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Towards intelligent image retrieval

John P. Eakins
2002 Pattern Recognition  
Eakins [19] has taken this distinction further, identifying three distinct levels of image query, each of which can be further subdivided: E Level 1, retrieval by primitive features such as colour, texture  ... 
doi:10.1016/s0031-3203(01)00038-3 fatcat:vgxce4mdxve6biancde3k4q4ae

Retrieval of Still Images by Content [chapter]

John P. Eakins
2000 Lecture Notes in Computer Science  
np p=1 φ∈wp (φ − φ p ) 2 H D (φ) where n p is the number of peaks and φ p the direction of the pth peak in the density gradient histogram H D , and contrast n n 2 i j p(i, j) : |i − j| = n where p(i, j  ...  . , g n ), where g j = j i=1 h i and colour moments E n = 1 M M m=1 p mn , σ n = 1 M M m=1 (p mn − E n ) 2 and s n = 3 1 M M m=1 (p mn − E n ) 3 and representing the distribution of image pixels within  ... 
doi:10.1007/3-540-45368-7_6 fatcat:d6we2vyodfdkbgdcy2nk6mpt5e

Challenges of Image and Video Retrieval [chapter]

Michael S. Lew, Nicu Sebe, John P. Eakins
2002 Lecture Notes in Computer Science  
What use is the sum of human knowledge if nothing can be found? Although significant advances have been made in text searching, only preliminary work has been done in finding images and videos in large digital collections. In fact, if we examine the most frequently used image and video retrieval systems (i.e. we find that they are typically oriented around text searches where manual annotation was already performed. Image and video retrieval is a young field which has its
more » ... gy rooted in artificial intelligence, digital signal processing, statistics, natural language understanding, databases, psychology, computer vision, and pattern recognition. However, none of these parental fields alone has been able to directly solve the retrieval problem. Indeed, image and video retrieval lies at the intersections and crossroads between the parental fields. It is these curious intersections which appear to be the most promising. What are the main challenges in image and video retrieval? We think the paramount challenge is bridging the semantic gap. By this we mean that low level features are easily measured and computed, but the starting point of the retrieval process is typically the high level query from a human. Translating or converting the question posed by a human to the low level features seen by the computer illustrates the problem in bridging the semantic gap. However, the semantic gap is not merely translating high level features to low level features. The essence of a semantic query is understanding the meaning behind the query. This can involve understanding both the intellectual and emotional sides of the human, not merely the distilled logical portion of the query but also the personal preferences and emotional subtones of the query and the preferential form of the results. In this proceedings, several papers [1][2][3][4][5][6][7][8] touch upon the semantic problem and give valuable insights into the current state of the art. Wang et al [1] propose the use of color-texture classification to generate a codebook which is used to segment images into regions. The content of a region is then characterize by its self-saliency which describes its perceptual importance. Bruijn and Lew [2] investigate multi-modal content-based browsing and searching methods for Peer2Peer retrieval systems. Their work targets the assumption
doi:10.1007/3-540-45479-9_1 fatcat:tq2btxvta5fchbkq4brug4qwqi

Practice and challenges in trademark image retrieval

Jan Schietse, John P. Eakins, Remco C. Veltkamp
2007 Proceedings of the 6th ACM international conference on Image and video retrieval - CIVR '07  
But with the exception of Alwis & Austin [9] and to a lesser extent Eakins et al. [7] , there have so far been few attempts to base image matching on multiple views of an image.  ...  The ARTISAN 1 system developed by Eakins et al. [7] is based on similar principles, though with the important difference that all segmentation and feature extraction is performed automatically.  ... 
doi:10.1145/1282280.1282355 dblp:conf/civr/SchietseEV07 fatcat:62ngiemq55gv7igb3xrgktve2e

VISAR 'cross-hairs': Simultaneous perpendicular line-imaging VISAR

John B R Winters, Simon N Bland, Samuel J P Stafford, David J Chapman, Daniel E Eakins
2014 Journal of Physics, Conference Series  
At the periscope P' the image is rotated and directed into the streak camera, without the need for dove prisms, as opposed to the periscope P, where the image is not rotated.  ... 
doi:10.1088/1742-6596/500/18/182044 fatcat:ebaknryj7nhsjjqqsh3mpcs3hi

ARTISAN: a shape retrieval system based on boundary family indexing

John P. Eakins, Kevin Shields, Jago Boardman, Ishwar K. Sethi, Ramesh C. Jain
1996 Storage and Retrieval for Still Image and Video Databases IV  
The algorithm used for comparing query and stored image families in order has been described in detail by Eakins 27 .  ...  Circularity = 4πA / P 2 . 2. Aspect Ratio = (p 1 + p 2 ) / C. 3. Discontinuity Angle Irregularity = √(( Σθ i -θ i+1  ) / (2π (n -2))).  ... 
doi:10.1117/12.234792 dblp:conf/spieSR/EakinsSB96 fatcat:wm4xllhxvnai5paxu5vd4l2tya

Ultra-high-speed indirect x-ray imaging system with versatile spatiotemporal sampling capabilities

Emilio M. Escauriza, Margie P. Olbinado, Michael E. Rutherford, David J. Chapman, John C. Z. Jonsson, Alexander Rack, Daniel E. Eakins
2018 Applied Optics  
A new generation of cameras has made ultra highspeed X-ray imaging at synchrotron light sources a reality, revealing never-before-seen details of sub-surface transient phenomena. We introduce a versatile indirect imaging system capable of capturing -for the first time -hundreds of sequential X-ray pulses in 16bunch mode at the European Synchrotron Radiation Facility, recording at 5.68 Mfps over dozens of microseconds, with an effective exposure of 100 ps. The versatile multiplex camera
more » ... ion of the system allows for various arrangements, including different scintillator configurations, and simultaneous imaging with different resolutions and regions of interest. Image results from a gas gun impact experiment, in which an additive manufactured aluminium lattice was dynamically compressed, is presented as a demonstration of the system's capabilities.
doi:10.1364/ao.57.005004 pmid:30117959 fatcat:d7lu2fgugbdftiwj2ipkobyehq

Comparison of the effectiveness of alternative feature sets in shape retrieval of multicomponent images

John P. Eakins, Jonathan D. Edwards, K. Jonathan Riley, Paul L. Rosin, Minerva M. Yeung, Chung-Sheng Li, Rainer W. Lienhart
2001 Storage and Retrieval for Media Databases 2001  
Examples include the line-angle-line triplet features devised by Eakins 7 , and the longer segment sequences used by Mehrotra and Gary 8 .  ...  at least when P n or R n measures were used.  ... 
doi:10.1117/12.410929 dblp:conf/spieSR/EakinsERR01 fatcat:erqoer4mu5avxif22bolidrsba

Pharmacokinetics/pharmacodynamics of a β-lactam and β-lactamase inhibitor combination: a novel approach for aztreonam/avibactam

Renu Singh, Aryun Kim, M. Angela Tanudra, Jennifer J. Harris, Robert E. McLaughlin, Sara Patey, John P. O'Donnell, Patricia A. Bradford, Ann E. Eakin
2015 Journal of Antimicrobial Chemotherapy  
Objectives: The combination of aztreonam/avibactam has promising activity against MDR Gram-negative pathogens producing metallo-b-lactamases (MBLs), such as New Delhi MBL-1. Pharmacokinetic (PK)/pharmacodynamic (PD) understanding of this combination is critical for optimal clinical dose selection. This study focuses on the determination of an integrated PK/PD approach for aztreonam/avibactam across multiple clinical Enterobacteriaceae strains. Methods: Six clinical Enterobacteriaceae isolates
more » ... pressing MBLs and ESBLs were studied in an in vitro hollowfibre infection model (HFIM) using various dosing regimens simulating human-like PK for aztreonam/avibactam. The neutropenic murine thigh infection model was used for in vivo validation against two bacterial strains. Results: MIC values of aztreonam/avibactam for the isolates ranged from 0.125 to 8 mg/L. Using a constant infusion of avibactam at 4 mg/L, the aztreonam PK/PD index was observed as % fT .MIC . Studies performed in the presence of a fixed dose of aztreonam revealed that the efficacy of avibactam correlates best with percentage of time above a critical threshold concentration of 2 -2.5 mg/L. These conclusions translated well to the efficacy observed in the murine thigh model, demonstrating in vivo validation of the in vitro PK/PD target. Conclusions: PK/PD evaluations for aztreonam/avibactam in HFIM yielded a single target across strains with a wide MIC range. This integrated approach could be easily applied for forecasting clinically efficacious doses for b-lactam/b-lactamase inhibitor combinations.
doi:10.1093/jac/dkv132 pmid:26024868 fatcat:pgwsbav45nbbditgdpkatvdyey

Risk-sensitive planning for conserving coral reefs under rapid climate change

Hawthorne L. Beyer, Emma V. Kennedy, Maria Beger, Chaolun Allen Chen, Joshua E. Cinner, Emily S. Darling, C. Mark Eakin, Ruth D. Gates, Scott F. Heron, Nancy Knowlton, David O. Obura, Stephen R. Palumbi (+9 others)
2018 Conservation Letters  
ecosystems are threatened by local (e.g. declining water quality, overfishing [Riegl, Bruckner, Coles, Renaud, & Dodge, 2009] ) and global stressors (e.g. ocean warming [Heron, Maynard, van Hooidonk, & Eakin  ... 
doi:10.1111/conl.12587 fatcat:qj7o3ut3ang7lfisazbsddspum

Spatial and temporal patterns of mass bleaching of corals in the Anthropocene

Terry P. Hughes, Kristen D. Anderson, Sean R. Connolly, Scott F. Heron, James T. Kerry, Janice M. Lough, Andrew H. Baird, Julia K. Baum, Michael L. Berumen, Tom C. Bridge, Danielle C. Claar, C. Mark Eakin (+13 others)
2018 Science  
doi:10.1126/science.aan8048 pmid:29302011 fatcat:psvjl6zjzneapogwp76uxi5zku

Refugia under threat - mass bleaching of coral assemblages in high-latitude eastern Australia

Sun W Kim, Eugenia M Sampayo, Brigitte Sommer, Carrie A Sims, Maria del C. Gómez-Cabrera, Steve J Dalton, Maria Beger, Hamish A Malcolm, Renata Ferrari, Nicola Fraser, Will F Figueira, Stephen D A Smith (+11 others)
2019 Zenodo  
with latitude 389 ( Fig. 5a ; mean r = 0.56, R 2 = 0.32, p < 0.01).  ...  mean r = -0.54, R 2 386 = 0.29, p < 0.01), without a corresponding change in relative abundance (Fig. 5a) .  ... 
doi:10.5281/zenodo.3822035 fatcat:y7hrhjk4ufhkbpl4jaxxizgiie

Refugia under threat: Mass bleaching of coral assemblages in high‐latitude eastern Australia

Sun W. Kim, Eugenia M. Sampayo, Brigitte Sommer, Carrie A. Sims, Maria del C. Gómez‐Cabrera, Steve J. Dalton, Maria Beger, Hamish A. Malcolm, Renata Ferrari, Nicola Fraser, Will F. Figueira, Stephen D. A. Smith (+11 others)
2019 Global Change Biology  
5a ; mean r = 0.23, R 2 = 0.06, p = 0.12).  ...  ( Fig. 5a ; mean r = 0.56, R 2 = 0.32, p < 0.01).  ... 
doi:10.1111/gcb.14772 pmid:31472029 fatcat:q4mptaacfvh7bcpdksztu4rxou

The User Interface & Content-Based Image Retrieval Systems

Colin C. Venters, John P. Eakins, Richard J. Hartley
1997 unpublished
In contrast, Eakins [35] in his review of the prospects and problems of pictorial information systems believes that the effectiveness of image-based retrieval systems is being hampered by a number of  ... 
doi:10.14236/ewic/ir1997.11 fatcat:3t3pd7lowbch5ao2bbbbx2ot7q

Global warming and recurrent mass bleaching of corals

Terry P. Hughes, James T. Kerry, Mariana Álvarez-Noriega, Jorge G. Álvarez-Romero, Kristen D. Anderson, Andrew H. Baird, Russell C. Babcock, Maria Beger, David R. Bellwood, Ray Berkelmans, Tom C. Bridge, Ian R. Butler (+34 others)
2017 Nature  
K., Berkelmans, R. & Eakin, C. M. in Ecological Studies: Analysis and 224 Synthesis (M. J. H. van Oppen & J. M. Lough eds.) 21-39 (2009). 225 7 . 7 Eakin, C. M. et al.  ...  P. et al. Climate change, human impacts, and the resilience of coral reefs. 220 Science 301, 929-933 (2003). 5 . 5 Glynn, P. W.  ... 
doi:10.1038/nature21707 pmid:28300113 fatcat:vlm5e4wz5ndd5ddyd2yizhydhy
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