scholarly journals 2D Maps for Visual Analysis and Retrieval in Large Multi-Feature 3D Model Databases

2005 ◽  
Author(s):  
B. Bustos ◽  
D.A. Keim ◽  
C. Panse ◽  
T. Schreck
Keyword(s):  
3D Model ◽  
Visual Analysis

scholarly journals METHODS OF APPLICATION OF COMPUTER MICROTOMOGRAPHY IN GEOLOGY

2015 ◽  
pp. 31-35
Author(s):  
A. A. Ponomarev ◽  
M. D. Zavatsky
Keyword(s):  
Mineral Composition ◽  
3D Model ◽  
Visual Analysis ◽  
Pore Space ◽  
Petroleum Geology ◽  
The World ◽  
Micro Tomography ◽  
Tomography Method ◽  
Filtration Properties ◽  
Methods Of Application

The world experience of tomography and micro-tomography methods application in petroleum geology was de-scribed in the article. The examples of determining the mineral composition of rock based on the visual analysis are described. The 3D model of the pore space with segmentation inside the pore fluids was constructed. The attempt is described to correlate the data of average equivalent-diameters with permeability, and a number of conclusions about the universality of application of the computer micro-tomography method in geology based on visual analysis of rocks tomograms are made. Some findings about isotropy / anisotropy of physico-mechanical and filtration properties are presented. The promising areas of application of the method in the petroleum geology sphere are highlighted.

Possibilities for improving the diagnosis of clinically significant prostate cancer based on 3D modeling.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e17617-e17617
Author(s):  
Sergey N. Dimitriadi ◽  
Elena M. Frantsiyants ◽  
Nikolay S. Demchenko ◽  
Dmitry Ya. Iozefi ◽  
Mikhail A. Vinidchenko ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
3D Modeling ◽  
3D Model ◽  
Visual Analysis ◽  
Prostate Gland ◽  
3D Models ◽  
Seminal Vesicles ◽  
Targeted Biopsy ◽  
Transrectal Biopsy ◽  
Clinically Significant

e17617 Background: The purpose of the study was improving the accuracy of diagnosis of clinically significant prostate cancer, using 3D models based on multiparametric MRI. Methods: We examined a total of 126 patients using a 12-point transrectal biopsy supplemented with an MRI targeted biopsy. The study included patients with a PSA in plasma of 1-20 ng / ml and symptoms of the lower urinary tract. We used a GE Signa HD 1.5T tomograph and an Advantage workstation. The scanning protocol included DWI, T2-FS, T2, 3D-Cube and a multiphase series with contrast. We evalueted focal changes in the structure of the prostate during MRI, using the PiRads v2.0 system, the results were processed at the GEAW 4.7 workstation, the prostate gland, urethra, seminal vesicles and sections were separated in layers. In the final 3D model, the prostate was labeled transparent, the urethra and seminal vesicles were labeled white. This model was saved and used as a visual three-dimensional image of the volume, size and localization of the foci of the prostate gland. When conducting a standard 12-point biopsy of the prostate under ultrasound control, based on a visual analysis of the 3D model, 2 additional injections were made into each part of the prostate, graded according to the PiRads≥ 3 scale. Results: We compared MRI with the histological results of a 12-point biopsy on the main 3D models of the prostate gland Among 126 patients, changes in MRI using the PiRads v2.0 system had 3 points in 48, PiRads 4 points - 32, PiRads 5 in 46 Among patients with PiRads 3 who underwent a standard 12-point biopsy, supplemented by targeted biopsy based on analysis of 3D models after MRI in 4 (8.3%) revealed clinically significant prostate cancer. Among patients with PiRads 4, clinically significant cancer was found in 11 (34.4%). In patients with PiRads 5, clinically significant cancer was found in 33 (71.7%). Conclusions: A transrectal biopsy of the prostate (using 3D modeling based on MRI with focal marking according to PI-RADS v2.0) allows to effectively identify clinically significant prostate cancer. Performing a transrectal biopsy of the prostate based on 3D modeling is the result of the effective application of an interdisciplinary approach to solving the problem of diagnosing clinically significant prostate cancer.

Comparative Effects of High-Tech Visual Scene Displays and Low-Tech Isolated Picture Symbols on Engagement From Students With Multiple Disabilities

2019 ◽  
Vol 50 (4) ◽  
pp. 693-702 ◽  
Author(s):  
Christine Holyfield ◽  
Sydney Brooks ◽  
Allison Schluterman
Keyword(s):  
Language Learning ◽  
Augmentative And Alternative Communication ◽  
Visual Analysis ◽  
Multiple Disabilities ◽  
Visual Scene ◽  
Future Research ◽  
High Tech ◽  
Single Subject ◽  
Wide Range ◽  
The Difference

Purpose Augmentative and alternative communication (AAC) is an intervention approach that can promote communication and language in children with multiple disabilities who are beginning communicators. While a wide range of AAC technologies are available, little is known about the comparative effects of specific technology options. Given that engagement can be low for beginning communicators with multiple disabilities, the current study provides initial information about the comparative effects of 2 AAC technology options—high-tech visual scene displays (VSDs) and low-tech isolated picture symbols—on engagement. Method Three elementary-age beginning communicators with multiple disabilities participated. The study used a single-subject, alternating treatment design with each technology serving as a condition. Participants interacted with their school speech-language pathologists using each of the 2 technologies across 5 sessions in a block randomized order. Results According to visual analysis and nonoverlap of all pairs calculations, all 3 participants demonstrated more engagement with the high-tech VSDs than the low-tech isolated picture symbols as measured by their seconds of gaze toward each technology option. Despite the difference in engagement observed, there was no clear difference across the 2 conditions in engagement toward the communication partner or use of the AAC. Conclusions Clinicians can consider measuring engagement when evaluating AAC technology options for children with multiple disabilities and should consider evaluating high-tech VSDs as 1 technology option for them. Future research must explore the extent to which differences in engagement to particular AAC technologies result in differences in communication and language learning over time as might be expected.

A Pilot Study of Early Storybook Reading With Babies With Hearing Loss

2019 ◽  
Vol 62 (9) ◽  
pp. 3397-3412
Author(s):  
Michelle I. Brown ◽  
David Trembath ◽  
Marleen F. Westerveld ◽  
Gail T. Gillon
Keyword(s):  
Hearing Loss ◽  
Pilot Study ◽  
Visual Analysis ◽  
Single Case ◽  
Eye Contact ◽  
Preliminary Evidence ◽  
Storybook Reading ◽  
Book Selection ◽  
Turn Taking ◽  
Parent Child

Purpose This pilot study explored the effectiveness of an early storybook reading (ESR) intervention for parents with babies with hearing loss (HL) for improving (a) parents' book selection skills, (b) parent–child eye contact, and (c) parent–child turn-taking. Advancing research into ESR, this study examined whether the benefits from an ESR intervention reported for babies without HL were also observed in babies with HL. Method Four mother–baby dyads participated in a multiple baseline single-case experimental design across behaviors. Treatment effects for parents' book selection skills, parent–child eye contact, and parent–child turn-taking were examined using visual analysis and Tau-U analysis. Results Statistically significant increases, with large to very large effect sizes, were observed for all 4 participants for parent–child eye contact and parent–child turn-taking. Limited improvements with ceiling effects were observed for parents' book selection skills. Conclusion The findings provide preliminary evidence for the effectiveness of an ESR intervention for babies with HL for promoting parent–child interactions through eye contact and turn-taking.

Generation of a 3D model to better mimic NAFLD in vitro

2016 ◽  
Vol 54 (12) ◽  
pp. 1343-1404
Author(s):  
LS Spitzhorn ◽  
MA Kawala ◽  
J Adjaye
Keyword(s):  
3D Model

The impact of a mega-event on city branding: The European Capital of Culture 2010 and the image of Istanbul

2013 ◽  
Vol 3 (1) ◽  
pp. 29-50 ◽  
Author(s):  
Evinç Doğan ◽  
Ibrahim Sirkeci
Keyword(s):  
Visual Analysis ◽  
Place Branding ◽  
World City ◽  
City Branding ◽  
City Image ◽  
European Capital Of Culture ◽  
National Boundaries ◽  
Symbolic Production ◽  
The Impact ◽  
The City

This study examines the ways in which the city image of Istanbul is re-created through the mega-events within the context of the European Capital of Culture (ECoC) 2010. Istanbul “took the stage” as one of the three ECoC cities (Essen for the Ruhr in Germany and Pécs in Hungary), where the urban spaces were projected as the theatre décor while residents and visitors became the spectators of the events. Organisers and agents of the ECoC 2010 seemed to rebrand Istanbul as a “world city” rather than a “European capital”. With a series of transnational connotations, this can be considered as part of an attempt to turn Istanbul to a global city. In this study we examine posters used during the ECoC 2010 to see whether this was evident in the promoted images of Istanbul. The research employs a hermeneutic approach in which representations, signs and language are the means of symbolic meaning, which is analysed through qualitative methods for the visual data (Visual Analysis Methods), namely Semiotics and Discourse Analysis. The analysed research material comes from a sample of posters released during the ECoC 2010 to promote 549 events throughout the year. Using stratified random sampling we have drawn 28 posters (5% of the total) reflecting the thematic groups of events in the ECoC 2010. Particular attention is also paid to the reflexivity of the researchers and researchers’ embeddedness to the object of research. The symbolic production and visual representation are therefore investigated firstly through the authoritative and historically constituted discourses in the making of Istanbul image and secondly through the orders of cultural consumption and mediatisation of culture through spectacular events. Hence enforcing a transnationalisation of the image of the city where the image appears to be almost stateless transcending the national boundaries. Findings and methodology used in this study can be useful in understanding similar cases and further research into the processes of city and place branding and image relationships. 

Evaluation of geometrical benchmark artifacts containing multiple overhang lengths fabricated using material extrusion technique

2020 ◽  
Vol 14 (3) ◽  
pp. 7296-7308
Author(s):  
Siti Nur Humaira Mazlan ◽  
Aini Zuhra Abdul Kadir ◽  
N. H. A. Ngadiman ◽  
M.R. Alkahari
Keyword(s):  
3D Model ◽  
Laser Scanner ◽  
Dimensional Accuracy ◽  
Fused Deposition Modelling ◽  
Layer By Layer ◽  
Fused Deposition ◽  
Layer Technique ◽  
Subtractive Manufacturing ◽  
Manufacturing Features ◽  
Layer Problem

Fused deposition modelling (FDM) is a process of joining materials based on material entrusion technique to produce objects from 3D model using layer-by-layer technique as opposed to subtractive manufacturing. However, many challenges arise in the FDM-printed part such as warping, first layer problem and elephant food that was led to an error in dimensional accuracy of the printed parts especially for the overhanging parts. Hence, in order to investigate the manufacturability of the FDM printed part, various geometrical and manufacturing features were developed using the benchmarking artifacts. Therefore, in this study, new benchmarking artifacts containing multiple overhang lengths were proposed. After the benchmarking artifacts were developed, each of the features were inspected using 3D laser scanner to measure the dimensional accuracy and tolerances. Based on 3D scanned parts, 80% of the fabricated parts were fabricated within ±0.5 mm of dimensional accuracy as compared with the CAD data. In addition, the multiple overhang lengths were also successfully fabricated with a very significant of filament sagging observed.

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