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Shearlet-based detection of flame fronts

Rafael Reisenhofer, Johannes Kiefer, Emily J. King
2016 Experiments in Fluids  
of flame fronts.  ...  Furthermore, we compare the performance of the newly proposed complex shearlet-based measure to well-established edge and ridge detection techniques such as the Canny edge detector, another shearlet-based  ...  A video of detected flame fronts is also hosted on the site.  ... 
doi:10.1007/s00348-016-2128-6 fatcat:a3eh2tnr7fbhdgd6i44m6c77xa

Shearlet-based edge detection: flame fronts and tidal flats

Emily J. King, Rafael Reisenhofer, Johannes Kiefer, Wang-Q Lim, Zhen Li, Georg Heygster, Andrew G. Tescher
2015 Applications of Digital Image Processing XXXVIII  
Quite often, the flame fronts are transient or weak and the images are noisy. The standard methods used in the field for the detection of flame fronts do not handle such data well.  ...  A novel method for edge and line detection which is in the spirit of phase congruency but is based on a complex shearlet transform will be presented.  ...  APPLICATIONS Flame front detection For the task of flame front detection, we demonstrate the capabilities of the complex shearlet-based edge measure by processing a noisy mock image designed to represent  ... 
doi:10.1117/12.2188652 fatcat:xnxtn7zp5jeofg7bel5kbb4glu

An automated fracture trace detection technique using the complex shearlet transform

Rahul Prabhakaran, Pierre-Olivier Bruna, Giovanni Bertotti, David Smeulders
2019 Solid Earth Discussions  
The method consists of ridge detection using the complex shearlet transform coupled with post-processing algorithms that threshold, skeletonize, and vectorize fracture traces.  ...  In this paper, an automated fracture trace detection technique is introduced.  ...  -Q., Li, Z., and Heygster, G.: Shearlet-based edge detection: flame fronts and tidal flats, Figure 1 . 1 (a). Isotropic elements capturing a discontinuity curve (b).  ... 
doi:10.5194/se-2019-104 fatcat:e2ofbxkm3jhstglrxkmc7rhaum

An automated fracture trace detection technique using the complex shearlet transform

Rahul Prabhakaran, Pierre-Olivier Bruna, Giovanni Bertotti, David Smeulders
2019 Solid Earth  
The method consists of ridge detection using the complex shearlet transform coupled with post-processing algorithms that threshold, skeletonize, and vectorize fracture traces.  ...  In this paper, an automated fracture trace detection technique is introduced.  ...  The complex shearlet measure first introduced by Reisenhofer (2014) and improved by King et al. (2015) was used for applications like coastline detection (King et al., 2015) , flame front detection  ... 
doi:10.5194/se-10-2137-2019 fatcat:ppw4wmrn2na5rmdusa5pgwj554

Front Matter: Volume 9599

2015 Applications of Digital Image Processing XXXVIII  
.  The last two digits indicate publication order within the volume using a Base 36 numbering system employing both numerals and letters.  ...  of SPIE Vol. 9599 959901-3  ...  filters for target tracking [9599-3] 9599 05 Shearlet-based edge detection: flame fronts and tidal flats [9599-4] 9599 06 The impact of privacy protection filters on gender recognition [9599-5]  ... 
doi:10.1117/12.2218079 fatcat:ud7olg3h55chxliki4z7rdufka

Edge, Ridge, and Blob Detection with Symmetric Molecules [article]

Rafael Reisenhofer, Emily J. King
2019 arXiv   pre-print
We present a novel approach to the detection and characterization of edges, ridges, and blobs in two-dimensional images which exploits the symmetry properties of directionally sensitive analyzing functions  ...  To further demonstrate the applicability, we show how the proposed ridge measure can be used to detect and characterize blood vessels in digital retinal images and how the proposed blob measure can be  ...  Labate for sharing the Matlab implementation of his shearlet-based edge detector. R. Reisenhofer acknowledges financial support from the Austrian Science Fund (FWF) under grant number M 2528.  ... 
arXiv:1901.09723v2 fatcat:tzp6gg2vgrbndhzzejwjtdxgxi

Front Matter: Volume 9522

2015 Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II  
The last two digits indicate publication order within the volume using a Base 36 numbering system employing both numerals and letters.  ...  Proc. of SPIE Vol. 9522 952201-2 Downloaded From: https://www.spiedigitallibrary.org/conference-proceedings-of-spie on 7/21/2018 Terms of Use: https://www.spiedigitallibrary.org/terms-of-use  ...  splitting mirror in holographic system [9522-96] 9522 1K A background suppression algorithm for infrared image based on shearlet [9522-101] 9522 1L Development of optically immersed, near-room-temperature  ... 
doi:10.1117/12.2191523 fatcat:ka4iqom67vhibemkrzuz4sxeja

Temperature Measurement Method of Flame Image Fusion with Different Exposures

Liang Shan, Huiyun Huang, Bo Hong, Jun Zhao, Daodang Wang, Ming Kong
2020 Energies  
The approach was first to acquire a group of flame radiation images during different exposures.  ...  Fixed exposure will lead to underexposure or overexposure of collected flame radiation images using CCD, which has a great influence on the temperature measuring accuracy.  ...  detection.  ... 
doi:10.3390/en13061487 fatcat:ajhxl5kxjfhntfciqph7plvb4y

Front Matter: Volume 10462

Yadong Jiang, Haimei Gong, Weibiao Chen, Jin Li
2018 AOPC 2017: Optical Sensing and Imaging Technology and Applications  
.  The last two digits indicate publication order within the volume using a Base 36 numbering system employing both numerals and letters. These two-number sets start with 00, 01, 02, 03,  ...  Utilization of CIDs allows articles to be fully citable as soon as they are published online, and connects the same identifier to all online and print versions of the publication.  ...  laser induced saturation [10462-70] 10462 1D Design of flame detection video camera system based on DSP [10462-72] 10462 1E A terahertz image super-resolution reconstruction algorithm based on the  ... 
doi:10.1117/12.2297053 fatcat:uj2n3awsarftxgtrrz2zgvfsky

A Survey on Machine Learning in COVID-19 Diagnosis

Xing Guo, Yu-Dong Zhang, Siyuan Lu, Zhihai Lu
2022 CMES - Computer Modeling in Engineering & Sciences  
First, the procedure of the diagnosis based on machine learning is introduced in detail, which includes medical data collection, image preprocessing, feature extraction, and image classification.  ...  For example, the highly unbalanced dataset, the difficulty of collecting labeled data, and the poor quality of the data.  ...  , fast Fourier using a relatively small dataset of CXR transform, wavelet, images. principal component analysis Ismael X-ray Wavelet transform, Shearlet transform outperformed at all. et al. [48] shearlet  ... 
doi:10.32604/cmes.2022.017679 fatcat:hre5zxtekvaevleu335faqilwu

2020 Index IEEE Transactions on Instrumentation and Measurement Vol. 69

2020 IEEE Transactions on Instrumentation and Measurement  
., Influence of Received Signal Strength on Prediction of Cluster Head and Number of Rounds; TIM June 2020 3739-3749 Hendeby, G., see Kasebzadeh, P., TIM Aug. 2020 5862-5874 Heng, Y., see Xue, M.,  ...  Real-Time Vision-Based System of Fault Detection for Freight Trains. Robust Incipient Fault Detection of Complex Systems Using Data Fusion.  ...  ., +, TIM June 2020 3191-3197 Oscillator-Less Direct-Digital Front-End Realizing Ratiometric Linearization Schemes for TMR-Based Angle Sensor.  ... 
doi:10.1109/tim.2020.3042348 fatcat:a5f4fsqs45fbbetre6zwsg3dly

Light Field Image Processing: An Overview

Gaochang Wu, Belen Masia, Adrian Jarabo, Yuchen Zhang, Liangyong Wang, Qionghai Dai, Tianyou Chai, Yebin Liu
2017 IEEE Journal on Selected Topics in Signal Processing  
On the other hand, the high-dimensionality of light fields also brings up new challenges in terms of data capture, data compression, content editing and display.  ...  for light field display, and computer vision applications of light field data.  ...  A back panel displays the different images of the light field, while a front layer redirects light rays appropriately to different positions in front of the screen.  ... 
doi:10.1109/jstsp.2017.2747126 fatcat:rvsfzvdxbbf4zesqdkaj3cseza

A design methodology for 2D sparse NDE arrays using an efficient implementation of refracted-ray TFM

Jerzy Dziewierz, Timothy Lardner, Anthony Gachagan
2013 2013 IEEE International Ultrasonics Symposium (IUS)  
One of these technologies takes advantage of the acoustic radiation forces associated with ultrasound standing wave fields to spatially pattern cells within collagen-based hydrogels.  ...  Statement of Contribution/Methods To address these challenges, we are developing ultrasound-based technologies to spatially organize cells and extracellular matrix proteins within tissue-engineered constructs  ...  In our earlier work, the performance of the shearlet thresholding approach has been evaluated on ultrasound images. Shearlet based thresholding denoising method preserved the edges perfectly.  ... 
doi:10.1109/ultsym.2013.0035 fatcat:th5znfh7y5bklfdbmhb4u6iq2i