fast tone mapping operator (TMO) that can quickly adapt to a wide spectrum of high dynamic range (HDR) content is quintessential for visualization on varied low dynamic range (LDR) output devices such as movie screens or standard ...
A. Rana   +5 more
semanticscholar   +1 more source

Globally Optimized Linear Windowed Tone Mapping [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2010
This paper introduces a new tone mapping operator that performs local linear adjustments on small overlapping windows over the entire input image. While each window applies a local linear adjustment that preserves the monotonicity of the radiance values, the problem is implicitly cast as one of global optimization that satisfies the local constraints ...
Shan, Q., Jia, J., Brown, M.S.
openaire   +3 more sources

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