Results 1 to 10 of about 836,502 (333)

Algorithm for choosing the best frame in a video stream in the task of identity document recognition [PDF]

open access: yesКомпьютерная оптика, 2021
During the process of document recognition in a video stream using a mobile device camera, the image quality of the document varies greatly from frame to frame.
M.A. Aliev   +3 more
doaj   +1 more source

Can Osteotomes Be Sharpened in the Operating Room Inexpensively and Effectively? An Experimental Study on Sandpaper Versus Arkansas Stone

open access: yesThe Turkish Journal of Ear Nose and Throat, 2022
Objective: The maintenance of surgical instruments is an ongoing problem for surgeons, especially in operations such as rhinoplasty where instrument sharpness is very important.
Cem Bayraktar   +2 more
doaj   +1 more source

High-level and Low-level Feature Set for Image Caption Generation with Optimized Convolutional Neural Network

open access: yesJournal of Telecommunications and Information Technology, 2022
Automatic creation of image descriptions, i.e. captioning of images, is an important topic in artificial intelligence (AI) that bridges the gap between computer vision (CV) and natural language processing (NLP).
Mukesh Kalla   +3 more
doaj   +1 more source

Effect of Alloying Elements on the Sharpness Retention of Knife Blades Made of High Carbon Martensitic Stainless Steels

open access: yesMetals, 2022
Blades usually become blunt as the blade tip suffers wear during cutting, and improving the sharpness retention of steel blades has become an attractive prospect in various industries.
Dong Wu, Qinyi Zhang, Wei Liu
doaj   +1 more source

Evaluation and Improvement of the Sound Quality of a Diesel Engine Based on Tests and Simulations

open access: yesEnergies, 2020
Traditional acoustic evaluation of a diesel engine generally uses the A-weighted sound pressure level (AWSPL) and radiated sound power to assess the noise of an engine prototype present in an experiment.
Zhengwei Yang   +3 more
doaj   +1 more source

Track edges in metal-evaporated tape and thin metal-particle tape [PDF]

open access: yes, 1999
MFM images of tracks written in ME and MP tape have been obtained. The analysis of the images concentrated on the track edges. A track written with signals of 0.5 μm wavelength overwrites a part of a track written with a wavelength of 1 μm. The sharpness
Groenland, J.P.J.   +4 more
core   +9 more sources

Intraindividual evaluation of effects of image filter function on image quality in coronary computed tomography angiography

open access: yesFrontiers in Cardiovascular Medicine, 2022
ObjectivesTo evaluate whether applying image filters (smooth 3D+ and edge-2) improves image quality in coronary CT angiography (CCTA).MethodsNinety patients (routine group) with suspected coronary artery diseases based on 16-cm wide coverage detector CT ...
Liang Jin   +5 more
doaj   +1 more source

Multifocal image processing [PDF]

open access: yes, 2014
In this paper, we present a processing method for digital images from an optical microscope. High-pass type filters are generally used for image focusing. They enhance the high spatial frequencies. These filters are not appropriate if the lack of
Druckmüllerová, H., Martišek, D.
core   +1 more source

On the Sharpness and Bias of Quantum Effects [PDF]

open access: yes, 2009
The question of quantifying the sharpness (or unsharpness) of a quantum mechanical effect is investigated. Apart from sharpness, another property, bias, is found to be relevant for the joint measurability or coexistence of two effects.
J. Neumann von   +5 more
core   +2 more sources

Tip-Enhanced Fluorescence Microscopy at 10 Nanometer Resolution [PDF]

open access: yes, 2004
We demonstrate unambiguously that the field enhancement near the apex of a laser-illuminated silicon tip decays according to a power law that is moderated by a single parameter characterizing the tip sharpness.
Gerton, Jordan M.   +4 more
core   +1 more source

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