scholarly journals Scatter reduction for grid-less mammography using the convolution-based image post-processing technique

2017 ◽  
Author(s):  
Elena Marimón ◽  
Hammadi Nait-Charif ◽  
Asmar Khan ◽  
Philip A. Marsden ◽  
Oliver Diaz
Keyword(s):  
Processing Technique ◽  
Post Processing ◽  
Scatter Reduction

scholarly journals A post-processing technique for stabilizing the discontinuous pressure projection operator in marginally-resolved incompressible inviscid flow

2016 ◽  
Vol 139 ◽  
pp. 120-129 ◽  
Author(s):  
Sumedh M. Joshi ◽  
Peter J. Diamessis ◽  
Derek T. Steinmoeller ◽  
Marek Stastna ◽  
Greg N. Thomsen
Keyword(s):  
Projection Operator ◽  
Inviscid Flow ◽  
Processing Technique ◽  
Post Processing ◽  
Pressure Projection ◽  
Discontinuous Pressure

scholarly journals Video capture and post-processing technique for approximating 3D projectile trajectory

2015 ◽  
Vol 8 (3-4) ◽  
pp. 124-129 ◽  
Author(s):  
Chase M. Pfeifer ◽  
Judith M. Burnfield ◽  
Guilherme M. Cesar ◽  
Max H. Twedt ◽  
Jeff A. Hawks
Keyword(s):  
Processing Technique ◽  
Video Capture ◽  
Post Processing

scholarly journals ScoreNet: A neural network-based post-processing model for identifying epileptic seizure onset and offset in EEGs

2020 ◽  
Author(s):  
Poomipat Boonyakitanont ◽  
Apiwat Lek-uthai ◽  
Jitkomut Songsiri
Keyword(s):  
Neural Network ◽  
Epileptic Seizure ◽  
False Positive Rate ◽  
Imbalanced Data ◽  
Detection Algorithm ◽  
Processing Technique ◽  
Post Processing ◽  
Scalp Eeg ◽  
Positive Rate ◽  
Eeg Recordings

AbstractThis article aims to design an automatic detection algorithm of epileptic seizure onsets and offsets in scalp EEGs. A proposed scheme consists of two sequential steps: the detection of seizure episodes, and the determination of seizure onsets and offsets in long EEG recordings. We introduce a neural network-based model called ScoreNet as a post-processing technique to determine the seizure onsets and offsets in EEGs. A cost function called a log-dice loss that has an analogous meaning to F1 is proposed to handle an imbalanced data problem. In combination with several classifiers including random forest, CNN, and logistic regression, the ScoreNet is then verified on the CHB-MIT Scalp EEG database. As a result, in seizure detection, the ScoreNet can significantly improve F1 to 70.15% and can considerably reduce false positive rate per hour to 0.05 on average. In addition, we propose detection delay metric, an effective latency index as a summation of the exponential of delays, that includes undetected events into account. The index can provide a better insight into onset and offset detection than conventional time-based metrics.

scholarly journals Abdominal Digital Radiography with a Novel Post-Processing Technique: Phantom and Patient Studies

2020 ◽  
Vol 81 (4) ◽  
pp. 920
Author(s):  
Hyein Kang ◽  
Eun Sun Lee ◽  
Hyun Jeong Park ◽  
Byung Kwan Park ◽  
Jae Yong Park ◽  
...  
Keyword(s):  
Digital Radiography ◽  
Processing Technique ◽  
Post Processing ◽  
Patient Studies

scholarly journals Evaluation of solar irradiation estimates of the BRAMS and development of a statistical post-processing technique for Northern Brazil

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Francisco José Lopes de Lima ◽  
Rodrigo Santos Costa ◽  
André Rodrigues Gonçalves ◽  
Ana Paula Paes do Santos ◽  
Fernando Ramos Martins ◽  
...  
Keyword(s):  
Processing Technique ◽  
Solar Irradiation ◽  
Post Processing ◽  
Northern Brazil

Application of Fourier-Domain Post-Processing Technique for Ultrasonic Imaging with Matrix Phased Arrays in Advanced Manufacturing of Details and Machines

2018 ◽  
Vol 938 ◽  
pp. 81-88 ◽  
Author(s):  
Dmitry Dolmatov ◽  
Yana Salchak ◽  
Dmitriy Sednev ◽  
Roman Pinchuk
Keyword(s):  
Phased Arrays ◽  
Experimental Testing ◽  
Ultrasonic Imaging ◽  
High Sensitivity ◽  
Processing Technique ◽  
Post Processing ◽  
Real Component ◽  
Suggested Technique ◽  
Immersion Testing ◽  
Control Procedures

Quality of the components in the mechanical engineering is of the utmost importance. Most of quality control procedures can be provided by advanced quality assurance methods that enable visualization of inner structure of a component within all of the occurring defects. This paper suggests an innovative post-processing technique for Full-Matrix ultrasonic imaging with Matrix phased arrays in the case of immersion testing. Evaluation of the reliability was performed by simulation via CIVA software as well as by experimental testing of a real component with given defects. The obtained results of the research demonstrated high sensitivity and accuracy of the suggested technique.

Sign in / Sign up

Export Citation Format

Share Document