Results 21 to 30 of about 286,494 (263)

A Generic, Multimodal Geospatial Data Alignment System for Aerial Navigation

open access: yesRemote Sensing, 2023
We present a template matching algorithm based on local descriptors for aligning two geospatial products of different modalities with a large area asymmetry.
Victor Martin-Lac   +2 more
doaj   +1 more source

Enhancing Deep-Learning Object Detection Performance Based on Fusion of Infrared and Visible Images in Advanced Driver Assistance Systems

open access: yesIEEE Access, 2022
Image recognition technology plays an important role in advanced driver assistance systems (ADAS). The objective of this study is to explore the feasibility of using heterogeneous image fusion to improve the object detection performance of the ADAS ...
Ying-Cheng Lin   +2 more
doaj   +1 more source

An improved adaptive triangular mesh-based image warping method

open access: yesFrontiers in Neurorobotics, 2023
It is of vital importance to stitch the two images into a panorama in many computer vision applications of motion detection and tracking and virtual reality, panoramic photography, and virtual tours.
Wei Tang, Fangxiu Jia, Xiaoming Wang
doaj   +1 more source

Detecting Infected Cucumber Plants with Close-Range Multispectral Imagery

open access: yesRemote Sensing, 2021
This study used close-range multispectral imagery over cucumber plants inside a commercial greenhouse to detect powdery mildew due to Podosphaera xanthii. It was collected using a MicaSense® RedEdge camera at 1.5 m over the top of the plant.
Claudio I. Fernández   +4 more
doaj   +1 more source

Aligning images in the wild

open access: yes2012 IEEE Conference on Computer Vision and Pattern Recognition, 2012
Aligning image pairs with significant appearance change is a long standing computer vision challenge. Much of this problem stems from the local patch descriptors' instability to appearance variation. In this paper we suggest this instability is due less to descriptor corruption and more the difficulty in utilizing local information to canoni-cally ...
Wen-Yan Lin   +4 more
openaire   +3 more sources

Automatic Image Alignment Using Principal Component Analysis

open access: yesIEEE Access, 2018
We present an automatic technique for image alignment using a principal component analysis (PCA) that broadly consists of two steps. The first step is the segmentation of the region of interest by thresholding.
Hafiz Zia Ur Rehman, Sungon Lee
doaj   +1 more source

A method for real-time memory efficient implementation of blob detection in large images [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2017
In this paper we propose a method for real-time blob detection in large images with low memory cost. The method is suitable for implementation on the specialized parallel hardware such as multi-core platforms, FPGA and ASIC.
Petrović Vladimir L.   +1 more
doaj   +1 more source

Two-Step Approach toward Alignment of Spatiotemporal Wide-Area Unmanned Aerial Vehicle Imageries

open access: yesDrones, 2023
Recently, analysis and decision-making based on spatiotemporal unmanned aerial vehicle (UAV) high-resolution imagery are gaining significant attention in smart agriculture.
Hyeonseok Lee   +5 more
doaj   +1 more source

Fundamental Limits in Multi-Image Alignment [PDF]

open access: yesIEEE Transactions on Signal Processing, 2016
The performance of multi-image alignment, bringing different images into one coordinate system, is critical in many applications with varied signal-to-noise ratio (SNR) conditions. A great amount of effort is being invested into developing methods to solve this problem. Several important questions thus arise, including: Which are the fundamental limits
Cecilia Aguerrebere   +3 more
openaire   +2 more sources

A Comparative Analysis of Feature Detectors and Descriptors for Image Stitching

open access: yesApplied Sciences, 2023
Image stitching is a technique that is often employed in image processing and computer vision applications. The feature points in an image provide a significant amount of key information.
Surendra Kumar Sharma   +2 more
doaj   +1 more source

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