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Improving re-sampling detection by adding noise
2010
Media Forensics and Security II
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Gaussian/Uniform noise in the range of 28-24 dB is added to the image and the images thus formed are passed to the re-sampling detector. ...
Adding noise suppresses the JPEG artifacts while the periodic patterns due to re-sampling are partially retained. JPEG images of QF range 75-90 are considered. ...
Adding Noise to suppress JPEG blockiness and detect re-sampling We propose a simple method to suppress the JPEG artifacts by adding noise to the image pixels. ...
doi:10.1117/12.839086
dblp:conf/mediaforensics/NatarajSM10
fatcat:rwsnqccgwnfg3fay626bkxceze
Improving The Robustness Of Right Whale Detection In Noisy Conditions Using Denoising Autoencoders And Augmented Training
2021
ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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To mitigate the noise we apply DAEs and consider how best to train the classifier by augmenting clean training data with examples contaminated by noise. ...
The aim of this paper is to examine denoising autoencoders (DAEs) for improving the detection of right whales recorded in harsh marine environments. ...
Noisy data is created by adding noise samples to the whale recordings at SNRs from +5dB down to -10dB. ...
doi:10.1109/icassp39728.2021.9414682
fatcat:toevadoz2beedknin2eb6foca4
Effect of signal delay on auditory detection with gated uncorrelated noise
1983
Bulletin of the Psychonomic Society
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As the onset of the signal is delayed, detection in gated noise does not differ from that found with continuous noise. ...
This is in agreement with an earlier study on the effect of signal delay on detection with gated monaural and correlated noise. ...
There is a slight improvement in detection as the onset of the signal is delayed re that of the noise. ...
doi:10.3758/bf03329947
fatcat:n6rfpw43ybd3fpberbn5dnqbsa
Resampling Detection in Digital Images: A Survey
2013
International Journal of Computer Applications
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In [11] on adding controlled noise (by adjusting the noise power), JPEG periodic patterns were suppressed while the periodic re-sampling patterns were partially retained. ...
Hence, the current re-sampling detectors are able to detect re-sampling only up to a JPEG QF of 95 [1] [9] .
Adding Noise to suppress JPEG blockiness JPEG is a lossy compression scheme. ...
doi:10.5120/14597-2838
fatcat:4l57gp7dprh6hbeijbdfgjkxja
Signal Enhancement of a Variable Rate Vocoder with a Hybrid domain SNR Estimator
2019
KSII Transactions on Internet and Information Systems
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In the existing sound quality improvement method, the voice activated is detected or used, or statistical methods are used by the large mount of data. ...
Finally, this application improves the quality of the vocoder by enhancing sound quality adaptively. ...
The sample was read repeatedly by five men and five women. The result values were obtained by adding the noise to the sampling and measuring the SNR and PESQ. ...
doi:10.3837/tiis.2019.02.026
fatcat:du44t7xqrfaoliujpksc2kvoee
No Surprises: Training Robust Lung Nodule Detection for Low-Dose CT Scans by Augmenting with Adversarial Attacks
[article]
2020
arXiv
pre-print
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samples in the training set and prone to imperceptible noise perturbations. ...
In this work, we propose to add adversarial synthetic nodules and adversarial attack samples to the training data to improve the generalization and the robustness of the lung nodule detection systems. ...
The data augmentation by adding random Poisson noise [41] into the training patches (beta+poisson and beta+poisson+syn) achieved slightly higher detection performance than adding the adversarial noise ...
arXiv:2003.03824v2
fatcat:gf2kv7xgc5gftmdzl3v5pzty7i
On the performance quantification of resonant refractive index sensors
2008
Optics Express
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Additionally, it will lead to design strategies for performance improvement of RI sensors. ...
Here we set forth a rigorous definition for the detection limit of resonant RI sensors that accounts for all parameters that affect the detection performance. ...
Acknowledgments This work is sponsored by the Wallace H. Coulter Foundation, 3M Non-Tenured Faculty Award, and the NIH (1K25 EB006011). ...
doi:10.1364/oe.16.001020
pmid:18542175
pmcid:PMC3071988
fatcat:2iruytdoqna7xm3f72k7azsvou
In-pipe leak detection by Minimum Residual complexity: A Robust time Delay Estimation method against correlated noise
[article]
2013
arXiv
pre-print
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2013 pre-print arXiv:1307.3658v1 fatcat:a4v4je7v5ndpxa76fvmg3nz5ti
The comparison confirms the advantages of RC relative to CC and MI, in robustness against both correlated noises and reduction of number of samples. ...
The properties of TDE by RC is compared with those of Cross Correlation(CC) and Mutual Information(MI) similarity measures on our experimental data. ...
The correlated noises added to these signals were 100 times greater than the previous noise. ...
arXiv:1307.3658v2
fatcat:3iywzdtpkzfbtncs3cx5jto4ny
A cross-correlation sub-sampling receiver for low power applications in a low SINR environment
2018
2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)
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In this respect, sub-sampling receivers have shown promising results but suffer from noise folding and interference aliasing. ...
These improvements allow for a lower-power and lower-cost implementation. ...
Noise suppression In order to measure noise suppression, white Gaussian noise is added to the signal. ...
doi:10.1109/iemcon.2018.8614927
fatcat:bqeigb3w4na6jltuka6d5mpbya
Accurate Peak Detection for Optical Sensing with Reduced Sampling Rate and Calculation Complexity
2021
Sensors
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Direct maximum value readout (DMVR) is the simplest peak detection method. However, the detection accuracy of DMVR is sensitive to noise and the sampling resolution. ...
The performance of interrogation based sensing systems is significantly determined by the accuracy of the wavelength peak detection processing. ...
The re-circulated optical signal is detected by the receiver module and its time trace is recorded by the oscilloscope with a sampling rate of 25 kS/s. ...
doi:10.3390/s21072306
pmid:33806172
fatcat:w4j5ylqxkrgr3esqzlxnjfipsu
Image Preprocessing Assessment Detecting Low Contrast Regions under Non-homogeneous Light Conditions
[chapter]
2014
Lecture Notes in Computer Science
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The outcome shows that an appropriate image pre-processing is required to improve the detection process performance for the given circumstances. ...
The images used in this paper were obtained from a visual inspection prototype for flaw detection on dentures. ...
The outcomes from both detection processes will be compared by amount of detected flaw samples. ...
doi:10.1007/978-3-642-53926-8_10
fatcat:mxyv47nnkrf4jnoxv3wvpqreye
Random Erasing Data Augmentation
[article]
2017
arXiv
pre-print
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, object detection and person re-identification. ...
Albeit simple, Random Erasing is complementary to commonly used data augmentation techniques such as random cropping and flipping, and yields consistent improvement over strong baselines in image classification ...
person re-ID. • Improving the robustness of CNNs to partially occluded samples. ...
arXiv:1708.04896v2
fatcat:7qhtgiwhwbd7rbvkszhcy6eqfq
Measurement of CO2 by Wavelength Modulated Reinjection Off-Axis Integrated Cavity Output Spectroscopy at 2 μm
2021
Atmosphere
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On the basis of an off-axis integrated output spectroscopy (OA-ICOS), combined with an optical reinjection (RE) approach to improve signal intensity, and wavelength modulation spectroscopy (WMS) to improve ...
The Allan variance results showed that the detection limit of the system is 0.35 ppm when the average system time is 230 s. ...
To further improve the SNR, wavelength modulation spectroscopy (WMS) was added to the RE-OA-ICOS system. ...
doi:10.3390/atmos12101247
fatcat:ia76kalfifckjcxjibysegs6r4
Peak Position Error Reduction Algorithm for Residual Gas Analyzer
2016
International Journal of Engineering Research and
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In this paper, we propose a novel noise reduction method, which is a digital signal processing technology required in developing the RGA, for reducing various noises added to the measurement data to improve ...
The data obtained from the RGA is contaminated by various noises, such as the power noises, measuring noise and etc. ...
Also, white Gaussian noises are added to the obtained data in the process of signal detection and conversion. ...
doi:10.17577/ijertv5is110207
fatcat:y34hq2an25d33ptossixkumwzq
Effect of signal delay on auditory detection with gated noise
1967
Psychonomic Science
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As the onset of the signal is delayed, binaural detection improves quite rapidly. Monaural detection improves with signal delay, but at a slower rate. ...
Monaural and binaural detection of a gated signal is more difficult when the noise is gated simultaneously with the signal than when the noise is continuous. ...
In the approach taken by Peterson, Birdsall, & Fox (1954) , and by Jeffress (1964) , detection is based upon some difference between a sample of noise (N) and signal- plus-noise (S+N). ...
doi:10.3758/bf03332257
fatcat:iruioqbo6zew3nu5cs5nhyfycu
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