Results 11 to 20 of about 1,741,443 (291)
Estimation of Local Illumination Consistency Based on Improved Vision Transformer [PDF]
Jisuanji gongchengIllumination consistency is a key factor in achieving the organic fusion of virtual and real elements in Augmented Reality (AR) systems. Owing to the constraints of capture perspectives and the complexity of scene illumination, developers often overlook ...
WANG Yang, SONG Shijia, WANG Heqin, YUAN Zhenyu, ZHAO Lijun, WU Qilin
doaj +2 more sources
Green Stability Assumption: Unsupervised Learning for Statistics-Based Illumination Estimation
Journal of Imaging, 2018 In the image processing pipeline of almost every digital camera, there is a part for removing the influence of illumination on the colors of the image scene.
Nikola Banić, Sven Lončarić
doaj +2 more sources
Surface reflection model estimation from naturally illuminated image sequences [PDF]
, 1997 This thesis addresses the problem of estimating the surface reflection model of objects observed in a terrestrial scene, illuminated by natural illumination; that is, a scene which is illuminated by sun and sky light alone.
Love, Robert Charles
core +7 more sources
Redefining Accuracy: Underwater Depth Estimation for Irregular Illumination Scenes
SensorsAcquiring underwater depth maps is essential as they provide indispensable three-dimensional spatial information for visualizing the underwater environment.
Tong Liu, Sainan Zhang, Zhibin Yu
doaj +2 more sources
Illumination invariance and shadow compensation on hyperspectral images [PDF]
, 2014 To obtain intrinsic reflectance of the scene by hyperspectral imaging systems has been a scientific and engineering challenge. Factors such as illumination variations, atmospheric effects and viewing geometries are common artefacts which modulate the way
Ibrahim, Izzati
core +7 more sources
Deep outdoor illumination estimation [PDF]
2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2017 We present a CNN-based technique to estimate high-dynamic range outdoor illumination from a single low dynamic range image. To train the CNN, we leverage a large dataset of outdoor panoramas. We fit a low-dimensional physically-based outdoor illumination model to the skies in these panoramas giving us a compact set of parameters (including sun position,
Yannick Hold-Geoffroy +4 more
openaire +3 more sources
Gamut Constrained Illuminant Estimation [PDF]
International Journal of Computer Vision, 2003 This paper presents a novel solution to the illuminant estimation problem: the problem of how, given an image of a scene taken under an unknown illuminant, we can recover an estimate of that light. The work is founded on previous gamut mapping solutions to the problem which solve for a scene illuminant by determining the set of diagonal mappings which ...
Finlayson, Graham +2 more
openaire +3 more sources
Illuminant Estimation Using Adaptive Neuro-Fuzzy Inference System
Applied Sciences, 2021 Computational color constancy (CCC) is a fundamental prerequisite for many computer vision tasks. The key of CCC is to estimate illuminant color so that the image of a scene under varying illumination can be normalized to an image under the canonical ...
Yunhui Luo +3 more
doaj +1 more source
Illuminance Flow Estimation by Regression [PDF]
International Journal of Computer Vision, 2010 We investigate the estimation of illuminance flow using Histograms of Oriented Gradient features (HOGs). In a regression setting, we found for both ridge regression and support vector machines, that the optimal solution shows close resemblance to the gradient based structure tensor (also known as the second moment matrix).
Karlsson, SM +3 more
openaire +8 more sources
IEEE Access, 2021 For the imaging signal processing (ISP) pipeline of digital image devices, it is of high significance to remove undesirable illuminant effects and obtain color invariance, commonly known as ‘computational color constancy’.
Ho-Hyoung Choi, Byoung-Ju Yun
doaj +1 more source