Results 31 to 40 of about 1,585,607 (194)

Study on Elimination Algorithms for Line Segment Mismatches

Canadian Journal of Remote Sensing, 2022
Image matching is a key step for remotely sensed image registration and digital elevation model (DEM) generation. Compared with point matching, few studies have focused on line matching for images, especially elimination algorithm of mismatched line ...
Chang Li, Wenqi Jia, Dong Wei
doaj   +1 more source

A Registration Algorithm for Astronomical Images Based on Geometric Constraints and Homography

Remote Sensing, 2023
The registration of astronomical images, is one of the key technologies to improve the detection accuracy of small and weak targets during astronomical image-based observation.
Bin Lin, Xiangpeng Xu, Zhihua Shen, Xia Yang, Lijun Zhong, Xiaohu Zhang   +5 more
doaj   +1 more source

Superresolution Reconstruction of Video Sequence Using a Coarse-to-Fine Registration and Optimal Interpolation Strategy

International Journal of Advanced Robotic Systems, 2013
In this paper, a novel video superresolution (SR) reconstruction approach using a coarse-to-fine registration and optimal interpolation strategy is proposed.
Zunshang Zhu, Xiaolin Liu, Yun Yuan, Xianwei Zhu, Qifeng Yu   +4 more
doaj   +1 more source

DRHT: A Hybrid Mathematical Model for Accurate Ultrasound Probe Calibration and Efficient 3D Reconstruction

Mathematics
The calibration of ultrasound probes is essential for three-dimensional ultrasound reconstruction and navigation. However, the existing calibration methods are often cumbersome and inadequate in accuracy.
Xuquan Ji, Yonghong Zhang, Huaqing Shang, Lei Hu, Xiaozhi Qi, Wenyong Liu   +5 more
doaj   +1 more source

Scene-based nonuniformity correction with homography transformation

CoRR
Imaging, Inverse problems, Functional analysis, Blind ...
Peretz Yafin, Nir A. Sochen, Iftach Klapp   +2 more
openaire   +3 more sources

Vehicle Speed Estimation Using Consecutive Frame Approaches and Deep Image Homography for Image Rectification on Monocular Videos

IEEE Access
In intelligent transportation systems, vehicle speed estimation plays a vital role in traffic monitoring, speed enforcement, and autonomous vehicles.
Dea Angelia Kamil, Wahyono, Agus Harjoko, Kang-Hyun Jo   +3 more
doaj   +1 more source

Robust Calibration Technique for Precise Transformation of Low-Resolution 2D LiDAR Points to Camera Image Pixels in Intelligent Autonomous Driving Systems

Vehicles
In the context of autonomous driving, the fusion of LiDAR and camera sensors is essential for robust obstacle detection and distance estimation. However, accurately estimating the transformation matrix between cost-effective low-resolution LiDAR and ...
Ravichandran Rajesh, Pudureddiyur Venkataraman Manivannan   +1 more
doaj   +1 more source

Food Classification and Meal Intake Amount Estimation through Deep Learning

Applied Sciences, 2023
This paper proposes a method to classify food types and to estimate meal intake amounts in pre- and post-meal images through a deep learning object detection network. The food types and the food regions are detected through Mask R-CNN.
Ji-hwan Kim, Dong-seok Lee, Soon-kak Kwon   +2 more
doaj   +1 more source

Use of Hough Transform and Homography for the Creation of Image Corpora for Smart Agriculture

International Journal on Cybernetics & Informatics, 2023
In the context of smart agriculture, developing deep learning models demands large and highquality datasets for training. However, the current lack of such datasets for specific crops poses a significant challenge to the progress of this field. This research proposes an automated method to facilitate the creation of training datasets through automated ...
Jose A. Brenes, Javier Ferrández-Pastor, José M. Cámara-Zapata, Gabriela Marín-Raventós   +3 more
openaire   +1 more source

ACCURATE VEHICLE SPEED ESTIMATION FROM MONOCULAR CAMERA FOOTAGE [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
A workflow is devised in this paper by which vehicle speeds are estimated semi-automatically via fixed DSLR camera. Deep learning algorithm YOLOv2 was used for vehicle detection, while Simple Online Realtime Tracking (SORT) algorithm enabled for tracking
D. Bell, W. Xiao, P. James
doaj   +1 more source