Results 1 to 10 of about 586,379 (132)

Double-phase metasurface operators for all-optical image processing [PDF]

Light: Science & Applications
All-optical image processing offers a high-speed, energy-efficient alternative to conventional electronic systems by leveraging the wave nature of light for parallel computation.
Linzhi Yu, Haobijam J. Singh, Jesse Pietila, Humeyra Caglayan   +3 more
doaj   +2 more sources

Three-Dimensional Deformation of the 2023 Turkey Mw 7.8 and Mw 7.7 Earthquake Sequence Obtained by Fusing Optical and SAR Images

Remote Sensing, 2023
In February 2023, Mw 7.8 and Mw 7.7 earthquakes struck southeastern Turkey. Generating a coseismic 3D deformation field that can directly reflect the characteristics of surface deformation is important for revealing the movement mode of a seismogenic ...
Qi An, Guangcai Feng, Lijia He, Zhiqiang Xiong, Hao Lu, Xiuhua Wang, Jianchao Wei   +6 more
doaj   +1 more source

MULTI-ORIENTATION EDGE-BASED SATELLITE IMAGE MATCHING METHOD FOR OPTICAL AND SAR IMAGES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Multi-sensor image matching is a key technology to fully exploit complementary information on images from multiple sources. In particular, the nonlinear radiance distortion between optical and SAR images makes image matching very difficult.
Y. Lin, Y. Lin, L. Li, L. Wei, L. Liu, J. Yu   +5 more
doaj   +1 more source

Deep HDR Deghosting by Motion-Attention Fusion Network

Sensors, 2022
Multi-exposure image fusion (MEF) methods for high dynamic range (HDR) imaging suffer from ghosting artifacts when dealing with moving objects in dynamic scenes. The state-of-the-art methods use optical flow to align low dynamic range (LDR) images before
Yifan Xiao, Peter Veelaert, Wilfried Philips   +2 more
doaj   +1 more source

Correlation Image Sensor for Algebraic Solution of Optical Flow

IEEE Journal of the Electron Devices Society, 2021
In this article, we describe several enhancements of a three-phase correlation image sensor (3PCIS) toward its uses for a direct algebraic method of optical flow detection, i.e., determining velocity field of image patterns for detecting, tracking, and ...
Shigeru Ando, Masanori Nagase, Takashi Watanabe, Tomohiko Kosugi, Tetsuya Iida   +4 more
doaj   +1 more source

Peridynamic Approach to Digital Image Correlation Strain Calculation Algorithm

Applied Sciences, 2022
Digital image correlation is an experimental optical non-contact full field displacement and strain evaluation method based on the surface subsets tracking with photo cameras, digital images processing, and numerical computation.
Tomas Vaitkunas, Paulius Griskevicius, Adi Adumitroaie   +2 more
doaj   +1 more source

A Bridge Neural Network-Based Optical-SAR Image Joint Intelligent Interpretation Framework

Space: Science & Technology, 2021
The current interpretation technology of remote sensing images is mainly focused on single-modal data, which cannot fully utilize the complementary and correlated information of multimodal data with heterogeneous characteristics, especially for synthetic
Meiyu Huang, Yao Xu, Lixin Qian, Weili Shi, Yaqin Zhang, Wei Bao, Nan Wang, Xuejiao Liu, Xueshuang Xiang   +8 more
doaj   +1 more source

Vector Angular Continuity in the Fusion of Coseismic Deformations at Multiple Optical Correlation Scales

Sensors, 2023
As one of the common techniques for measuring coseismic deformations, optical image correlation techniques are capable of overcoming the drawbacks of inadequate coherence and phase blurring which can occur in radar interferometry, as well as the problem ...
Rui Guo, Qiming Zeng, Shangzong Lu
doaj   +1 more source

Image correlation method for DNA sequence alignment. [PDF]

PLoS ONE, 2012
The complexity of searches and the volume of genomic data make sequence alignment one of bioinformatics most active research areas. New alignment approaches have incorporated digital signal processing techniques.
Millaray Curilem Saldías, Felipe Villarroel Sassarini, Carlos Muñoz Poblete, Asticio Vargas Vásquez, Iván Maureira Butler   +4 more
doaj   +1 more source

Gradient-Descent-like Ghost Imaging

Sensors, 2021
Ghost imaging is an indirect optical imaging technique, which retrieves object information by calculating the intensity correlation between reference and bucket signals.
Wen-Kai Yu, Chen-Xi Zhu, Ya-Xin Li, Shuo-Fei Wang, Chong Cao   +4 more
doaj   +1 more source