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column recogniton and defects/damage properties retrieval for rapid
RETRIEVAL FOR RAPID INFRASTRUCTURE ASSESSMENT AND. REHABILITATION USING ... It is a pleasure to collaborate with you in designing experiments, and ..... Table 4: Crack detection precision and recall for 100 images . .... Figure 30: Recognition of concrete columns in damaged structures .... .............................71.
[ ZHU_ZHENHU_201108_PHD.pdf - Read/Download File

Application of Computer Vision to Crack Detection of Concrete - IJET
and image processing techniques, automated inspection is expected to ... damage of monolithic construction. The crack ... linear structure in concrete bridge decks with the best ... assessment for concrete structure [4]. ... blurred textures [7].
[ 596-C010.pdf - Read/Download File

Monitoring dynamic structural tests using image deblurring techniques
Jul 10, 2013 ... on Damage Assessment of Structures (DAMAS 2013), Dublin, Ireland, ... photograph is used to capture a blurred image of the vibrating ..... The same setup is also suitable for monitoring of static properties of the bridge using.
[ DMJ McCarthy - DAMAS 2013..pdf - Read/Download File

3D CASE STUDIES OF MONITORING DYNAMIC STRUCTURAL
Jun 23, 2014 ... Structural testing may also be carried out to assess a structure's integrity following a potentially damaging event. ... motion within motion-blurred images, which are processed with a bespoke ... the presence of damage, but this information alone cannot ..... bridge structures using a computer vision method.
[ isprsarchives-XL-5-407-2014.pdf - Read/Download File

Full-Text PDF - MDPI.com
Oct 16, 2014 ... with the original gray-scale images, over 90% of the crack length is preserved in the last .... quantification method for measuring crack length and width is introduced; ... Recently, a laser scanning technique for damage ... detect cracks or other defects in the structure surface. In [7] ... detect cracks in bridges.
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Analysis of smart crack detection methodologies in various structures
using fuzzy logic, neural network, artificial ... cracked cantilever beam structure using six input parameters ... damage assessment in structures from changes in static .... bridge truss. .... with triangular type membership functions using an image.
[ article1380116984_Parhi and Choudhury.pdf - Read/Download File

Exploring Indirect Vehicle-Bridge Interaction for Bridge SHM
responses of vehicles passing over bridge structures. ... preliminary interaction response data with which to begin to assess the validity of this ... Multiresolution image classifier was used to analyze the preliminary data. ... using an indirect monitoring approach, damage ..... image, but blurred), while the other three carry the.
[ 734f52057a7111ccb4faa72853b0980db6af.pdf - Read/Download File

Exploring Indirect Vehicle-Bridge Interaction for - Jelena Kovačević
the vehicle-bridge interaction and used a numerical oscillator-beam ... preliminary interaction response data with which to begin to assess the ... Multiresolution image classifier was used to analyze the preliminary data. ... structural health damage identification is based on ..... but blurred), while the other three carry the.
[ 10_07_IABMAS_Bridges.pdf - Read/Download File

Comparison of Infrared Cameras for Concrete Bridge Deck - Flir
In this research project, three infrared cameras with different specifications ... classify damaged concrete areas into three categories: 1. ... the severity of subsurface defects in concrete structures as shown in Figure 1. .... With blurred images, post analysis becomes difficult. .... “Bridge Assessment Method Using Image.
[ comparison-of-infrared-cameras-for-bridge-deck-scanning-on-site-test.pdf - Read/Download File

download
for visual inspection and damage detection on civil structures. The quality of photos and videos taken by using such airborne vehicles is strongly influenced by numerous ... Key words: inspection, monitoring, UAV, image, blur, probability of detection. ... Quality Assessment of Unmanned Aerial Vehicle (UAV) Based Visual ...
[ MorgenthalHallermann2014_QualityAssessmentUnmannedAerialVehicleBasedVisualInspections.pdf - Read/Download File

Post-seismic infrastructure damage assessment using high
Post-seismic infrastructure damage assessment using high-resolution ... lished about the detection of damaged bridges in SAR images [6]. .... the left side, near- range of the bridge, the single-bounce reflection of the bridge and the superstructures are ... The triple-bouncing far-range of the bridge is weaker and blurred due.
[ 09EOGC_hres.pdf - Read/Download File

New image processing tools for structural dynamic monitoring - Core
Keywords: Dynamic monitoring, motion estimation, image processing, vibration measurement . Abstract. This paper presents an introduction to structural damage assessment using ... After measuring the bridge dynamic parameter on a small .... The assumptions of optical ideal conditions and ideal blur filter have been done ...
[ 12040199.pdf - Read/Download File

Composition-Preserving Deep Photo Aesthetics Assessment
scaling, or padding, which often damages image composi- tion, reduces .... tive spatial pooling layer can handle input images with dif- ferent sizes ... including blocking, ringing, mosaic patterns, blur, noise, ghosting .... convolutional structure . The last ..... face, the bird's head, and the bridge) but also learns where to position ...
[ Mai_Composition-Preserving_Deep_Photo_CVPR_2016_paper.pdf - Read/Download File

Blind Image Deconvolution by Automatic Gradient Activation
observation process of a blurred image y, can be modeled as a convolution between a .... prune detrimental structures using carefully designed regu- larizers .
[ Gong_Blind_Image_Deconvolution_CVPR_2016_paper.pdf - Read/Download File

Protocols for Image Processing based Underwater Inspection of
elements like bridge piers and pile wharves. Underwater inspection often ... 11th International Conference on Damage Assessment of Structures (DAMAS 2015) ... Extracting quantitative information from images using computational techniques .... a slow shutter speed) presents other problems, mainly a high degree of blur.
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Multi-Image Stitching and Scene Reconstruction for Evaluating
a reconstruction of the same view using images that were previously ... routine inspections, in-depth inspections, damage inspections, and special ... pipeline for dimensional analysis of bridge structures from an image. Kim et ... visually assess the defect evolution in a structure. ..... images may blur the overlapping regions.
[ 699.pdf - Read/Download File

Unmanned Aerial Systems (UAS) – Case Studies of - NDT.net
Sep 17, 2015 ... respectively a workflow of visual inspection based on aerial photos taken by remote ... Keywords: Unmanned aerial system (UAS), monitoring, damage detection, computer vision. 1. ... development and condition assessment over the life time of a structure. .... Motion blur in the images caused by an instable.
[ 169_hallermann_norman.pdf - Read/Download File

Crack Detection using a Texture Analysis-based Technique for
Special Issue: Electronic Journal of Structural Engineering 14(1) 2015. 41. 1. ... bridge inspectors to assess the condition ratings un- derneath ... from the image using a sliding window texture analysis-based technique. ..... the time 'window regions' with a blurred appearance .... crack detection methods for analysing damage.
[ 2015-1-4.pdf - Read/Download File

Image-based Retrieval of Concrete Crack Properties
niques. Method Detection and quantification of cracks in concrete bridges pose various challenges. ... This paper discusses various techniques for image enhancement using point ... used as a tool for post-earthquake damage evaluation purposes. ... Ontario Structure Inspection Manual (OSIM), crack .... increases blurring.
[ Image-based_Retrieval_of_Concrete_Crack_Properties.pdf - Read/Download File

A Novel Image Database Analysis System for Maintenance of
The U.S. Government assumes no liability for the contents or use thereof. ... Transportation infrastructures such as highways, streets, and bridges represent ... condition assessment process. ... successfully applied for crack localization in beam structures [2], [3]. .... The blurred image is obtained by convoluting a low- pass.
[ UT-UTC-IU-5_Final_Report_6-201.pdf - Read/Download File

Blind Image Quality Assessment Using Joint Statistics of Gradient
Abstract—Blind image quality assessment (BIQA) aims to evaluate the ..... with different contents and a blurred chessboard image with contrast increasing ...
[ BIQAUsingGM-LoG.pdf - Read/Download File

chapter 4: how to make maps with drones - World of Drones: Flights
Jul 7, 2015 ... to create a mosaic from aerial imagery is by using photo- stitching ... structural damage to roads,8 identifying the source of groundwater ...
[ Chapter 4.pdf - Read/Download File

Emergency Salvage of Flood Damaged Family Papers
Assessment of Damage and Planning for Salvage .... Avoid structures with wide span roofs (e.g., gymnasium). .... If driving, watch for flooding at highway dips, bridges, and low areas due to rain not .... for images which are blurred, feathered, or faded as a result of flood damage. ... Photographs, Negatives, Motion Picture Film.
[ flood-damage-papers.pdf - Read/Download File

RAIB report 17/2010 - Gov.uk
Nov 4, 2010 ... traffic when they became aware of a serious defect with the bridge. The down ... However, bridge 48 was damaged beyond repair, and the river span was subsequently ... 10 Amey provides structural examination services to Network Rail under a 'Civil .... scour assessment (using ex-BR 'EX 2502' method);.
[ 100923_R172010_Feltham.pdf - Read/Download File

CURe MODERN - Franco-German Infrastructure Inspection with
Sep 20, 2013 ... monuments at high resolutions for damage assessment and ... and thermal cameras for high definition image or video capture. ... engineering structures made of steel and prestressed concrete, bridges and engineering structures ..... Chacon, and A. J. Ahumada Jr. Detection of blurred cracks: A step towards.
[ CURe_MODERN_–_Franco-German_Infrastructure_Inspection_with_Unmanned_Air_Systems.pdf - Read/Download File

(Culvert) Assessment Protocol
New Hampshire Stream Crossing Assessment Protocol Instructions: ... Location: Describe the location of the structure, using nearby landmarks and road ... Number of bridge cells or arches at crossing (bridge/arch form only) ..... the species or if you cannot identify the species due to damage and/or decay. ... 1) blurry photos.
[ culvert-assessment-protocol.pdf - Read/Download File

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