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A pipeline architecture for computing the Euler number of a binary image

Arijit Bishnu, Bhargab B. Bhattacharya, Malay K. Kundu, C.A. Murthy, Tinku Acharya
2005 Journal of systems architecture  
Euler number of a binary image is a fundamental topological feature that remains invariant under translation, rotation, scaling, and rubber-sheet transformation of the image.  ...  The architecture uses O(N) 2-input gates and requires O(N log N) time to compute the Euler number of an N · N image.  ...  Souvik Maity of the Sikkim Manipal Institute of Technology, for their help in implementing the VLSI architecture. The authors wish to thank Dr. Mitsuo Motoki for helpful discussions.  ... 
doi:10.1016/j.sysarc.2004.12.001 fatcat:n2g6lvm2uzbvbhtwp2bgh4lzi4

Real-time FPGA architecture of modified Stable Euler-Number algorithm for image binarization

Naeem Abbasi, Jacques Athow, Aishy Amer
2009 2009 16th IEEE International Conference on Image Processing (ICIP)  
This technical report proposes a modified Stable Euler-Number based algorithm for image binarization and its real-time hardware implementation in a Field Programmable Gate Array with a pipelined architecture  ...  The Stable Euler-Number based image binarization has been shown to give excellent visual results for video frames containing high amount of image noise.  ...  The number of calculations required for the computation of Euler number increase in proportion to the size of the video frame as the Euler number is a spatial property of an image.  ... 
doi:10.1109/icip.2009.5413985 dblp:conf/icip/AbbasiAA09 fatcat:irbgkwrr4zc67fswui2bytf2ju

Alternative Way to Compute the Euler Number of a Binary Image

J. H. Sossa-Azuela, E. B. Cuevas-Jiménez, D. Zaldivar-Navarro
2011 Journal of Applied Research and Technology  
In this paper an alternative way to compute the (E) Euler number of a binary image via information about its pixels ispresented. The  ...  We kindly thank the reviewers for their comments which contributed to the improvement of this paper.  ...  Acknowledgements The authors thank SIP-IPN and CONACYT for the economical support under grants number 20111016 and 155014.  ... 
doi:10.22201/icat.16656423.2011.9.03.428 fatcat:5pxxlzndnfedddi64ngve2nmza

Computing the Euler Number of a Binary Image Based on a Vertex Codification

J.H. Sossa-Azuela, R. Santiago-Montero, M. Pérez-Cisneros, E. Rubio-Espino
2013 Journal of Applied Research and Technology  
We describe a method to compute the Euler number of a binary digital image based on a codification of contour pixels of the image's shapes.  ...  The method is supported through an experimental set which analyzes some digital images and their outcome to demonstrate the applicability of the procedure.  ...  Rubio thanks SIP-IPN for the support under grant 20131505. We all thank the reviewers for their comments on the improvement of this paper.  ... 
doi:10.1016/s1665-6423(13)71546-3 fatcat:mjmaalar45hlpjjjh4i2mumjzy

Computation of the Euler Number of a Binary Image Composed of Hexagonal Cells

J. H. Sossa-Azuela, E. V. Cuevas-Jiménez, D. Zaldivar-Navarro
2010 Journal of Applied Research and Technology  
Most of the proposals to compute the Euler number of a binary image have been designed to work with images composed of squared cells.  ...  In this paper, a new way to compute the Euler number (E) of a binary image composed of hexagonal cells is presented.  ...  Acknowledgments The authors wish to thank SIP-IPN for the economical support under grant number 20100468.  ... 
doi:10.22201/icat.16656423.2010.8.03.456 fatcat:xaoednu5jreazaikncyvsm2tze

RockFlow: Fast Generation of Synthetic Source Rock Images Using Generative Flow Models

Timothy I. Anderson, Kelly M. Guan, Bolivia Vega, Saman A. Aryana, Anthony R. Kovscek
2020 Energies  
The results show that our method underestimates the porosity and surface area on the binary baseline datasets but is able to generate realistic grayscale image volumes for shales.  ...  With improved binary data preprocessing, we believe that our model is capable of generating synthetic porous media volumes for a very broad class of rocks from shale to carbonates to sandstone.  ...  Ross, Laura Frouté, Manju Murugesu, and Yulman Perez-Claro for many helpful discussions. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/en13246571 fatcat:sih3xomv5vfltozzcdgvwjgige

Journal of Real-Time Image Processing: fourth issue of volume 8

Nasser Kehtarnavaz, Matthias F. Carlsohn
2013 Journal of Real-Time Image Processing  
Based on graph theory, the Euler number of a binary image is calculated by counting the occurrences of four patterns for processing foreground pixels in a first scan of a connected-component labeling process  ...  and Euler number computation.  ... 
doi:10.1007/s11554-013-0377-7 fatcat:4jvvcmhdt5b4revsgonzv7thba

Page 140 of Journal of Research and Practice in Information Technology Vol. 24, Issue 4 [page]

1992 Journal of Research and Practice in Information Technology  
The Euler number of a binary-valued image is the number of components minus the number of holes (back- ground) in that image.  ...  A detailed review of characteristics of mesh- connected and Pyrmidal computers for seven computer  ... 

CortexODE: Learning Cortical Surface Reconstruction by Neural ODEs [article]

Qiang Ma, Liu Li, Emma C. Robinson, Bernhard Kainz, Daniel Rueckert, Amir Alansary
2022 arXiv   pre-print
This provides theoretical guarantees for the prevention of self-intersections.  ...  The pipeline utilizes a 3D U-Net to predict a white matter segmentation from brain Magnetic Resonance Imaging (MRI) scans, and further generates a signed distance function that represents an initial surface  ...  A binary mask is defined by the boundary and the initial points are acquired by applying a binary dilation. After topology correction, the values of the voxels outside the boundary are set to α.  ... 
arXiv:2202.08329v1 fatcat:aadcnu4kxzfshfsitugcopvta4

Real-Time System for High-Image Resolution Disparity Estimation

Javier Diaz, Eduardo Ros, Richard Carrillo, Alberto Prieto
2007 IEEE Transactions on Image Processing  
The architecture exploits the parallel computing resources of FPGA devices to achieve a computation speed of 65 megapixels per second.  ...  For this purpose, we have designed a fine-grain pipeline structure that can be arranged with a customized frame-grabber module to process 52 frames per second at a resolution of 1280 960 pixels.  ...  ACKNOWLEDGMENT The authors would like to thank S. Sabatini and F. Solari for their support in the stereo model and A. Tate for her revision of our English text. A. L. Bertozzi and A.  ... 
doi:10.1109/tip.2006.884931 pmid:17283786 fatcat:pjlmrhx7bbhnvhjyd3lpiy6hmy

Journal of Real-Time Image Processing: fourth issue of volume 13

Matthias F. Carlsohn, Nasser Kehtarnavaz
2017 Journal of Real-Time Image Processing  
algorithms for labeling connected components in a binary image and computing the Euler number of the image.  ...  The third paper by He et al. on ''A combinational algorithm for connected-component labeling and Euler number computing'' combines two processing tasks that are usually executed independently by different  ... 
doi:10.1007/s11554-017-0731-2 fatcat:smv4suivtrd2tjqh2eaewuavzq

Towards Eating Habits Discovery in Egocentric Photo-streams

Alina Matei, Andreea Glavan, Petia Radeva, Estefania Talavera
2021 IEEE Access  
Within this framework, we present a simple, but robust and fast novel classification pipeline that outperforms the state-of-the-art on food-related image classification with a weighted accuracy and F-score  ...  To do so, we rely on Dynamic-Time-Warping for the evaluation of similarity among the collected days.  ...  ACKNOWLEDGMENT The founders had no role in the study design, data collection, analysis, and preparation of the manuscript.  ... 
doi:10.1109/access.2021.3053175 fatcat:lcmklsslqbaodmo2xdfv6xziwy

Non-stationary Representation for Continuity aware Head Pose Estimation via Deep Neural Decision Trees

Jiang Wang, Farhan Ullah, Ying Cai, Jing Li
2019 IEEE Access  
The problem of image-based head pose estimation attracts intensive attention due to a large number of applications such as face analysis and attention modeling.  ...  Second, we apply the Fully Connected (FC) layer on the learned features to extract branch weight for each Euler angle and the representative values for each bin.  ...  For both Euler angle, miss classification rate increases as a function of the pose.  ... 
doi:10.1109/access.2019.2959584 fatcat:vu34fyjfufdovgeidklnyd6rzu

Eating Habits Discovery in Egocentric Photo-streams [article]

Estefania Talavera, Andreea Glavan, Alina Matei, Petia Radeva
2020 arXiv   pre-print
Within this framework, we present a simple, but robust and fast novel classification pipeline that outperforms the state-of-the-art on food-related image classification with a weighted accuracy and F-score  ...  To do so, we rely on Dynamic-Time-Warping for the evaluation of similarity among the collected days.  ...  The founders had no role in the study design, data collection, analysis, and preparation of the manuscript.  ... 
arXiv:2009.07646v1 fatcat:zbe5whjbhzcorfx4muffkqbl5e

Euler characteristic surfaces

Gabriele Beltramo, Primoz Skraba, Rayna Andreeva, Rik Sarkar, Ylenia Giarratano, Miguel O. Bernabeu
2021 Foundations of Data Science  
We show the usefulness of the techniques using generated examples as well as a real world dataset of detecting diabetic retinopathy in retinal images.</p>  ...  <p style='text-indent:20px;'>In this paper, we investigate the use of the Euler characteristic for the topological data analysis, particularly over higher dimensional parameter spaces.  ...  The authors would like to thank the reviewers for their helpful comments which greatly improved this paper.  ... 
doi:10.3934/fods.2021027 fatcat:cdgxcp7pw5fgtl2eeaypetgtgy
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