scholarly journals A Global Extraction Method of High Repeatability on Discretized Scale-Space Representations

Information ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 376
Author(s):  
Qingming Zhang ◽  
Buhai Shi
Keyword(s):  
Upper Bound ◽  
High Performance ◽  
Scale Space ◽  
Space Representation ◽  
Computational Error ◽  
Viewpoint Change ◽  
Relative Threshold ◽  
Data Points ◽  
Novel Method ◽  
Few Data

This paper presents a novel method to extract local features, which instead of calculating local extrema computes global maxima in a discretized scale-space representation. To avoid interpolating scales on few data points and to achieve perfect rotation invariance, two essential techniques, increasing the width of kernels in pixel and utilizing disk-shaped convolution templates, are adopted in this method. Since the size of a convolution template is finite and finite templates can introduce computational error into convolution, we sufficiently discuss this problem and work out an upper bound of the computational error. The upper bound is utilized in the method to ensure that all features obtained are computed under a given tolerance. Besides, the technique of relative threshold to determine features is adopted to reinforce the robustness for the scene of changing illumination. Simulations show that this new method attains high performance of repeatability in various situations including scale change, rotation, blur, JPEG compression, illumination change, and even viewpoint change.

scholarly journals Faking Signals to Fool Deep Neural Networks in AMC via Few Data Points

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Hongbin Ma ◽  
Shuyuan Yang ◽  
Guangjun He ◽  
Ruowu Wu ◽  
Xiaojun Hao ◽  
...  
Keyword(s):  
Neural Networks ◽  
Deep Neural Networks ◽  
Data Points ◽  
Few Data

Novel method for high-performance simultaneous removal of NO and SO2 by coupling yellow phosphorus emulsion with red mud

2021 ◽  
pp. 131991
Author(s):  
Yu Liu ◽  
Bin Li ◽  
Xiaoli Lei ◽  
Shuai Liu ◽  
Hengxi Zhu ◽  
...  
Keyword(s):  
Red Mud ◽  
High Performance ◽  
Simultaneous Removal ◽  
Yellow Phosphorus ◽  
Novel Method

Fast and robust copy-move forgery detection based on scale-space representation

2017 ◽  
Vol 77 (13) ◽  
pp. 16795-16811 ◽  
Author(s):  
Chun-Su Park ◽  
Joon Yeon Choeh
Keyword(s):  
Scale Space ◽  
Space Representation ◽  
Forgery Detection ◽  
Copy Move Forgery Detection

scholarly journals A Novel Method of Assessment for Monitoring Neuromuscular Fatigue in Australian Rules Football Players

2019 ◽  
Vol 14 (5) ◽  
pp. 598-605 ◽  
Author(s):  
Joel Garrett ◽  
Stuart R. Graham ◽  
Roger G. Eston ◽  
Darren J. Burgess ◽  
Lachlan J. Garrett ◽  
...  
Keyword(s):  
High Performance ◽  
Recovery Phase ◽  
Neuromuscular Fatigue ◽  
Football Players ◽  
Alternative Method ◽  
Jump Test ◽  
Australian Rules Football ◽  
Novel Method ◽  
Run Test ◽  
Method Of Assessment

Purpose: To compare the sensitivity of a submaximal run test (SRT) with a countermovement-jump test (CMJ) to provide an alternative method of measuring neuromuscular fatigue (NMF) in high-performance sport. Methods: A total of 23 professional and semiprofessional Australian rules football players performed an SRT and CMJ test prematch and 48 and 96 h postmatch. Variables from accelerometers recorded during the SRT were player load 1D up (vertical vector), player load 1D side (mediolateral vector), and player load 1D forward (anteroposterior vector). Meaningful difference was examined through magnitude-based inferences (effect size [ES]), with reliability assessed as typical error of measurements expressed as coefficient of variance. Results: A small decrease in CMJ height, ES −0.43 ± 0.39 (likely), was observed 48 h postmatch before returning to baseline 96 h postmatch. This was accompanied by corresponding moderate decreases in the SRT variables player load 1D up, ES −0.60 ± 0.51 (likely), and player load 1D side, ES −0.74 ± 0.57 (likely), 48 h postmatch before also returning to prematch baseline. Conclusion: The results suggest that in the presence of NMF, players use an alternative running profile to produce the same external output (ie, time). This indicates that changes in accelerometer variables during an SRT can be used as an alternative method of measuring NMF in high-performance Australian rules football and provides a flexible option for monitoring changes in the recovery phase postmatch.

A novel method using high-performance liquid chromatography with fluorescence detection for the determination of betaxanthins

2005 ◽  
Vol 1078 (1-2) ◽  
pp. 83-89 ◽  
Author(s):  
Fernando Gandía-Herrero ◽  
Francisco García-Carmona ◽  
Josefa Escribano
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Fluorescence Detection ◽  
High Performance ◽  
Novel Method

Scale Selection for Compact Scale-Space Representation of Vector-Valued Images

2007 ◽  
pp. 32-42
Author(s):  
Cosmin Mihai ◽  
Iris Vanhamel ◽  
Hichem Sahli ◽  
Antonis Katartzis ◽  
Ioannis Pratikakis
Keyword(s):  
Scale Space ◽  
Space Representation ◽  
Scale Selection ◽  
Selection For ◽  
Vector Valued

Wheat Prices and Trade in the Early Roman Empire

2012 ◽  
Author(s):  
Peter Temin
Keyword(s):  
Roman Empire ◽  
Roman Republic ◽  
Small Data ◽  
Data Sets ◽  
Data Points ◽  
Small Data Sets ◽  
Few Data ◽  
Late Roman

This chapter discusses how there is little of what economists call data on markets in Roman times, despite lots of information about prices and transactions. Data, as economists consider it, consist of a set of uniform prices that can be compared with each other. According to scholars, extensive markets existed in the late Roman Republic and early Roman Empire. Even though there is a lack of data, there are enough observations for the price of wheat, the most extensively traded commodity, to perform a test. The problem is that there is only a little bit of data by modern standards. Consequently, the chapter explains why statistics are useful in interpreting small data sets and how one deals with various problems that arise when there are only a few data points.

Towards Smart Service Networks

2015 ◽  
Vol 7 (1) ◽  
pp. 38-59 ◽  
Author(s):  
Yan Wang ◽  
Yehia Taher ◽  
Willem-Jan van den Heuvel
Keyword(s):  
High Performance ◽  
Open Systems ◽  
Peer Interactions ◽  
Interdisciplinary Collaboration ◽  
Service Provisioning ◽  
Service Networks ◽  
Root Cause ◽  
Novel Method ◽  
Smart Service ◽  
And Performance

Service Networks (SNs) are open systems accommodating the co-production of new knowledge and services through organic peer-to-peer interactions. Key to broad success of SNs in practice is their ability to foster and ensure a high performance. By performance we mean the joint effort of tremendous interdisciplinary collaboration, cooperation and coordination among the network participants. However, due to the heterogeneous background of such participants (i.e., business, technical, etc.), operational gaps are likely to appear in the end-to-end service provisioning process. Especially when there are performance anomalies, the SNs lack of traceability to find out the root cause, due to the confusions in the multi-disciplinary communication of SNs participants. To deal with such a problem, we propose a novel method of diagnosing SNs performance on the basis of a systems thinking mindset. By using our diagnostics, the SNs essence and performance are identified and modeled in both static and dynamic manners. The SNs performance can be tuned and optimized with improved traceability to the involved service operations.

scholarly journals SYNTHESIS AND STABILITY OF RESVERATROL-CONJUGATED GOLD NANOPARTICLES MODIFIED WITH POLYETHYLENE GLYCOL

2020 ◽  
pp. 230-236
Author(s):  
RADITYA ISWANDANA ◽  
RICHA NURSELVIANA ◽  
SUTRIYO SUTRIYO
Keyword(s):  
Particle Size ◽  
Gold Nanoparticles ◽  
Polyethylene Glycol ◽  
Zeta Potential ◽  
High Performance ◽  
Entrapment Efficiency ◽  
Test Results ◽  
Novel Method ◽  
The Stability ◽  
Phosphate Buffered Saline

Objective: Gold nanoparticles (AuNPs) are highly useful for drug delivery, but their application is limited by their stability as they readily aggregate.This issue can be prevented by adding a stabilizing agent such as resveratrol (RSV), which is a polyphenol derived from plants, that is used to preventcancer. Therefore, we propose a novel method to prepare stable RSV-conjugated nanoparticles modified with polyethylene glycol (RSV-AuNP-PEG).Methods: In the first step, the Turkevich method was used to synthesize the AuNPs. Then, PEG was added as stabilizer agent and conjugated with RSV.The synthesized conjugates were characterized using ultraviolet-visible spectrophotometry, Fourier transform infrared spectroscopy, particle sizeanalysis, and high-performance liquid chromatography.Results: The obtained RSV-AuNP-PEG had a particle size of 83.93 nm with a polydispersity index (PDI) of 0.562 and formed a translucent purple-redfluid in solution. The zeta potential was −22.9 mV, and the highest entrapment efficiency was 75.86±0.66%. For comparison, the RSV-AuNP solutionwas purple and turbid, the particle size was 51.97 nm with a PDI of 0.694, and the zeta potential was −24.6 mV. The stability test results showed thatthe storage stability of RSV-AuNP-PEG was better than that of AuNP-RSV. Further, the RSV-AuNP-PEG was shown to be most stable in 2% bovine serumalbumin (BSA) while the AuNP-RSV was most stable in 2% BSA in phosphate-buffered saline pH 7.4.Conclusion: These results show that modification of RSV-conjugated AuNPs with PEG effectively prevents their aggregation in storage, but only incertain mediums.

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