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Improving re-sampling detection by adding noise

Lakshmanan Nataraj, Anindya Sarkar, B. S. Manjunath, Nasir D. Memon, Jana Dittmann, Adnan M. Alattar, Edward J. Delp III
2010 Media Forensics and Security II  
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

W. Vickers, B. Milner, R. Lee
2021 ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
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

W. A. Wilbanks
1983 Bulletin of the Psychonomic Society  
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

Archana V.Mire, S. B. Dhok, N. J. Mistry, P. D. Porey
2013 International Journal of Computer Applications  
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  
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]

Siqi Liu, Arnaud Arindra Adiyoso Setio, Florin C. Ghesu, Eli Gibson, Sasa Grbic, Bogdan Georgescu, Dorin Comaniciu
2020 arXiv   pre-print
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

Ian M. White, Xudong Fan
2008 Optics Express  
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]

A. M. Ahmadi, A. Amjadi, A. R. Bahrampour, H. Ravanbod
2013 arXiv   pre-print
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

M. R. M. Mikhael, M. S. Oude Alink, A. B. J. Kokkeler
2018 2018 IEEE 9th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)  
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

Jiun-Yu Sung, Jin-Kai Chen, Shien-Kuei Liaw, Hiroki Kishikawa
2021 Sensors  
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]

Camilo Vargas, Jeyson Molina, John W. Branch, Alejandro Restrepo
2014 Lecture Notes in Computer Science  
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]

Zhun Zhong, Liang Zheng, Guoliang Kang, Shaozi Li, Yi Yang
2017 arXiv   pre-print
, 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

Zihao Yuan, Yinbo Huang, Xingji Lu, Jun Huang, Qiang Liu, Gang Qi, Zhensong Cao
2021 Atmosphere  
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

Hun Choi, Gyeongyong Heo, Jihong Kim
2016 International Journal of Engineering Research and  
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

W. A. Wilbanks
1967 Psychonomic Science  
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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