Results 21 to 30 of about 2,467,391 (351)

AFE-ORB-SLAM: Robust Monocular VSLAM Based on Adaptive FAST Threshold and Image Enhancement for Complex Lighting Environments [PDF]

open access: hybridJournal of Intelligent and Robotic Systems, 2022
Monocular Visual Simultaneous Localisation and Mapping (VSLAM) systems are widely utilised for intelligent mobile robots to work in unknown environments.
Leijian Yu, Erfu Yang, Beiya Yang
openalex   +2 more sources

Interactive lighting editing system for single indoor low-light scene images with corresponding depth maps

open access: yesVisual Informatics, 2022
We propose a novel interactive lighting editing system for lighting a single indoor RGB image based on spherical harmonic lighting. It allows users to intuitively edit illumination and relight the complicated low-light indoor scene.
Zhongyun Bao   +3 more
doaj   +1 more source

Lighting-and Personal Characteristic-Aware Markov Random Field Model for Facial Image Relighting System

open access: yesIEEE Access, 2022
A learning-based image relighting framework is proposed for automatically changing the lighting conditions of facial images from one lighting source to another. Given only a 2D unseen facial testing image, the framework automatically infers the highlight
Ching-Ting Tu   +2 more
doaj   +1 more source

Deepfake detection method based on patch-wise lighting inconsistency

open access: yes网络与信息安全学报, 2023
The rapid development and widespread dissemination of deepfake techniques has caused increased concern.The malicious application of deepfake techniques also poses a potential threat to the society.Therefore, how to detect deepfake content has become a ...
Wenxuan WU   +3 more
doaj   +3 more sources

Spectral Super-Resolution for High Dynamic Range Images

open access: yesJournal of Imaging, 2023
The images we commonly use are RGB images that contain three pieces of information: red, green, and blue. On the other hand, hyperspectral (HS) images retain wavelength information.
Yuki Mikamoto   +4 more
doaj   +1 more source

Image Relighting Network Based on Context-gated Residuals and Multi-scale Attention [PDF]

open access: yesJisuanji kexue, 2023
Image relighting is commonly used in image editing and data augmentation tasks.Existing image relighting methods suffer from estimating accurate shadows and obtaining consistent structures and clear texture when removing and rendering sha-dows in complex
WANG Wei, DU Xiangcheng, JIN Cheng
doaj   +1 more source

Deep Image-based Illumination Harmonization [PDF]

open access: yesComputer Vision and Pattern Recognition, 2021
Integrating a foreground object into a background scene with illumination harmonization is an important but challenging task in computer vision and augmented reality community.
Zhongyun Bao   +6 more
semanticscholar   +1 more source

What image features guide lightness perception? [PDF]

open access: yes, 2018
Lightness constancy is the ability to perceive black and white surface colors under a wide range of lighting conditions. This fundamental visual ability is not well understood, and current theories differ greatly on what image features are important for ...
Gold, Jason M.   +2 more
core   +1 more source

REGION HOMOGENEITY IN THE LOGARITHMIC IMAGE PROCESSING FRAMEWORK: APPLICATION TO REGION GROWING ALGORITHMS

open access: yesImage Analysis and Stereology, 2019
In order to create an image segmentation method robust to lighting changes, two novel homogeneity criteria of an image region were studied. Both were defined using the Logarithmic Image Processing (LIP) framework whose laws model lighting changes.
Guillaume Noyel, Michel Jourlin
doaj   +1 more source

Multiscale Retinex Application to Analyze Face Recognition

open access: yesJOIN: Jurnal Online Informatika, 2020
The main challenge that facial recognition introduces is the difficulty of uneven lighting or dark tendencies. The image is poorly lit, which makes it difficult for the system to perform facial recognition.
Supriyanto Supriyanto   +3 more
doaj   +1 more source

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