Results 1 to 10 of about 65,471 (302)

Global and Adaptive Contrast Enhancement for Low Illumination Gray Images

IEEE Access, 2019
Aiming at solving the problems of overall darkness, uneven illumination and low contrast of image under low illumination conditions, we present a global and adaptive contrast enhancement algorithm for low illumination gray images in this paper.
Canlin Li, Jinhua Liu, Anyi Liu, Qinge Wu, Lihua Bi   +4 more
doaj   +1 more source

An Approach to Global Illumination Calculation Based on Hybrid Cone Tracing

IEEE Access, 2020
For 3D geographic information systems (GIS) or video game systems, global illumination (GI) effect can greatly improve the understanding of the volumetric structure and the spatial relationships of objects in the scene.
Tao Liu, Jin Gao, Zhengling Lei
doaj   +1 more source

Joint Luminance Adjustment and Color Correction for Low-Light Image Enhancement Network

Applied Sciences
Most of the existing low-light enhancement research focuses on global illumination enhancement while ignoring the issues of brightness unevenness and color distortion.
Nenghuan Zhang, Xiao Han, Chenming Liu, Ruipeng Gang, Sai Ma, Yizhen Cao   +5 more
doaj   +1 more source

Underground low-light self-supervised image enhancement method based on structure and texture perception

Meitan xuebao
Due to the complex spatial environment and uneven artificial lighting underground, images captured by underground visual equipment often suffer from insufficient overall or partial lighting and poor visibility of image content. Existing image enhancement
Shan PAN, Ting YU, Wei CHEN, Zijian TIAN, Zhongwen YUE   +4 more
doaj   +1 more source

Estimation of Local Illumination Consistency Based on Improved Vision Transformer [PDF]

Jisuanji gongcheng
Illumination 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   +1 more source

Object-Oriented Hierarchy Radiation Consistency for Different Temporal and Different Sensor Images

Sensors, 2018
In the paper, we propose a novel object-oriented hierarchy radiation consistency method for dense matching of different temporal and different sensor data in the 3D reconstruction.
Nan Su, Yiming Yan, Chunhui Zhao, Liguo Wang   +3 more
doaj   +1 more source

Experiencing the Tangible Past through Virtual Reconstruction: Cultural Heritage of Buildings and their Environmental Boundaries

Archeomatica, 2013
Accurate reconstruction and representation of cultural heritage buildings within virtual environment using auralization and visualization techniques are presented.
Mojtaba Navvab, FABIO BISEGNA, FRANCO GUGLIERMETTI,   +2 more
doaj  

A Spatiotemporal U-Net-Based Data Preprocessing Pipeline for Sun-Synchronous Path Planning in Lunar South Polar Exploration

Remote Sensing
The dynamic illumination conditions in the Moon’s polar region present challenges for future rover explorations, which require enhanced efficiency and intelligent data preprocessing for Sun-synchronous path planning.
Yang Chen, Guangfei Wei, Hao Zhang, Jianfeng Lu, Fuchuan Pang   +4 more
doaj   +1 more source

Global illumination rendering versus volume rendering for the forensic evaluation of stab wounds using computed tomography. [PDF]

Sci Rep, 2022
Fukumoto W, Kitera N, Mitani H, Sueoka T, Kondo S, Kawashita I, Nakamura Y, Nagao M, Awai K.   +8 more
europepmc   +1 more source

Toward Illumination-Guided Bilateral Grid Learning in Zero-Reference Low-Light Enhancement

IEEE Access
Images captured in low-light conditions often suffer from overexposure, amplified noise, and uneven illumination. Supervised enhancement methods tend to overfit specific scenes, while unsupervised ones struggle to model degradations without reference ...
Shuiping Zhang, Zhuang Yin, Fanghao Tian, Haiyang Jiang, Chao Wang, Qing Huang, Jin Zhang   +6 more
doaj   +1 more source