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Single‐Phase To Three‐Phase Drive System Using Two Parallel Single‐Phase Rectifiers

Nazneen Choudhari, Nida Shaikh
2015 Zenodo  
Andrew gave the method of digital image restoration [3-5], A. K. Jain and put forwarded the partial difference equations and finite differences in image processing [6].  ...  Most modules in practical vision system depend, directly or indirectly, on the performance of an edge detector and digital image processing.  ...  Weighted average of input pixel and its immediate neighbours are used to calculate the output pixel brightness value called mask and the array of 3  3 mask convolution coefficient is given below. a b  ... 
doi:10.5281/zenodo.1471487 fatcat:kpbzesofe5avnje3c5p5ew6xdq

Image processing of concentrated and scattered objects

Vladimir Alekseev, Denis Lakomov, Artem Shishkin, Ghassan Al Maamari
2019 Business Informatics  
The main distinguishing feature of the algorithm is the use of convolution of the image in four directions, as well as the tracing procedure.  ...  This article presents a description of information technology for recognition in the automated mode of objects in images. The basis of this technology is the algorithm of contour analysis of images.  ...  Additionally, sharply-defined and scattered objects monitoring systems may see a benefit of the algorithm by training new operators.  ... 
doi:10.17323/1998-0663.2019.4.49.59 fatcat:oetrb5gvtrhh7cj263ukessn5e

Image Segmentation Using Edge Detection Technique

K. Thamizhmaran
2021 Zenodo  
Interpretation of picture substance is one of the targets in PC vision explicitly in image processing. In this era, it has received much awareness of researches.  ...  In image interpretation the partition of image into object and background is a severe step. Segmentation isolates an image into its segment areas or articles.  ...  because they rely only on coefficients of 0, 1 and 2.  ... 
doi:10.5281/zenodo.4738452 fatcat:q73wxrk4fbcrhmlskhfyhehcvu

Multi-Vector Color-Image Filters

Todd A. Ell
2007 2007 IEEE International Conference on Image Processing  
The linear filtering of color images using hypercomplex convolution and Fourier transforms provides a holistic treatment of color by representing pixels as 3-space vector quantities within the quaternion  ...  This multi-vector representation has similar convolution and Fourier transforms as the quaternion based filters, but provides an avenue for multi-spectral images composed of more than three channels.  ...  The right-hand convolution follows a similar formula. Note the use of both the forward and reverse left transform on the mask.  ... 
doi:10.1109/icip.2007.4379811 dblp:conf/icip/Ell07 fatcat:n23o7vg3jjcvtijdgmaydcfd3u

Lane detection system for day vision using altera DE2

Amjad J. Humaidi, Mohammed Abdulraheem Fadhel, Ahmed R. Ajel
2019 TELKOMNIKA (Telecommunication Computing Electronics and Control)  
The effect of manually changing the threshold level on image enhancement has been examined. The results showed that raising threshold level would better enhance the image.  ...  The lane detection is performed by firstly capturing the image from a video camera and converted to gray scale.  ...  Robinson Edge Detection Technique The masks of Robinson edge detection masks are called compass masks since they are defined by rotating a single mask to eight main compass orientations: north, west, south  ... 
doi:10.12928/telkomnika.v17i1.10071 fatcat:qgw2e435qjhhhgk6rbmwrvybcq


2013 American Journal of Applied Sciences  
The main idea of this approach is to model a color image as a magnetic cube which has the same height and width as the image.  ...  However, these edge detectors may miss some parts of the edges. In the aim, to deal with this problem, a new approach is proposed.  ...  Known that the computation of the proposed approach is based on the convolution of the image and the filter coefficients in 3 spaces, we conclude that the computation complexity of this approach is equal  ... 
doi:10.3844/ajassp.2013.280.293 fatcat:p6smy2vkfzebdhjdgilkd5ixpi

Information Entropy Initialized Concrete Autoencoder for Optimal Sensor Placement and Reconstruction of Geophysical Fields [article]

Nikita Turko, Alexander Lobashev, Konstantin Ushakov, Maxim Kaurkin, Rashit Ibrayev
2022 arXiv   pre-print
We demonstrate our method on the two examples: (a) temperature and (b) salinity fields around the Barents Sea and the Svalbard group of islands.  ...  To calculate the entropy, a new ordering of a two-dimensional data array (spiral ordering) is proposed, which makes it possible to obtain the entropy of a physical field simultaneously for several spatial  ...  and initial experiments with the concrete autoencoder by A.  ... 
arXiv:2206.13968v1 fatcat:iznkfmm7engu7me6nig6vrynqu

Use of Computer Vision to Detect Tangles in Tangled Objects [article]

Paritosh Parmar
2014 arXiv   pre-print
TANGLED-100 dataset was introduced, which consists of images of tangled linear deformable objects. Method discussed in here was tested on the TANGLED-100 dataset.  ...  This paper proposes a computer vision based method for analyzing visual data acquired from camera for perceiving the overlap of wires, ropes, hoses i.e. detecting tangles.  ...  Edge detection is accomplished by convolving the pre-processed image with the eight Robinson compass masks. Robinson compass masks have 0, 1, and 2 as their coefficients [4] .  ... 
arXiv:1405.4802v1 fatcat:j66ezlyh5rc7tbfbmn2zuylceq

Comprehensive analysis of edge detection in color image processing

Konstantinos N. Plataniotis
1999 Optical Engineering: The Journal of SPIE  
The effect of distance measures on the performance of different color edge detectors is studied by employing distance measures other than the Euclidean norm.  ...  Both quantitative and subjective tests are performed in evaluating the performance of the edge detectors, and a detailed comparison is presented.  ...  This happens because there is a smoothing ͑low pass͒ effect associated with the convolution mask.  ... 
doi:10.1117/1.602105 fatcat:lspdaaoa3zfcxn6hlqprbn5vkq

Deep Learning for Automated Analysis of Cellular and Extracellular Components of the Foreign Body Response in Multiphoton Microscopy Images

Mattia Sarti, Maria Parlani, Luis Diaz-Gomez, Antonios G. Mikos, Pietro Cerveri, Stefano Casarin, Eleonora Dondossola
2022 Frontiers in Bioengineering and Biotechnology  
We developed an integrated computational pipeline based on an innovative and versatile variant of the U-Net neural network to segment and quantify cellular and extracellular structures of interest, which  ...  This software for automatically detecting the elements of the FBR shows promise to unravel the complexity of this pathophysiological process.  ...  Collagen/Scaffold Orientation Detection We detected the orientation of the structures of interest with an angular resolution of 1 °by extending compass mask technique (Robinson, 1977) to any arbitrary  ... 
doi:10.3389/fbioe.2021.797555 pmid:35145962 pmcid:PMC8822221 fatcat:a4dkfbrlebbyln2pmirmuls2am

An Efficient Lossless Medical Image Compression Technique for Telemedicine Applications

Shivaputra, Sheshadri H.S, Lokesha V
2015 Computer Applications An International Journal  
If your compassion does not include yourself, it is incomplete" -Gautama Buddha Telemedicine; use of telecommunication and information technological services, which permits the communication between the  ...  This leverages exacting coercions on the restoration error.  ...  Ambedkar Institute of Technology, Bengaluru for their assistance, suggestions, insight and valuable discussion over the course of this research work.  ... 
doi:10.5121/caij.2015.2106 fatcat:mzlirpx7trfapnyhrrqq5ce5eq

Confusion in differential piston measurement with the pyramid wavefront sensor

A. Bertrou-Cantou, E. Gendron, G. Rousset, V. Deo, F. Ferreira, A. Sevin, F. Vidal
2021 Astronomy and Astrophysics  
We derived sensitivity loss and modal cross-talk strength coefficients around static post-AO residual phases using the COMPASS end-to-end AO simulation software.  ...  The pyramid was proven to be a highly sensitive and versatile wave-front sensor (WFS) and has been selected to be installed on the single conjugate adaptive optics (AO) systems of the extremely large telescope  ...  This research is performed in the frame of the development of MICADO, first light instrument of the ELT (ESO), with the support of ESO, INSU/CNRS and Observatoire de Paris.  ... 
doi:10.1051/0004-6361/202141632 fatcat:z3om2liguvf4blbftzll44w2qe

WayFAST: Traversability Predictive Navigation for Field Robots [article]

Mateus Valverde Gasparino, Arun Narenthiran Sivakumar, Yixiao Liu, Andres Eduardo Baquero Velasquez, Vitor Akihiro Hisano Higuti, John Rogers, Huy Tran, Girish Chowdhary
2022 arXiv   pre-print
We demonstrate the effectiveness of WayFAST through extensive field testing in varying environments, ranging from sandy dry beaches to forest canopies and snow covered grass fields.  ...  Furthermore, we show that our training pipeline based on online traction estimates is more data-efficient than other heuristic-based methods.  ...  It is important to note that LiDAR has a 270 degree field-of-view, while WayFAST only uses a camera with a 69 degree field-of-view, allowing the LiDAR baseline to provide a larger set of path solutions  ... 
arXiv:2203.12071v1 fatcat:r7ctdhgktbbsdfyfqpxv7kcq4y

Graphics hardware accelerated multiresolution time-domain technique: development, evaluation and applications

G.S. Baron, E. Fiume, C.D. Sarris
2008 IET Microwaves, Antennas & Propagation  
Recently, the use of graphics processing units as a means of achieving the hardware acceleration of the finite-difference time-domain (FDTD) technique has attracted significant interest in the computational  ...  Alternatively, the authors show how the implementation of the multiresolution time-domain technique in a graphics processing unit can optimally utilise the memory resources of the latter and achieve unprecedented  ...  Given the canonical spatial indexing of field and material property meshes, the second and third term of (3) are discrete spatial convolutions weighted by connection coefficients, a(l).  ... 
doi:10.1049/iet-map:20070118 fatcat:wehrknniljazhnw23mwk3uw7xm

Comparison of Edge Detection Algorithms for Automated Radiographic Measurement of the Carrying Angle
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Mason AlNouri, Jasim Al Saei, Manaf Younis, Fadi Bouri, Mohamed Ali Al Habash, Mohammed Hamza Shah, Mohammed Al Dosari
2015 Journal of Biomedical Engineering and Medical Imaging  
Automated radiographic measurement of the carrying angle of the elbow is a feasible and reliable process.  ...  There is no consensus on which is the best one for use in skeletal radiographs.  ...  ACKNOWLEDGEMENTS This study was supported by the Medical Research Center at Hamad Medical Corporation. We thank Mr Yahya AlNouri for funding this project.  ... 
doi:10.14738/jbemi.26.1753 fatcat:h2se74eeffbnzksd2a6wrfivh4
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