Results 81 to 90 of about 4,867 (182)

A Subimage Autofocus Bistatic Ground Cartesian Back-Projection Algorithm for Passive Bistatic SAR Based on GEO Satellites

Remote Sensing
As an evolutionary advancement to conventional synthetic aperture radar (SAR), passive bistatic SAR (PBSAR) utilizing geostationary orbit (GEO) satellite signals demonstrates significant potential for high-resolution imaging.
Te Zhao, Jun Wang, Zuhan Cheng, Ziqian Huang, Xueming Song   +4 more
doaj   +1 more source

An Enhanced Phase Gradient Autofocus Algorithm for SAR: A Fractional Fourier Transform Approach

Remote Sensing
Synthetic aperture radar (SAR) technology is one of the imaging radar technologies receiving the most attention worldwide. The main purpose is to detect targets in the area of interest in different settings, such as day/night, various weather conditions,
Kanghyuk Seo, Yonghwi Kwon, Chul Ki Kim
doaj   +1 more source

Deep Adaptive Phase Learning: Enhancing Synthetic Aperture Sonar Imagery Through Learned Coherent Autofocus

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Having well-focused synthetic aperture sonar (SAS) imagery is important for its accurate analysis and support of autonomous systems. Despite advances in motion estimation and image formation methods, there persists a need for robust autofocus algorithms ...
Isaac D. Gerg, Daniel A. Cook, Vishal Monga   +2 more
doaj   +1 more source

Integrated Multi-Receiver SAS Imaging: Combining Omega-k Algorithm With Two-Stage Motion Compensation and Autofocus

IEEE Access
The Omega-k algorithm is an accurate synthetic aperture sonar (SAS) imaging algorithm, and motion compensation (MOCO) is one of the key factors in achieving high-resolution imaging.
Yonghong Yao, Wei Song
doaj   +1 more source

Deep Convolutional Neural Networks for Autofocus Control on a <i>C. elegans</i> Tracking System. [PDF]

Biosensors (Basel)
Escobar-Benavides S, Peñaranda-Jara JJ, Puchalt JC, Sánchez-Salmerón AJ.   +3 more
europepmc   +1 more source

An enhanced mountain climbing search algorithm to enable fast and accurate autofocusing in high resolution fluorescence microscopy. [PDF]

Methods Appl Fluoresc
Jia Y, Ward EN, van Tartwijk FW, Yuan Y, Feng Y, Kaminski CF.   +5 more
europepmc   +1 more source

Design and Optimization of a Twisted Photodiode Pixel Structure for All-Directional Phase-Detection Autofocus CMOS Image Sensors. [PDF]

Sensors (Basel)
Shirahige D, Fukuda K, Ikeda H, Onuki Y, Toyoguchi G, Okamoto K, Wakashima S, Sekine H, Hayashi S, Yoshida R, Iwata J, Matsuno Y, Sakurai K, Yuzurihara H, Ichikawa T.   +14 more
europepmc   +1 more source

Optimizing autofocus under multispectral lighting via enhanced SIFT and Pearson correlation coefficient. [PDF]

PLoS One
Ma C, Zhang M, Dai Z, Zhang Q, Ma J, Niu X, Yan Y.   +6 more
europepmc   +1 more source

Drilling technique of the internal auditory canal in vestibular schwannoma surgery assisted by neuronavigated autofocus microscope. [PDF]

Acta Neurochir (Wien)
Dardo M, Campagnaro L, Boschi A, Tola S, Trabalzini F, Della Puppa A.   +5 more
europepmc   +1 more source

Improving color reliability of digital textile images via optimized acquisition and preprocessing. [PDF]

Sci Rep
Cho Y.
europepmc   +1 more source