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SFAST: A NEW ROBUST REGRESSION BASED COMBINED EDGES AND CORNER DETECTION

Muthukrishnan. R
2017 International Journal of Advanced Research in Computer Science  
The main feature of this proposed method is to use the edge points and their accumulated information for corner detection, for fast and more accurate results.  ...  The experimental results show that the proposed SFAST algorithm is fast, reliable and can be used in environments with noise.  ...  The processing time for detection of edges and curve extracting in images with and without noise is summarized in Table 4 .1.  ... 
doi:10.26483/ijarcs.v8i7.4238 fatcat:wcclg6vkjfd5xfet6kwq4woshy

On the evaluation of probabilistic thunderstorm forecasts and the automated generation of thunderstorm threat areas during Environment Canada Pan Am Science Showcase

Dominique Brunet, David Sills, Norbert Driedger
2019 Weather and forecasting  
A unique contribution of this paper is a novel verification methodology for the fair comparison between continuous and categorical probabilistic forecasts, a methodology that could be used for other experiments  ...  This paper first develops a rigorous verification methodology for the intercomparison of continuous as well as categorical probabilistic thunderstorm forecasts.  ...  Finally, we thank Harold Brooks for an interesting discussion on the interpretation of the ROC curve, which inspired the discussion on the verification method in this paper. Between 2013 and 2016, D.  ... 
doi:10.1175/waf-d-19-0011.1 fatcat:y2y7yckasnaxxlfqkebaxoy364

Guidance performance analysis with in-flight radome error calibration

W. R. YUEH, C.-F. LIN
1985 Journal of Guidance Control and Dynamics  
It has the tendency of cutting the corners when Z goes through sharp spiking behavior. Figure 2b compares the actual radome slope in solid curve r with the estimated radome slope in broken curve Ff.  ...  SNesline, F.W. and Zarchan, P., “‘A New Look at Classical vs Modern Homing Missile Guidance,’’ Journal of Guidance and Con- trol, Jan.-Feb. 1981, pp. 78-85.  ... 
doi:10.2514/3.20039 fatcat:zsnhmg6wmrfztl46dhxf4zipa4

Image Matching from Handcrafted to Deep Features: A Survey

Jiayi Ma, Xingyu Jiang, Aoxiang Fan, Junjun Jiang, Junchi Yan
2020 International Journal of Computer Vision  
Finally, we conclude with the current status of image matching technologies and deliver insightful discussions and prospects for future works.  ...  matching methods with superior performance in accuracy, robustness and efficiency.  ...  As for curvature estimation, for each point of the smoothed curve, a significance response measure is needed for corner searching, i.e., curvature.  ... 
doi:10.1007/s11263-020-01359-2 fatcat:a2epfaolwjfm5mcrsmn7g6sd7m

The effect of non-uniform train speed distribution on rail corrugation growth in curves/corners

P.A. Meehan, R.D. Batten, P.A. Bellette
2016 Wear  
The effect of non-uniform train speed distribution on rail corrugation growth in curves/corners, Wear, http://dx.  ...  Constant train speed for consecutive train passes has been shown to accelerate corrugation growth while widening the probabilistic speed distribution can be shown to mitigate the phenomena.  ...  The authors are also very grateful for the support and leadership of John Powell and researchers from Queensland Rail, Rail Infrastructure Corporation and the Australian Rail Track Corporation.  ... 
doi:10.1016/j.wear.2016.05.009 fatcat:a7jxr33sbvdznddwxv3aw3ousy

Bayesian modeling of uncertainty in low-level vision

Richard Szeliski
1990 International Journal of Computer Vision  
The sensor model describes the behavior and noise characteristics of our measurement system. We develop a number of sensor models for both sparse and dense measurements.  ...  This article develops a Bayesian model for describing and manipulating the dense fields, such as depth maps, associated with low-level computer vision.  ...  I would would like to thank my thesis advisors, Geoffrey Hinton and Takeo Kanade, for their ideas, encouragement and guidance during my five year stay at Carnegie Mellon.  ... 
doi:10.1007/bf00126502 fatcat:44orizdzknfndmhz55loop2yey

Nowcast Guidance of Afternoon Convection Initiation for Taiwan

Hui-Ling Chang, Barbara G. Brown, Pao-Shin Chu, Yu-Chieng Liou, Wen-Ho Wang
2017 Weather and forecasting  
The primary objective is to design more useful forecast products with uncertainty regions of predicted thunderstorms to provide nowcast guidance of ACI for forecasters.  ...  When a spatial window of 5 km and a temporal window of 18 min are applied, the TANC displays moderate accuracy and satisfactory discrimination with an acceptable degree of overforecasting.  ...  The authors thank the Central Weather Bureau for providing the TANC dataset and computer resources, as well as the NCAR and NOAA/ MDL for technical support.  ... 
doi:10.1175/waf-d-16-0224.1 fatcat:kpec7nwt7bhkjmhpwnrh46t5gq

Navigating, Recognizing and Describing Urban Spaces With Vision and Lasers

Paul Newman, Gabe Sibley, Mike Smith, Mark Cummins, Alastair Harrison, Chris Mei, Ingmar Posner, Robbie Shade, Derik Schroeter, Liz Murphy, Winston Churchill, Dave Cole (+1 others)
2009 The international journal of robotics research  
We show how our choices of representation, inference methods and use of both topological and metric techniques naturally allow us to fuse maps built from multiple sessions with no need for manual frame  ...  We describe how running topological and metric mapping and pose estimation processes concurrently, using vision and laser ranging, has produced a full sixdegree-of-freedom outdoor navigation system.  ...  The authors would like to extend their thanks to Rohan Paul and Ian Baldwin for their cold wanderings collecting data around New College.  ... 
doi:10.1177/0278364909341483 fatcat:vsroxtpxkvcdlc6jclplgumxma

Approximations and Randomization to Boost CSP Techniques

Carla P. Gomes, David B. Shmoys
2004 Annals of Operations Research  
Our approach draws on recent results on approximation algorithms based on LP relaxations and randomized rounding techniques, with theoretical guarantees, as well on results that provide evidence that the  ...  We propose a complete randomized backtrack search method for combinatorial problems that tightly couples CSP propagation techniques with randomized LP-based approximations.  ...  Acknowledgments We thank the anonymous reviewers for their valuable comments and suggestions.  ... 
doi:10.1023/b:anor.0000032572.32788.da fatcat:vsv7gbx2h5fnpagac72if2h2iu

Two-state pattern-recognition handoffs for corner-turning situations

K.D. Wong, D.C. Cox
2001 IEEE Transactions on Vehicular Technology  
turning a corner.  ...  However, handoff algorithms with both a negligible number of unnecessary handoffs and a negligible decision delay can be realized by exploiting this information.  ...  ACKNOWLEDGMENT The authors are grateful to the anonymous reviewers for insightful suggestions that helped improve the clarity and presentation of the material in this paper.  ... 
doi:10.1109/25.923048 fatcat:7u53xx5c5zcfxoibuazrgml2mu

Adaptive elastic segmentation of brain MRI via shape-model-guided evolutionary programming

A. Pitiot, A.W. Toga, P.M. Thompson
2002 IEEE Transactions on Medical Imaging  
We propose a new hybrid strategy that combines a general elastic template matching approach and an evolutionary heuristic.  ...  Examples from simulated and real image data are discussed, with considerations of algorithmic efficiency.  ...  factor and the process would go on until the match reaches the new threshold.  ... 
doi:10.1109/tmi.2002.803124 pmid:12472264 fatcat:r7zyka247ra65ppwkpyos52fgm

Report of Committee III.2: Fatigue and fracture [chapter]

2015 Ships and Offshore Structures XIX  
COMMITTEE MANDATE Concern for crack initiation and growth under cyclic loading as well as unstable crack propagation and tearing in ship and offshore structures.  ...  Consideration is to be given to the suitability and uncertainty of physical models. The work shall be coordinated with that of Committee V.2.  ...  Fricke and Wernicke (2001) reported on the probabilistic considerations for the fatigue tests on the large web corners described in Wernicke (2001) .  ... 
doi:10.1201/b18898-7 fatcat:sg4knnkbvjeubol2z7cgb4bju4

The Evolution of Defense in Depth Approach: A Cross Sectorial Analysis

Lorenzo Chierici, Gian Luigi Fiorini, Stefano La Rovere, Paolo Vestrucci
2016 Open Journal of Safety Science and Technology  
for all types of technologies and industries.  ...  It deals with slowdown of the progression of an "attack" against a "target" by using multiple and independent levels of protection (or lines of defense), designed to compensate for the failure of one or  ...  with the upper-left corner because of a non-null intrinsic contribution of the probabilistic approach.  ... 
doi:10.4236/ojsst.2016.62004 fatcat:oav7fq5czfe67lbtsfrua6aqri

Spinal vertebrae localization and analysis on disproportionality in curvature using radiography—a comprehensive review

Joddat Fatima, Muhammad Usman Akram, Amina Jameel, Adeel Muzaffar Syed
2021 EURASIP Journal on Image and Video Processing  
The problem has been catered by different researchers using diverse hand-crafted features like Harris corner, template matching, active shape models, and Hough transform.  ...  Different architectures of CNN such as UNet, FCN, and ResNet have been used for segmentation and deformity analysis.  ...  Amina Jameel and M Usman Akram along with them my co-author Adeel M Syed in this paper. With their continuous support and guidance, we were able to complete this article.  ... 
doi:10.1186/s13640-021-00563-5 fatcat:khzxpnubxjdnto4zdcpbxqxvnu

Toward Improved Convection-Allowing Ensembles: Model Physics Sensitivities and Optimizing Probabilistic Guidance with Small Ensemble Membership

Craig S. Schwartz, John S. Kain, Steven J. Weiss, Ming Xue, David R. Bright, Fanyou Kong, Kevin W. Thomas, Jason J. Levit, Michael C. Coniglio, Matthew S. Wandishin
2010 Weather and forecasting  
Additionally, different approaches for generating probabilistic ensemble guidance were explored.  ...  Specifically, a "neighborhood" approach is described and shown to considerably enhance probabilistic forecasts for precipitation when combined with traditional techniques of producing ensemble probability  ...  This method applied a "neighborhood" concept to an ensemble and was found to produce more skillful probabilistic guidance, as measured by the FSS and ROC area, than traditional ensemblederived probabilistic  ... 
doi:10.1175/2009waf2222267.1 fatcat:j7vsiwirbzb4recgtqfu5csy7e
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