Results 51 to 60 of about 390,451 (189)

Enhanced Deep-Learning-Based Automatic Left-Femur Segmentation Scheme with Attribute Augmentation

open access: yesSensors, 2023
This research proposes augmenting cropped computed tomography (CT) slices with data attributes to enhance the performance of a deep-learning-based automatic left-femur segmentation scheme. The data attribute is the lying position for the left-femur model.
Kamonchat Apivanichkul   +4 more
doaj   +1 more source

Is there a relationship between peak‐signal‐to‐noise ratio and structural similarity index measure?

open access: yesIET Image Processing, 2013
In this study, the authors analyse two well‐known image quality metrics, peak‐signal‐to‐noise ratio (PSNR) as well as structural similarity index measure (SSIM), and the authors derive an analytical relationship between them which works for some kinds of common image degradations such as Gaussian blur, additive Gaussian noise, Jpeg and Jpeg2000 ...
Alain Horé, Djemel Ziou
openaire   +1 more source

Sparse Representation-based Image Quality Assessment

open access: yes, 2013
A successful approach to image quality assessment involves comparing the structural information between a distorted and its reference image. However, extracting structural information that is perceptually important to our visual system is a challenging ...
Guha, Tanaya   +2 more
core   +1 more source

Structural similarity of lithospheric velocity models of Chinese mainlandKey points

open access: yesEarthquake Science
Existing lithospheric velocity models exhibit similar structures typically associated with the first-order tectonic features, with dissimilarities due to different data and methods used in model generation.
Feng Huang   +3 more
doaj   +1 more source

Speed Estimation of Multiple Moving Objects from a Moving UAV Platform

open access: yesISPRS International Journal of Geo-Information, 2019
Speed detection of a moving object using an optical camera has always been an important subject to study in computer vision. This is one of the key components to address in many application areas, such as transportation systems, military and naval ...
Debojit Biswas   +3 more
doaj   +1 more source

Enhancement of the structural similarity index SSIM

open access: yesInformatika, 2018
Properties of a popular measure of comparing a digital image with a reference – the index of structural    similarity, called SSIM in the literature – are explored. It is proved that the SSIM and its derivative functions are not metrics.
V. V. Starovoitov
doaj  

Multi-threshold Segmentation Method with High Accuracy and Adaptability Using Circular Histogram Linearization [PDF]

open access: yesJisuanji gongcheng
To address the problems of low segmentation accuracy and poor adaptability of existing multi-threshold segmentation methods for color images, a multi-threshold segmentation method with high accuracy and adaptability based on circular histogram ...
Cong HUANG, Yaobin ZOU, Shuifa SUN
doaj   +1 more source

Improving Unsupervised Defect Segmentation by Applying Structural Similarity to Autoencoders

open access: yes, 2019
Convolutional autoencoders have emerged as popular methods for unsupervised defect segmentation on image data. Most commonly, this task is performed by thresholding a pixel-wise reconstruction error based on an $\ell^p$ distance. This procedure, however,
Bergmann, Paul   +4 more
core   +1 more source

ATTNFNET: feature aware depth-to-pressure translation with cGAN training

open access: yesFrontiers in Medical Technology
Excessive pressure and shear forces on bedridden patients can lead to pressure injuries, particularly on those with existing ulcers. Monitoring pressure distribution is crucial for preventing such injuries by identifying high-risk areas.
Neevkumar Manavar   +4 more
doaj   +1 more source

Blockchain based medical image encryption using Arnold’s cat map in a cloud environment

open access: yesScientific Reports
Improved software for processing medical images has inspired tremendous interest in modern medicine in recent years. Modern healthcare equipment generates huge amounts of data, such as scanned medical images and computerized patient information, which ...
Saba Inam   +3 more
doaj   +1 more source

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