Results 11 to 20 of about 2,159,265 (282)

Unsupervised Blur Kernel Estimation and Correction for Blind Super-Resolution

open access: yesIEEE Access, 2022
Blind super-resolution (blind-SR) is an important task in the field of computer vision and has various applications in real-world. Blur kernel estimation is the main element of blind-SR along with the adaptive SR networks and a more accurately estimated ...
Youngsoo Kim   +3 more
doaj   +3 more sources

Space-variant blur kernel estimation and image deblurring through kernel clustering

open access: yesSignal Processing: Image Communication, 2019
Abstract This paper presents a space-variant blur kernel estimation and image deblurring framework. For space-variant blur kernel estimation, the input image is divided into small patches, and for each patch, the blur kernel is estimated. The estimated kernels are then grouped to determine different kernel clusters in the image.
M. Zeshan Alam   +2 more
openaire   +3 more sources

Space-varying blur kernel estimation and image deblurring

open access: yesSPIE Proceedings, 2014
In recent years, we have seen highly successful blind image deblurring algorithms that can even handle large motion blurs. Most of these algorithms assume that the entire image is blurred with a single blur kernel. This assumption does not hold if the scene depth is not negligible or when there are multiple objects moving differently in the scene ...
Qinchun Qian, Bahadir K. Gunturk
openaire   +4 more sources

A Sharpness-Optimized Partitioned PSF Estimation Method for UAV TDI Push-Broom Image Deblurring [PDF]

open access: yesSensors
In uncrewed aerial vehicle (UAV)-based ground observation and detection missions involving high-speed moving targets or low-light conditions, Time Delay Integration (TDI) cameras enhance image brightness through multi-stage charge accumulation.
Zhen Zhang, Min Xu
doaj   +2 more sources

Quantitative Kernel estimation from traffic signs using slanted edge spatial frequency response as a sharpness metric [PDF]

open access: yesScientific Reports
Sharpness is a critical optical property of automotive cameras, measured by the spatial frequency response (SFR) within the end-of-line (EOL) test after manufacturing.
Amit Pandey   +4 more
doaj   +2 more sources

Lightweight Implicit Blur Kernel Estimation Network for Blind Image Super-Resolution

open access: yesInformation, 2023
Blind image super-resolution (Blind-SR) is the process of leveraging a low-resolution (LR) image, with unknown degradation, to generate its high-resolution (HR) version.
Asif Hussain Khan   +2 more
doaj   +3 more sources

Robust Image Restoration for Motion Blur of Image Sensors

open access: yesSensors, 2016
Blind image restoration algorithms for motion blur have been deeply researched in the past years. Although great progress has been made, blurred images containing large blur and rich, small details still cannot be restored perfectly.
Fasheng Yang   +4 more
doaj   +2 more sources

Blur Kernel Estimation by Using Bees Algorithm [PDF]

open access: yes, 2016
Camera shake is a common source of degradation indigital images taken by an unmanned air vehicle (UAV).Usually, blur kernel is used to reduce the taken image. Blurkernel means the map of camera shake while photo is taken.Estimating an unknown blur kernel
ONAY, Murat
openaire   +3 more sources

Blind Text Image Deblurring Algorithm Based on Multi-Scale Fusion and Sparse Priors

open access: yesIEEE Access, 2023
The goal of blind text image deblurring is to obtain a clean text image from the given blurry text image without knowing the blur kernel. Sparsity-based methods have been shown their effectiveness in various blind text image deblurring models.
Zhe Li   +3 more
doaj   +1 more source

Research on Blind Super-Resolution Technology for Infrared Images of Power Equipment Based on Compressed Sensing Theory

open access: yesSensors, 2021
Infrared images of power equipment play an important role in power equipment status monitoring and fault identification. Aiming to resolve the problems of low resolution and insufficient clarity in the application of infrared images, we propose a blind ...
Yan Wang   +3 more
doaj   +1 more source

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